arXiv subjects

J K Sarma

Publications and source records attributed to J K Sarma.

3 recordsLinked to original sources

arXiv2013

Neutrino-nucleon scattering and xF3(x, Q2) structure function from leading order and next-to-leading order DGLAP evolution equation at small-x

Neutrino-nucleon scattering, which produces the parity violating term, xF3(x,Q2) the non-singlet hadron structure function in their weak interaction has significant contribution towards the understanding of valence quark distribution for low-Q2 and small-x region inside hadrons. Here x is the fractional momentum of partons and Q2 is the four momentum transfer in a deep inelastic scattering process. In this paper, the xF3(x,Q2) structure function has been obtained by solving the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi evolution equation in leading order and next-to-leading order at small-x limit by using the method to get unique solution. The results are compared with recent experimental data and parametrizations. Also a qualitative discussion of nuclear effect in xF3(x,Q2) is done in this regards.

hep-ph↗

arXiv2006

Taylor expansion method to solve Dokshitzer-Gribov-Lipatov- Altarelli-Parisi equations in leading and next-to-leading orders at small-x

We present particular and unique solutions of singlet and non-singlet Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations in leading order (LO) and next-to-leading order (NLO) and gluon, sea and valence quark Dokshitzer-Gribov-Lipatov-Altarelli-Parisi (DGLAP) evolution equations in leading order (LO) by applying Taylor expansion method at small-x. We obtain t-evolutions of deuteron, proton, neutron, difference and ratio of proton and neutron, gluon, light sea and valence quark structure functions and x-evolution of deuteron,gluon and light sea quark structure functions at small-x from DGLAP evolution equations. The results of tevolutions are compared with HERA and NMC low-x low-Q2 data and x-evolutions are compared with NMC low-x low-Q2 data and recent global parameterization. And also we compare our results of t-evolution of proton structure functions with a recent global parameterization.

hep-ph↗

arXiv2005

Method of characteristics and solution of DGLAP evolution equation in leading order at small-x

In this paper the singlet and non-singlet hadron structure functions have been obtained by solving Dokshitzer-Gribov-Lipatov-Alterelli-Parisi (DGLAP) evolution equations in leading order (LO) at the small-x limit. Here we have used a Taylor Series expansion and then the method of characteristics to solve the evolution equation. We have also calculated t and x-evolutions of deuteron structure function and the results are compared with the New Muon Collaboration (NMC) data.

hep-ph↗