Rashid S.,Center for Scientific Development |
Rashid S.,Rutgers University
Journal of Physics G: Nuclear and Particle Physics | Year: 2012
Using the exact solution of the minimally coupled Dirac equation as the state for the lepton, the cross section for the weak interaction is calculated in the presence of an intense laser field. A completely new term is discovered due to the interaction of the spin of the electron with the intense laser field present. Moreover, the presence of the dressed lepton only in the initial or final state gives rise to new arguments for the Bessel functions which is different from those calculated by previous authors. We have computed the decay rate of a free neutron in the presence of an intense laser field. It is shown that with the increasing intensity, the lifetime of the free neutron increases nonlinearly. © 2012 IOP Publishing Ltd.