National Institute for Subatomic Physics

Amsterdam, Netherlands

National Institute for Subatomic Physics

Amsterdam, Netherlands

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News Article | May 22, 2017
Site: www.prnewswire.co.uk

The new PoP is located in the Interxion (formerly Vancis) data center building in Amsterdam Science Park. It is NTT Com's third location in the city and reflects the company's commitment to the local IT community and its growing Benelux customer base. In addition to the Interxion building, the PoP will cross connect with Digital Realty, SURFsara and the National Institute for Subatomic Physics (Nikhef). Customers will have access to NTT Com's Global IP Network and its IP transit services, Layer 2 Ethernet solutions and DDoS Protection Services. "NTT Com is focused on anticipating user demand and has identified Amsterdam Science Park as a world-class hub for research, innovation and entrepreneurship. We are delighted to be supporting such a vibrant, leading-edge community," commented Toby Russell, Sales Director, NTT Europe. As part of this support, NTT Com is also sponsoring MORE-IP, a networking event for the internet industry taking place in Amsterdam. It is hosted by non-profit AMS-IX (Amsterdam Internet Exchange), one of the world's largest internet exchanges with locations in the greater Amsterdam area and also at the Science Park. "The Netherlands plays a strategic role in the global digital infrastructure, which is growing in density and capacity. With this expansion, NTT Com is making an important contribution to its evolution both in the Netherlands and worldwide," said Jesse Robbers, CCO, AMS-IX. NTT Communications provides consultancy, architecture, security and cloud services to optimize the information and communications technology (ICT) environments of enterprises. These offerings are backed by the company's worldwide infrastructure, including leading global tier-1 IP network, Arcstar Universal One™ VPN network reaching 196 countries/regions, and over 140 secure data centers worldwide. NTT Communications' solutions leverage the global resources of NTT Group companies including Dimension Data, NTT DOCOMO and NTT DATA. Consistently ranked among the top networks worldwide, NTT Com's Tier-1 Global IP Network covers North and South America, Asia, Europe and Oceania, and provides the best possible environment for content, data and video transport through a single autonomous system number (AS 2914). NTT Com is one of the top global wholesale IP providers and the number one provider in Asia according to the latest Dyn Wholesale Rankings. More information in Europe, Middle East and Africa: http://www.eu.ntt.com | Twitter @NTT Europe US and the Americas: http://www.us.ntt.net | Twitter @NTT_America (in English) | @NTTComLatam (in Spanish and Portuguese) #globalipnetwork #AS2914


New PoP is Located at One of Europe’s Largest Hubs for Science Education, Research and Entrepreneurship LONDON, 22-May-2017 — /EuropaWire/ — NTT Communications Corporation (NTT Com), the ICT solutions and international communications business within the NTT Group, announced today that it has expanded its Tier-1 Global IP Network with a new Point of Presence (PoP) at the Amsterdam Science Park. The site is home to a host of prestigious educational institutions, cutting-edge research units and knowledge-intensive multinationals and start-ups. The new PoP is located in the Interxion (formerly Vancis) data center building in Amsterdam Science Park. It is NTT Com’s third location in the city and reflects the company’s commitment to the local IT community and its growing Benelux customer base. In addition to the Interxion building, the PoP will cross connect with Digital Realty, SURFsara and the National Institute for Subatomic Physics (Nikhef). Customers will have access to NTT Com’s Global IP Network and its IP transit services, Layer 2 Ethernet solutions and DDoS Protection Services. “NTT Com is focused on anticipating user demand and has identified Amsterdam Science Park as a world-class hub for research, innovation and entrepreneurship. We are delighted to be supporting such a vibrant, leading-edge community,” commented Toby Russell, Sales Director, NTT Europe. As part of this support, NTT Com is also sponsoring MORE-IP, a networking event for the internet industry taking place in Amsterdam. It is hosted by non-profit AMS-IX (Amsterdam Internet Exchange), one of the world’s largest internet exchanges with locations in the greater Amsterdam area and also at the Science Park. “The Netherlands plays a strategic role in the global digital infrastructure, which is growing in density and capacity. With this expansion, NTT Com is making an important contribution to its evolution both in the Netherlands and worldwide,” said Jesse Robbers, CCO, AMS-IX. About NTT Communications Corporation NTT Communications provides consultancy, architecture, security and cloud services to optimize the information and communications technology (ICT) environments of enterprises. These offerings are backed by the company’s worldwide infrastructure, including leading global tier-1 IP network, Arcstar Universal One™ VPN network reaching 196 countries/regions, and over 140 secure data centers worldwide. NTT Communications’ solutions leverage the global resources of NTT Group companies including Dimension Data, NTT DOCOMO and NTT DATA. About NTT Communications Global IP Network Consistently ranked among the top networks worldwide, NTT Com’s Tier-1 Global IP Network covers North and South America, Asia, Europe and Oceania, and provides the best possible environment for content, data and video transport through a single autonomous system number (AS 2914). NTT Com is one of the top global wholesale IP providers and the number one provider in Asia according to the latest Dyn Wholesale Rankings. More information in Europe, Middle East and Africa: www.eu.ntt.com | Twitter @NTT Europe US and the Americas: www.us.ntt.net | Twitter @NTT_America (in English) | @NTTComLatam (in Spanish and Portuguese) #globalipnetwork #AS2914


The new PoP is located in the Interxion (formerly Vancis) data center building in Amsterdam Science Park. It is NTT Com's third location in the city and reflects the company's commitment to the local IT community and its growing Benelux customer base. In addition to the Interxion building, the PoP will cross connect with Digital Realty, SURFsara and the National Institute for Subatomic Physics (Nikhef). Customers will have access to NTT Com's Global IP Network and its IP transit services, Layer 2 Ethernet solutions and DDoS Protection Services. "NTT Com is focused on anticipating user demand and has identified Amsterdam Science Park as a world-class hub for research, innovation and entrepreneurship. We are delighted to be supporting such a vibrant, leading-edge community," commented Toby Russell, Sales Director, NTT Europe. As part of this support, NTT Com is also sponsoring MORE-IP, a networking event for the internet industry taking place in Amsterdam. It is hosted by non-profit AMS-IX (Amsterdam Internet Exchange), one of the world's largest internet exchanges with locations in the greater Amsterdam area and also at the Science Park. "The Netherlands plays a strategic role in the global digital infrastructure, which is growing in density and capacity. With this expansion, NTT Com is making an important contribution to its evolution both in the Netherlands and worldwide," said Jesse Robbers, CCO, AMS-IX. NTT Communications provides consultancy, architecture, security and cloud services to optimize the information and communications technology (ICT) environments of enterprises. These offerings are backed by the company's worldwide infrastructure, including leading global tier-1 IP network, Arcstar Universal One™ VPN network reaching 196 countries/regions, and over 140 secure data centers worldwide. NTT Communications' solutions leverage the global resources of NTT Group companies including Dimension Data, NTT DOCOMO and NTT DATA. Consistently ranked among the top networks worldwide, NTT Com's Tier-1 Global IP Network covers North and South America, Asia, Europe and Oceania, and provides the best possible environment for content, data and video transport through a single autonomous system number (AS 2914). NTT Com is one of the top global wholesale IP providers and the number one provider in Asia according to the latest Dyn Wholesale Rankings. More information in Europe, Middle East and Africa: http://www.eu.ntt.com | Twitter @NTT Europe US and the Americas: http://www.us.ntt.net | Twitter @NTT_America (in English) | @NTTComLatam (in Spanish and Portuguese) #globalipnetwork #AS2914


van Leeuwen M.,National Institute for Subatomic Physics | van Leeuwen M.,University Utrecht
Nuclear and Particle Physics Proceedings | Year: 2016

A study of several observables characterising fragment distributions of medium-modified parton showers using the JEWEL and Q-PYTHIA models is presented, with emphasis on the relation between the different observables. © 2016 Elsevier B.V.


van den Broek T.,Radboud University Nijmegen | van den Broek T.,National Institute for Subatomic Physics | van Suijlekom W.D.,Radboud University Nijmegen
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Year: 2011

We derive supersymmetric quantum chromodynamics from a noncommutative spin manifold. We extend the model of Chamseddine and Connes that leads to the Einstein-Yang-Mills action and apply the spectral action principle to derive the Lagrangian of supersymmetric QCD, including soft supersymmetry breaking (negative sign) mass terms for the squarks. We find that these results are in good agreement with the physics literature. © 2011 Elsevier B.V.


Del Pozzo W.,National Institute for Subatomic Physics
Journal of Physics: Conference Series | Year: 2014

Second-generation ground-based laser interferometers are expected to deliver a wealth of gravitational waves (GW) events from coalescing compact binaries up to a redshift of about 0.3. Being free of the systematics affecting electromagnetic measurements, GW offer the possibility of an independent measurement of H0. This paper presents a method based on Bayesian inference aimed at estimating the value of the cosmological parameters for any GW event. In contrast to earlier work, this framework does not require the precise identification of the putative optical counterpart, but it considers all the potential galaxy hosts consistent with the recovered sky position and distance posterior distributions. When applied to the upcoming network of second generation interferometers, 50 GW events will yield a measurement of H 0 with an uncertainty of a few per cents. © Published under licence by IOP Publishing Ltd.


Del Pozzo W.,National Institute for Subatomic Physics | Del Pozzo W.,University of Birmingham
Physical Review D - Particles, Fields, Gravitation and Cosmology | Year: 2012

The advanced worldwide network of gravitational waves (GW) observatories is scheduled to begin operations within the current decade. Thanks to their improved sensitivity, they promise to yield a number of detections and thus to open new observational windows for astronomy and astrophysics. Among the scientific goals that should be achieved, there is the independent measurement of the value of the cosmological parameters, hence an independent test of the current cosmological paradigm. Because of the importance of such a task, a number of studies have evaluated the capabilities of GW telescopes in this respect. However, since GW do not yield information about the source redshift, different groups have made different assumptions regarding the means through which the GW redshift can be obtained. These different assumptions imply also different methodologies to solve this inference problem. This work presents a formalism based on Bayesian inference developed to facilitate the inclusion of all assumptions and prior information about a GW source within a single data analysis framework. This approach guarantees the minimization of information loss and the possibility of including naturally event-specific knowledge (such as the sky position for a gamma ray burst-GW coincident observation) in the analysis. The workings of the method are applied to a specific example, loosely designed along the lines of the method proposed by Schutz in 1986, in which one uses information from wide-field galaxy surveys as prior information for the location of a GW source. I show that combining the results from few tens of observations from a network of advanced interferometers will constrain the Hubble constant H 0 to an accuracy of ∼4%-5% at 95% confidence. © 2012 American Physical Society.


van den Broek T.,Radboud University Nijmegen | van den Broek T.,National Institute for Subatomic Physics | van Suijlekom W.D.,Radboud University Nijmegen
Communications in Mathematical Physics | Year: 2011

We derive supersymmetric quantum chromodynamics from a noncommutative manifold, using the spectral action principle of Chamseddine and Connes. After a review of the Einstein-Yang-Mills system in noncommutative geometry, we establish in full detail that it possesses supersymmetry. This noncommutative model is then extended to give a theory of quarks, squarks, gluons and gluinos by constructing a suitable noncommutative spin manifold (i. e. a spectral triple). The particles are found at their natural place in a spectral triple: the quarks and gluinos as fermions in the Hilbert space, the gluons and squarks as the (bosonic) inner fluctuations of a (generalized) Dirac operator by the algebra of matrix-valued functions on a manifold. The spectral action principle applied to this spectral triple gives the Lagrangian of supersymmetric QCD, including supersymmetry breaking (negative) mass terms for the squarks. We find that these results are in good agreement with the physics literature. © 2011 The Author(s).


Sathyaprakash B.S.,University of Cardiff | Schutz B.F.,Max Planck Institute for Physics | Van Den Broeck C.,National Institute for Subatomic Physics
Classical and Quantum Gravity | Year: 2010

The Einstein Telescope, a third-generation gravitational-wave detector under a design study, could detect millions of binary neutron star inspirals each year. A small fraction of these events might be observed as gamma-ray bursts, helping to measure both the luminosity distance DL to and redshift z of the source. By fitting these measured values of DL and z to a cosmological model, it would be possible to infer the dark energy equation of state to within 1.5% without the need to correct for errors in DL caused by weak lensing. This compares favourably with 0.3-10% accuracy that can be achieved with the Laser Interferometer Space Antenna (where weak lensing will need to be dealt with) as well as with dedicated dark energy missions that have been proposed, where 3.5-11% uncertainty is expected. © 2010 IOP Publishing Ltd.


Farinelli C.,National Institute for Subatomic Physics
IEEE Nuclear Science Symposium Conference Record | Year: 2012

The LHCb experiment at the Large Hadron Collider (LHC) at CERN is a dedicated experiment designed to search for New Physics in the decays of beauty and charm hadrons. These hadrons are identified via their flight distance in the Vertex Locator (VELO), making the VELO extremely important for the physics performance of LHCb. The VELO is a silicon strip detector, located around the interaction region. It consists of two retractable halves with 21 modules each, which are open during injection and closed when 'stable beams' are declared, bringing the VELO sensors at a distance of 8 mm from the LHC beams. Each module has two n-on-n type silicon sensors mounted back to back. Due to its proximity to the beam it is subject to high doses of radiation, which are non-uniform across the sensors and along the z-axis. The VELO has been operated successfully during the first two years of data taking. Results for the hit resolution, primary vertex resolution and impact parameter resolution are presented. Some aspects of radiation damage are also discussed. © 2012 IEEE.

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