News Article | May 2, 2017
We can now look at how many times golfer Jordan Spieth will try landing his ball on the iconic "Island Green" in virtual reality. Fans will be able to watch The Players Championship in VR as opening play tees up on May 11 using Intel's True VR technology. Golfing's best already face pressure on the 17th hole during the TPC at the Sawgrass golf course, and now three VR cameras are being added to one of the most famous (and challenging) holes in golf. The 17th hole is on a small isle and, well, balls have a tendency of landing and occasionally bouncing in the water. "This is going to give fans a totally new experience," Intel Sports Group managing director David Aufhauser told me during a brief call Monday. You can watch the action on Samsung Gear VR headsets through the PGA TOUR VR Live app. For those without a VR headset, there will be a 360-degree video stream on Twitter and Periscope as part of the social network's ongoing PGA Tour coverage. It will be the first time Twitter, which announced a slew of new livestreaming deals on Monday, is showing live 360 video during a major sporting event. Maybe fans will get to see a (rare) hole-in-one on the 17th, similar to what Will Wilcox did last year.
News Article | April 20, 2017
ABERDEEN, Scotland, 20-Apr-2017 — /EuropaWire/ — Wood Group has been awarded a new three year contract valued at $8 million to deliver process automation engineering services to TPC Group, a leading producer of value-added products derived from C4 hydrocarbons. Effective immediately, Wood Group will serve as TPC’s main automation contractor providing automation, technical, systems, process, software, fabrication and construction support to the company’s manufacturing facilities in Houston and Port Neches in Texas and a terminal in Lake Charles, Louisiana. Bob MacDonald, Wood Group’s Specialist Technical Solutions CEO, said: “This new contract with TPC to act as their main automation contractor reflects this client’s confidence in our ability to provide innovative technical solutions that will increase the productivity and efficiency of their operations. “Our commitment is to work in close collaboration with our client, leveraging our 20 years’ expertise and capabilities in automation engineering to proactively add value to the performance of their assets.” For media and press enquiries please contact email@example.com
News Article | May 5, 2017
Funds raised at the AT&T Byron Nelson, including the Supreme Lending Celebrity-Am, benefit Momentous Institute and its education and mental health programs designed to build and repair kids' social and emotional health. Since 1968, the tournament has raised more than $150 million for Momentous Institute, powered by the Salesmanship Club of Dallas, and transformed over 100,000 lives. "We are incredibly proud to partner with the AT&T Byron Nelson, and further its positive impact on the children of this area," said Scott Everett, president and founder of Supreme Lending, a Dallas-based nationwide mortgage lender. "The Salesmanship Club of Dallas and the great Byron Nelson had a vision of impacting the youth of our city via the Momentous Institute and its incredible programs. Supreme Lending is proud to call Dallas/Fort Worth home and to play a role in this incredible legacy started by our friends with the Red Pants and Mr. Nelson. Providing a brighter future for Dallas and its citizens, and for all of the communities we serve nationwide, is at the heart of everything we do." Rodriguez, who will be inducted into the Baseball Hall of Fame on July 30, will play in the Celebrity-Am and will serve as Supreme Lending's ambassador for both the event. As a kick off to AT&T Bryon Nelson week on Monday, May 15, Everett and Rodriguez will tour the Momentous Institute. "Pudge is one of the most popular athletes in our area's history and this will be a huge summer for him," said Everett. "He's a great role model for the kids at the Momentous Institute, and we are proud to have him hitting cleanup for us on this one, as we work to support young people in our community." "We are excited to partner with Supreme Lending and Pudge Rodriguez to promote the tournament and the lasting impact it has on children right here in North Texas," said Michelle Kinder, executive director of Momentous Institute. "Thanks to the community's generosity we can focus on changing the odds for kids by prioritizing social emotional health through our education, therapy, research and training." Celebrities expected to play in the Supreme Lending Celebrity-Am include current Dallas Cowboys offensive lineman Zack Martin and former Cowboys greats Miles Austin, Thomas "Hollywood" Henderson, Daryl "Moose" Johnston and Ed "Too Tall" Jones; former Dallas Maverick Michael Finley; former Dallas Stars Brenden Morrow and Marty Turco; Texas A&M head football coach Kevin Sumlin and Aggie coaching legend R.C. Slocum; along with several country music stars, including Wade Bowen and Jack Ingram. The 2017 AT&T Byron Nelson is May 15-21 at the TPC Four Seasons Resort and Club Dallas in Las Colinas. About Supreme Lending Established by founder Scott Everett in 1999, Supreme Lending is a full-service mortgage lender licensed in 50 states with branches throughout the U.S, adding more branches each month. The growing company employs hundreds of employees and has been ranked among the "Best Places to Work" by multiple American City Business Journals for the past five years. Supreme Lending has established relationships with all major investors, is a Fannie Mae seller/servicer, and offers a full range of mortgage programs, including conforming and non-conforming loans and FHA/VA loans. The corporate culture is based on a customer-comes-first approach, which helps homebuyers realize their dreams of homeownership. Supreme Lending has been recognized for five consecutive years as an Inc. 500/5000 company and in was named one of the Top 100 Mortgage Companies in America by Mortgage Executive Magazine for the past 4 years as well as a Top Mortgage Employer by National Mortgage Professional and a Top Retail and Overall Originator by Scotsman Guide. For further information, please visit www.SupremeLending.com, or call (888) 392-0250. EVERETT FINANCIAL, INC. D/B/A SUPREME LENDING NMLS ID #2129 (www.nmlsconsumeracces.org). About the AT&T Byron Nelson The AT&T Byron Nelson is hosted by the Salesmanship Club of Dallas and has been a premier PGA TOUR event for 49 years. The tournament has raised more than $150 million since its inception in 1968, making it the most financially successful charity event on the PGA TOUR. All proceeds benefit Momentous Institute, the nonprofit operated by the Salesmanship Club for over 95 years. The organization serves 6,000 kids and family members directly each year through mental health and education programs. The AT&T Byron Nelson is one of North Texas' biggest sports attractions and most anticipated social events of the spring. To view the original version on PR Newswire, visit:http://www.prnewswire.com/news-releases/supreme-lending-inks-three-year-partnership-with-att-byron-nelson-teams-up-with-texas-rangers-legend-to-support-kids-in-north-texas-300452339.html
News Article | May 8, 2017
NEW YORK--(BUSINESS WIRE)--Morgan Stanley (NYSE: MS) today announced the launch of The Eagles for Impact Challenge, a new program where for each eagle made throughout THE PLAYERS Championship, Morgan Stanley will donate to the Ronald McDonald Family Room at Wolfson Children’s Hospital in Jacksonville, Florida. For more than 40 years, Morgan Stanley has been committed to helping children get a healthy start to life and will be tracking eagles made this week at THE PLAYERS Stadium Course at TPC Sawgrass in Ponte Vedra Beach, Florida, to give back to the local community. Morgan Stanley will donate $5,000 for every eagle made, up to $250,000, as part of a grant to renovate, maintain and operate the Ronald McDonald Family Room, including a new garden. Opened in 1993, the Ronald McDonald Family Room offers a respite for families while their children receive care. Local Morgan Stanley employees will also volunteer to help support the families that use the room and provide maintenance as needed for the room and garden. “We’re proud to be back at THE PLAYERS celebrating great performances by giving back,” said Mandell Crawley, Chief Marketing Officer, Morgan Stanley. “Together with the PGA TOUR, we share a commitment to excellence, performance and giving back and are thrilled to support the Ronald McDonald Family Room this week. We believe capital creates change, and as we deliver on this mission for our clients, our employees are creating change in our communities.” As a Proud Partner of THE PLAYERS, Morgan Stanley will provide multiple opportunities to follow along as eagles are made, including: “THE PLAYERS Championship is committed to giving back to the Northeast Florida community, and we’re thrilled that Morgan Stanley has created and committed an additional avenue to generate funds for such a worthwhile and much-needed cause like the Ronald McDonald Family Room at Wolfson Children’s Hospital,” said Jared Rice, executive director of THE PLAYERS. “Our 2,000-plus volunteers, tournament staff and fans are proud to be associated with Eagles for Impact, knowing that thanks to their support of the tournament – and Morgan Stanley’s generosity – children and families in need are being helped in countless ways.” PGA TOUR superstar and Olympic gold-medalist Justin Rose is an enthusiastic supporter of the program. “My wife Kate and I have a real passion for children’s health, so I’m thrilled to partner with Morgan Stanley in support of this new and exciting Eagles for Impact Challenge. THE PLAYERS is one of the most prestigious championships we play, and the course rewards bold and aggressive shot-making. Making an eagle always feels good, but thanks to Morgan Stanley, this week it will feel even better.” THE PLAYERS will air May 11-14 on Golf Channel and NBC. Visit www.MorganStanley.com/EagleUp to learn more and follow along on social media using #EagleUp. Morgan Stanley (NYSE: MS) is a leading global financial services firm providing investment banking, securities, wealth management and investment management services. With offices in more than 42 countries, the Firm's employees serve clients worldwide including corporations, governments, institutions and individuals. For more information about Morgan Stanley, please visit www.morganstanley.com. THE PLAYERS Championship annually combines the best field in golf with the world-class venue that is THE PLAYERS Stadium Course at TPC Sawgrass. Morgan Stanley, PwC and Optum are the exclusive Proud Partners of THE PLAYERS. Proceeds from THE PLAYERS benefit Northeast Florida charities and have totaled more than $84 million since the event moved to Ponte Vedra Beach in 1977, including a record $8.5 million generated in 2016. In April 2011, THE PLAYERS announced a new charitable focus, committing to generate $50 million for youth-related charities over 10 years. For more on THE PLAYERS and the surrounding area, visit THEPLAYERSChampionship.com or floridashistoriccoast.com.
News Article | February 22, 2017
LOS ANGELES--(BUSINESS WIRE)--Tutor Perini Corporation (NYSE: TPC), a leading civil and building construction company, today announced that it has been awarded a design-build contract by the U.S. Air Force to design and construct facilities in support of the Royal Saudi Air Force through a Foreign Military Sales program. The project was competitively bid through an Air Force Civil Engineer Center multiple award task order contract and is funded by the Kingdom of Saudi Arabia. The contract value will be included as part of the Company’s reported first quarter 2017 backlog. The project entails the design and construction of multiple facilities and site improvements, including: Range Operations Facility, Laborers Quarters, Access Control Facility, Security Facility, Maintenance Workshop Facility, Storage Facilities, Crew Facilities, Mosque, Towers, Range Targets, C-130 Assault Strip and other supporting range infrastructure, as well as all utilities, parking lots and access roads within the complex. Construction is expected to begin in the spring of 2017, with completion by early 2019. The work will be managed by Tutor Perini’s subsidiary, Perini Management Services, Inc., which specializes in worldwide federal construction. Architect-Engineering services will be provided by Tetra Tech, Inc., of Pasadena, California. Tutor Perini Corporation is a leading civil and building construction company offering diversified general contracting and design-build services to private clients and public agencies throughout the world. We have provided construction services since 1894 and have established a strong reputation within our markets by executing large complex projects on time and within budget while adhering to strict quality control measures.
News Article | February 16, 2017
HOUSTON, Feb. 16, 2017 (GLOBE NEWSWIRE) -- TPC Group today announced the appointment of Bart de Jong as Senior Vice President and Chief Financial Officer (CFO) of the Company. In this role, Mr. de Jong will oversee the finance, accounting and investor relations functions, in addition to a renewed corporate development function. A photo accompanying this announcement is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/fb6c1743-3e76-42b4-9c8a-520984f6be5b Mr. de Jong has been working with the Company for the past 10 months on a consulting basis, leading corporate development efforts, including the recent divestiture of our Baytown, Texas nonene and tetramer facility and manufacturing site along with the development of the Company’s current long range plan. Mr. de Jong began his career in auditing with KPMG, then held various accounting and internal audit positions at ExxonMobil. He spent the majority of his career with LyondellBasell and predecessor companies, with a wide range of experiences and responsibilities in strategic planning, finance, corporate development and human resources. During his time at LyondellBasell, Mr. de Jong served as President of a number of divisions, including inorganic chemicals and fuels, as well as leading LyondellBasell’s Americas businesses and operations. Early in his career, he also served as CFO of a startup technology company. “We are very pleased to have someone with the breadth and depth of experience Bart brings to TPC,” said Chairman and CEO, Ed Dineen. “In this broader function of CFO, Bart and his team will play a key role in delivering and accelerating the value creation and debt reduction identified in our long range plan. We are happy we have been able to make this and a series of other organizational moves to enhance value and alignment, while providing new employee development opportunities and lowering our SG&A costs.” “This is an exciting time to join TPC Group, and I’m proud to have the opportunity to help the organization with the execution of a sound long range plan,” said Mr. de Jong. Mr. de Jong has a master of science degree in economics from Erasmus University and is a Certified Public Accountant in The Netherlands. About TPC Group TPC Group is a leading producer of value-added products derived from petrochemical raw materials such as C4 hydrocarbons, and provider of critical infrastructure and logistics services along the Gulf Coast region. The Company sells its products into a wide range of performance, specialty and intermediate segments, including synthetic rubber, fuels, lubricant additives, plastics and surfactants. Headquartered in Houston, Texas, with an operating history of over 70 years, TPC Group has manufacturing facilities in the industrial corridor adjacent to the Houston Ship Channel and Port Neches, Texas, and operates a product terminal in Lake Charles, Louisiana.
News Article | February 23, 2017
LOS ANGELES--(BUSINESS WIRE)--Tutor Perini Corporation (NYSE: TPC), a leading civil and building construction company, today reported results for the fourth quarter and year ended December 31, 2016. Revenue was $1.2 billion and $5.0 billion for the fourth quarter and full year, respectively, compared to $1.2 billion and $4.9 billion for the same periods in 2015. Income from construction operations increased significantly to $52.1 million and $201.9 million for the fourth quarter and full year, respectively, compared to $15.5 million and $105.4 million for the comparable periods in 2015. Net income for the fourth quarter and full year 2016 also increased substantially to $30.3 million, or $0.60 per diluted share, and $95.8 million, or $1.92 per diluted share, respectively, compared to $8.7 million, or $0.18 per diluted share, and $45.3 million, or $0.91 per diluted share, for the comparable periods in the prior year. In 2015, adverse charges were recorded in all segments, which impacted income from construction operations and net income. The increase in income from construction operations and net income for the fourth quarter and full year 2016 was due to improved operating performance in all segments. A favorable effective tax rate for 2016, driven by a shift in revenue mix between states and certain tax adjustments, was offset by expenses incurred for refinancing efforts undertaken during the year, including two credit facility amendments. The Company generated $19.2 million of operating cash in the fourth quarter of 2016 and $113.3 million for the full year, which was the highest full year operating cash result in eight years. As expected, operating cash exceeded net income in 2016. The Company expects that cash generation will continue to be strong in 2017 and that cash flow from operations will again exceed net income for the year. Total unbilled costs decreased by $73.3 million in 2016. The Company expects continued progress in reducing unbilled costs over the next several quarters, which should contribute to substantial cash generation throughout 2017. Backlog as of December 31, 2016 was $6.2 billion, compared to $7.5 billion as of December 31, 2015. New awards and adjustments to contracts in process during the fourth quarter and full year 2016 were $0.8 billion and $3.7 billion, respectively, compared to $1.1 billion and $4.6 billion for the same periods last year. The Civil and Building segments were the major contributors to new award activity in 2016 and are expected to continue driving backlog in 2017. The Company’s new awards have been strong to date in 2017 and include the previously announced $1.4 billion Purple Line Extension Section 2 contract for the Los Angeles Metropolitan Transportation Authority, three mechanical contracts in New York City worth $104 million and a U.S. Air Force design-build project valued at $80 million for work in Saudi Arabia. “Our fourth quarter and full year results met our expectations and were within our original EPS guidance for 2016. The results were driven by good project execution in our Civil and Building segments. We experienced improved operating performance in 2016 across all segments compared to 2015 and expect to further improve the performance of our Specialty Contractors segment in 2017. The strong cash we generated in 2016 signals that our intense focus on reducing our unbilled costs and collecting cash is bearing results,” commented Ronald Tutor, Chairman and Chief Executive Officer. Tutor continued, “We believe that 2017 will be an even better year given the new awards we have already booked and others we hope to be awarded, together with the unprecedented volume of civil project opportunities.” Based on the Company’s current backlog, which includes the significant new awards booked to date in 2017, together with the substantial volume of prospective opportunities, the Company sees a strong year ahead, which is reflected in the guidance for 2017. Revenue is expected to be in excess of $5.5 billion and diluted EPS is expected to be in the range of $2.10 to $2.40. The results are anticipated to be weighted towards the second half of 2017, as is typical given the seasonality of the Company’s business. The Company will host a conference call at 2:00 PM Pacific Time on Thursday, February 23, 2017, to discuss the fourth quarter and full year results. To participate in the conference call, please dial 877-407-8293 five to ten minutes prior to the scheduled time. International callers should dial +1-201-689-8349. The conference call will be webcast live over the Internet and can be accessed by all interested parties on Tutor Perini's website at www.tutorperini.com. To listen to the webcast, please visit the Company's website at least fifteen minutes prior to the start of the call to register and to download and install any necessary software. For those unable to participate during the live call, the webcast will be available for replay shortly after the call on the website. Tutor Perini Corporation is a leading civil and building construction company offering diversified general contracting and design-build services to private clients and public agencies throughout the world. We have provided construction services since 1894 and have established a strong reputation within our markets by executing large complex projects on time and within budget while adhering to strict quality control measures. We offer general contracting, pre-construction planning and comprehensive project management services, including the planning and scheduling of the manpower, equipment, materials and subcontractors required for a project. We also offer self-performed construction services including site work, concrete forming and placement, steel erection, electrical, mechanical, plumbing and heating, ventilation and air conditioning (HVAC). We are known for our major complex building project commitments, as well as our capacity to perform large and complex transportation and heavy civil construction for government agencies and private clients throughout the world. The statements contained in this Release, including those set forth in the section “Outlook and Guidance,” that are not purely historical are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, including without limitation, statements regarding the Company’s expectations, hopes, beliefs, intentions or strategies regarding the future and statements regarding future guidance or estimates and non-historical performance. These forward-looking statements are based on the Company’s current expectations and beliefs concerning future developments and their potential effects on the Company. The Company’s expectations, beliefs and projections are expressed in good faith and the Company believes there is a reasonable basis for them. There can be no assurance that future developments affecting the Company will be those that we have anticipated. These forward-looking statements involve a number of risks, uncertainties (some of which are beyond the control of the Company) or other assumptions that may cause actual results or performance to be materially different from those expressed or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to, the Company’s ability to win new contracts and convert backlog into revenue; the Company's ability to successfully and timely complete construction projects; increased competition and failure to secure new contracts; the outcomes of pending or future litigation, arbitration or other dispute resolution proceedings and the timing of related collections; the potential delay, suspension, termination or reduction in scope of construction projects; the continuing validity of the underlying assumptions and estimates of total forecasted project revenues, costs and profits and project schedules; the availability of borrowed funds on terms acceptable to the Company; failure to meet our obligations under our debt agreements; the ability to retain certain members of management; the ability to obtain surety bonds to secure the Company’s performance under certain construction contracts; possible labor disputes or work stoppages within the construction industry; changes in federal and state appropriations for infrastructure projects and the impact of changing economic conditions on federal, state and local funding for infrastructure projects; possible changes or developments in international or domestic political, social, economic, business, industry, market and regulatory conditions or circumstances; failure to comply with laws and regulations related to government contracts; actions taken or not taken by third parties, including the Company’s customers, suppliers, business partners, and competitors and legislative, regulatory, judicial and other governmental authorities and officials; impairments of our goodwill or other indefinite-lived intangible assets; possible systems and information technology disruptions; the impact of inclement weather conditions on projects; and other risks and uncertainties discussed under the heading “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2016 filed with the Securities and Exchange Commission on February 23, 2017. The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as may be required under applicable securities laws.
News Article | February 22, 2017
The opportunity to learn from best-in-class CX deployments, insight on the latest of Internet of Things and how best to build the customer experience are just three of nearly a dozen reasons to attend the upcoming ICX Summit. The annual event, taking place June 5-7 in Dallas, draws highly-respected speakers and a robust audience hungry to network, listen to company leaders deploying CX technologies and gain deep insight on emerging trends and new strategies. The annual event is in partnership with the Interactive Customer Experience (ICX) Association and Networld Media Group. "I have people come up to me all the time at some of the bigger shows and tell me how much they look forward to the ICX Summit," said ICX Association Managing Director Christopher Hall. Hall noted the event presents a golden opportunity to learn from peers about the most innovative, leading-edge technology deployments in the marketplace. "The big shows have their value, obviously, and the summit isn't aimed at competing with any of them. But they also can be a bit overwhelming, and the opportunities for longer, more engaged face-to-face conversations are pretty limited. The summit, though, is smaller and more intimate by design. Its main goal is to facilitate both education and networking in a setting that encourages attendees to actually engage with and get to know one another," added Hall. Morten Gotterup, SVP, Westfield Brand Ventures, kicks off the three-day summit with a keynote on best-in-class customer experience. The session will include examples from various sectors and how retailers can apply those principles to their business. The state of IoT is also on the second day's sessions agenda. Panelists include Dickey’s Barbecue VP of IT and Development Paula Suarez, and the focus will be a discussion the intersection of CX and IoT. Crafting a rewarding customer experience is the focus of a panel that day. The session which will focus on how to move from a simple transactional experience to an experiential experience, rising above the price-only aspect. It will be moderated by Mason Page, SVP of strategy and client services, Reflect and the panel includes JGA Chairman Ken Nisch. That evening, the ICX Association will honor the individuals and organizations setting the pace in using technology to elevate the customer experience with its annual Elevate Awards. The awards recognize excellence in ICX content at the point of wait and point of sale, and ICX deployments across a wide range of vertical markets. The awards dinner, open to all attendees, will be held at The Star, home of the world headquarters of the Dallas Cowboys. New this year will be an optional after-summit networking event. The ICX Association will host a golf scramble at the TPC Four Seasons Las Colinas golf course. This is a rare opportunity for attendees to play the course that is home to the PGA’s Byron Nelson tournament. To get the full agenda, click here. Early bird registration is now open through March 3. Founded in 2000, Networld Media Group is a leading business-to-business (B2B) media communications company specializing in digital media, associations and events in the mobile, self-service, digital signage, retail, food service and financial services industries. Online properties include ATMmarketplace.com, DigitalSignageToday.com, FastCasual.com, PizzaMarketplace.com, KioskMarketplace.com, MobilePaymentsToday.com, VirtualCurrencyToday.com, QSRweb.com, RetailCustomerExperience.com and ChurchCentral.com. Networld event properties include the Fast Casual Executive Summit, CONNECT: The Mobile CX Summit, Interactive Customer Experience Summit, Bank Customer Experience Summit and the Restaurant Franchising & Innovation Summit. Networld also operates the ICX Association. Its newest offering, Networld Press, provides clients with an all-in-one website solution featuring custom website design and ongoing editorial, content strategy and website updates.
News Article | February 15, 2017
The DARWIN observatory proposed to be built at Gran Sasso in the mid-2020s promises to be the ultimate dark-matter detector, probing the WIMP paradigm to its limit. L’observatoire DARWIN, dont l’activité doit commencer dans les années 2020 au laboratoire de Gran Sasso, promet d’être idéalement placé pour se pencher sur la nature de la matière noire. Il utilisera un élément noble, le xénon, sous sa forme liquide, pour détecter des WIMP (soit des particules massives interagissant faiblement), et aura une sensibilité sans précédent de 2,5 × 10–49 cm2 pour une masse des WIMP de 40 GeV/c2. Cela permettra de tester le paradigme des WIMP jusque dans ses limites, ainsi que d’étudier d’autres questions fondamentales à propos des neutrinos et d’autres particules. Il est prévu que DARWIN, actuellement dans sa phase de conception et de R&D, réalise ses premières campagnes pour la physique à partir de 2024. Le groupement DARWIN s’agrandit, et comprend actuellement environ 150 scientifiques de 26 instituts, situés dans 11 pays. Dark matter is one of the greatest mysteries of our cosmos. More than 80 years after its postulation in modern form by the Swiss–American astronomer Fritz Zwicky, the existence of a new unseen form of matter in our universe is established beyond doubt. Dark matter is not just the gravitational glue that holds together galaxies, galaxy clusters and structures on the largest cosmological scales. Over the past few decades it has become clear that dark matter is also vital to explain the observed fluctuations in cosmic-microwave-background radiation and the growth of structures that began from these primordial density fluctuations in the early universe. Yet despite overwhelming evidence, its existence is inferred only indirectly via its gravitational pull on luminous matter. As of today, we lack the answer to the most fundamental questions: what is dark matter made of and what is its true nature? DARWIN, the ultimate dark-matter detector using the noble element xenon in liquid form, will be in a unique position to address these fundamental questions. Currently in the design and R&D phase, DARWIN will be constructed at the Gran Sasso National Laboratory (LNGS) in Italy and is scheduled to carry out its first physics runs from 2024. The DARWIN consortium is growing, and currently consists of about 150 scientists from 26 institutions in 11 countries. The particles described by the Standard Model of particle physics are unable to account for dark matter. Although neutrinos, the only elementary particles that do not interact with photons, would be ideal candidates, they are much too light and do not form the observed large-scale structures. Dark matter could, however, be made of new elementary particles that were born in the young and energetic universe. Such particles would carry no electric or colour charge, would be either stable or very long-lived and, similar to neutrinos, would interact only feebly (if at all) with known matter via new fundamental forces. Theories beyond the Standard Model predict a wealth of viable dark-matter candidates. The most popular class has the generic name of weakly interactive massive particles (WIMPs), while a different class is axions, or more generally axion-like particles (ALPs). Worldwide, more than a dozen experiments are preparing to observe low-energy nuclear recoils induced by galactic WIMPs in ultra-sensitive, low-background detectors. Since the predicted WIMP masses and scattering cross-sections are model-dependent and essentially unknown, searches must cover a vast parameter space. Among the most promising detectors are those based on liquefied noble-gas targets such as liquid xenon (LXe) or liquid argon (LAr) – a well-established technology that can be scaled up to tonne-scale target masses and take data over periods lasting several years. DARWIN, which will operate a multi-tonne liquid-xenon time projection chamber (TPC), follows in the footsteps of its predecessors XENON, ZEPLIN, LUX and PandaX. The technology employed by these experiments is very similar and, in addition, the entire XENON collaboration is now a part of the DARWIN collaboration. Since December 2016, an upgraded detector called XENON1T has been recording its first dark-matter data at LNGS using two tonnes of liquid xenon as the WIMP target (the total mass of xenon in the detector is 3.3 tonnes). It will probe WIMP–nucleon cross-sections down to as little as 1.6 × 10–47 cm2 at a mass of 50 GeV/c2 (for comparison, the scattering cross-section of low-energy 7Be solar neutrinos on electrons is about 6 × 10–45 cm2). A further planned upgrade called XENONnT with seven tonnes of LXe will increase the WIMP sensitivity by one order of magnitude. The goals of DARWIN are even more ambitious, promising an unprecedented sensitivity of 2.5 × 10–49 cm2 at a WIMP mass of 40 GeV/c2. Such a reach would allow us to explore the entire experimentally accessible parameter space for WIMPs, to the point where the WIMP signal becomes indistinguishable from background processes from coherent neutrino-nucleus scattering events. DARWIN will not only search for WIMP dark matter. Because of its ultra-low background level, it will be sensitive to additional, hypothetical particles that are expected to have non-vanishing couplings to electrons. These include solar axions, galactic ALPs and bosonic super-weakly interacting massive particles called superWIMPs, which have masses at the keV scale and are candidates for warm dark matter. It will also detect low-energy solar neutrinos produced by proton–proton fusion reactions in the Sun (so-called pp neutrinos) with high statistics, and therefore address one of the remaining observational challenges in the field of solar neutrinos: a precise comparison of the Sun’s neutrino and photon luminosities. Capable of providing a statistical precision of less than one per cent on this comparison with just five years of data, the high-statistics measurement of the pp-neutrino flux would provide a stringent test of the solar model, as well as neutrino properties, because non-standard neutrino interactions could modify the survival probability of electron neutrinos at these low energies. The DARWIN observatory will also observe coherent neutrino-nucleus interactions from 8B solar neutrinos and be sensitive to neutrinos of all flavours from core-collapse supernovae: it would see about 800 events, or 20 events/tonne, from a supernova with 27 solar masses at a distance of 10 kpc, for example. By looking at the time evolution of the event rate from a nearby supernova, DARWIN could possibly even distinguish between different supernova models. Finally, DARWIN would search for the neutrinoless double beta (0νββ) decay of 136Xe, which has a natural abundance of 8.9 per cent in xenon. The observation of this ultra-rare nuclear decay would directly prove that neutrinos are Majorana particles, and that lepton number is violated in nature (CERN Courier July/August 2016 p34). One common feature of these exciting questions in contemporary particle and astroparticle physics is the exceedingly low expected interaction rates in the detector, corresponding to less than one event per tonne of target material and year. In addition, these searches – with the exception of the 0νββ decay – require an energy threshold that is as low as possible (a few keV), while the 0νββ decay, superWIMP and axion searches will profit from the very good energy resolution of the detector. A multi-tonne liquid-xenon observatory such as DARWIN can address the combination of an ultra-low background level, a low-energy threshold and a good energy resolution within a single, large, monolithic detector. The current best sensitivity to WIMP searches for masses above 6 GeV/c2 is provided by detectors using LXe as a target, and the majority of existing (XENON1T, LUX, PandaX) and planned (LZ, XENONnT) LXe dark-matter detectors employ dual-phase TPCs (figure 1). These detectors maintain xenon at a constant temperature of about –100 °C and detect two distinct signals (the prompt scintillation light and the ionisation electrons) via arrays of photosensors operated in the liquid and vapour phase. The observation of both signals delivers information about the type of interaction and its energy, as well as the 3D position and timing of an event. WIMP collisions and coherent neutrino scatters will produce nuclear recoils, while pp neutrinos, axions, superWIMPs and double beta decays, along with the majority of background events, will cause electronic recoils. Fast neutrons from materials or induced through cosmic-ray muons will also give rise to nuclear recoils, but WIMPs and neutrinos will scatter only once in a given detector, while neutrons can scatter multiple times in large detectors such as DARWIN. Since the primary intent of DARWIN is to investigate dark-matter interactions, it is vital that background processes are understood. The observatory can exploit the full discovery potential of the liquefied xenon technique with a 40 tonne LXe TPC that allows all known sources of background to be considered. These stem from several sources: the residual radioactivity of detector-construction materials (γ radiation, neutrons); β decays of the anthropogenic 85Kr present in the atmosphere due to nuclear fuel reprocessing, weapons tests and accidents such as that at Fukushima nuclear plant in Japan; and the progenies of 222Rn in the LXe target. Two-neutrino double beta decays (2νββ) of 136Xe and interactions of low-energy solar neutrinos (pp, 7Be) are another source of background, as are higher-energy neutrino interactions with xenon nuclei in coherent neutrino-nucleus scattering. In the standard WIMP-scattering scenario, the leading interactions between a dark-matter particle and a nucleon are due to two subtly different processes: spin-dependent couplings and isospin-conserving, spin-independent couplings. Since LXe contains nuclei with and without spin, DARWIN can probe both types of interactions. Assuming an exposure of 200 tonnes × years (500 tonnes × years), a spin-independent WIMP sensitivity of 2.5 × 10–49 cm2 (1.5 × 10–49 cm2) can be reached at a WIMP mass of 40 GeV/c2. For spin-dependent WIMP–neutron couplings and WIMP masses up to about 1 TeV, the searches conducted by DARWIN will be complementary to those of the LHC and High-Luminosity LHC at a centre-of-mass energy of 14 TeV. Natural xenon includes two isotopes with nonzero total nuclear angular momentum, 129Xe and 131Xe, at a combined abundance of about 50%. If the WIMP–nucleus interaction is indeed spin-dependent, DARWIN will also probe inelastic WIMP–nucleus scattering, where these two nuclei are excited into low-lying states at 40 keV and 80 keV, respectively, with subsequent prompt de-excitation. The discovery of such a signature would be a clear indication for an axial-vector coupling of WIMPs to nuclei. Should dark-matter particles be discovered by one of the running (XENON1T, DEAP-3600) or near-future (LZ, XENONnT) detectors, DARWIN would be able to reconstruct the mass and scattering cross-section from the measured nuclear recoil spectra. With an exposure of 200 tonnes × years, 152, 224 and 60 events would be observed for the three WIMP masses, respectively (figure 2). DARWIN may therefore be the ultimate liquid-xenon dark-matter detector, capable of probing the WIMP paradigm and thus detect or exclude WIMPs with masses above 6 GeV/c2, down to the extremely low cross-sections of 1.5 × 10–49 cm2. Should WIMPs not be observed in the DARWIN detector, the WIMP paradigm would be under very strong pressure. With its large, uniform target mass, low-energy threshold, and ultra-low background level, the observatory will also open up a unique opportunity for other rare event searches such as axions and other weakly interacting light particles. It will address open questions in neutrino physics, which is one of the most promising areas in which to search for physics beyond the Standard Model. At its lowest energies, the DARWIN detector will observe coherent neutrino-nucleus interactions from solar 8B neutrinos, thus precisely testing the standard-solar-model flux prediction, and may detect neutrinos from galactic supernovae. The DARWIN observatory was approved for an initial funding period, via ASPERA, in 2010. It is included in the European Roadmap for Astroparticle Physics and in various other programs, for example by the Swiss State Secretariat for Education, Research and Innovation and the Strategic Plan for Astroparticle Physics in the Netherlands. The current phase will culminate with a technical design report in 2019, followed by engineering studies in 2020 and 2021, with the construction at LNGS and first physics runs scheduled to start in 2022 and 2024, respectively. The experiment will operate for at least 10 years and may write a new chapter in the exciting story of dark matter.
News Article | February 15, 2017
LOS ANGELES--(BUSINESS WIRE)--Tutor Perini Corporation (NYSE: TPC), a leading civil and building construction company, announced today that it will host a conference call at 2:00 PM Pacific Time on Thursday, February 23, 2017, to discuss the Company's fourth quarter and fiscal year 2016 results. Speakers on the call from Tutor Perini will be Ronald Tutor, Chairman and CEO, and Gary Smalley, Executive Vice President and CFO. The Company plans to distribute its earnings announcement the same day after the market close. To participate in the conference call, please dial 877-407-8293 five to ten minutes prior to the scheduled time. International callers should dial +1-201-689-8349. The conference call will be webcast live over the Internet and can be accessed by all interested parties on Tutor Perini's website at www.tutorperini.com. To listen to the webcast, please visit Tutor Perini's website at least fifteen minutes prior to the start of the call to register and to download and install any necessary software. For those unable to participate during the live call, the webcast will be available for replay shortly after the call on Tutor Perini's website. Tutor Perini Corporation is a leading civil and building construction company offering diversified general contracting and design-build services to private clients and public agencies throughout the world. We have provided construction services since 1894 and have established a strong reputation within our markets by executing large complex projects on time and within budget while adhering to strict quality control measures.