Zobrazeno 1 - 10
of 311
pro vyhledávání: '"S. Atashbar"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 1, Pp 1-13 (2021)
Abstract We extract the polarized parton distribution functions (PPDFs) of proton. To this end we do a global analysis on recent and up-to-dated experimental data of polarized nucleon and deuteron structure functions at the NLO accuracy of perturbati
Externí odkaz:
https://doaj.org/article/ce5d9e8984874174b5da96c839c909fc
Autor:
Maral Salajegheh, S. Mohammad Moosavi Nejad, Maryam Soleymaninia, Hamzeh Khanpour, S. Atashbar Tehrani
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 12, Pp 1-12 (2019)
Abstract The main aim of this paper is to present new sets of non-perturbative fragmentation functions (FFs) for $$D^0$$ D0 and $$D^+$$ D+ mesons at next-to-leading (NLO) and, for the first time, at next-to-next-to-leading order (NNLO) in the $$\over
Externí odkaz:
https://doaj.org/article/1fb6389ec9b8411987102dde4756cae4
Publikováno v:
PHYS. REV. D 104, 074007 (2021)
We employ analytic QCD (anQCD) approach to analyze the unpolarized nucleon structure function (NSF) in deep inelastic scattering ( DIS ) processes at the next-to-leading order (NLO) accuracy. Considering the unreliable results of underlying perturbat
Externí odkaz:
http://arxiv.org/abs/2109.02372
Publikováno v:
Few-Body Syst. (2021) 62:16
We study the impact of intrinsic strange (IS) component of nucleon sea on the global analysis of parton distribution functions (PDFs) considering a wide range of experimental data. To this aim, we consider two scenarios on the basis of BHPS model res
Externí odkaz:
http://arxiv.org/abs/2103.13776
Autor:
Khanpour, Hamzeh, Soleymaninia, Maryam, Tehrani, S. Atashbar, Spiesberger, Hubert, Guzey, Vadim
Publikováno v:
Phys. Rev. D 104, 034010 (2021)
In this article we obtain a new set of nuclear parton distribution functions (nuclear PDFs) at next-to-leading order and next-to-next-to-leading order accuracy in perturbative QCD. The common nuclear deep-inelastic scattering (DIS) data analyzed in o
Externí odkaz:
http://arxiv.org/abs/2010.00555
Publikováno v:
Phys. Rev. D 101, 123001 , 2020
The structure of hybrid stars within the nonperturbative framework of the field correlator method, extended to zero-temperature limit as a quark model, has been studied. For the hadronic sector, we have used the lowest-order constraint variational me
Externí odkaz:
http://arxiv.org/abs/2006.01019
Publikováno v:
Phys. Rev. D 101, 023004 (2020)
The hadron-quark phase transition in the core of heavy neutron star (NS) has been studied. For the hadronic sector, we have used the lowest-order constraint variational method by employing $ AV_{18} $, $ AV_{14}$, $ UV_{14}$, and Reid $ 68 $ two-body
Externí odkaz:
http://arxiv.org/abs/1907.12029
Publikováno v:
Phys. Rev. D 100, 114017 (2019)
The polarized nucleon structure function in the nonsinglet case is investigated here by a new insight rather than conventional perturbative QCD (pQCD). For this purpose we note that the solution of the evolution equations in moment space involves non
Externí odkaz:
http://arxiv.org/abs/1906.01606
Autor:
Salajegheh, Maral, Nejad, S. Mohammad Moosavi, Soleymaninia, Maryam, Khanpour, Hamzeh, Tehrani, S. Atashbar
Publikováno v:
The European Physical Journal C 2019
The main aim of this paper is to present new sets of non-perturbative fragmentation functions (FFs) for $D^0$ and $D^+$ mesons at next-to-leading (NLO) and, for the first time, at next-to-next-to-leading order (NNLO) in the $\overline{\mathrm{MS}}$ f
Externí odkaz:
http://arxiv.org/abs/1904.09832
Publikováno v:
Eur. Phys. J. Plus (2020) 135:477
In this work, using the Laplace transformation technique we present our results for non-singlet quark distributions as well as nucleon structure function $F_2(x,Q^2)$ in unpolarized case at next-to-next-to-leading order (NNLO) QCD accuracy. We shall
Externí odkaz:
http://arxiv.org/abs/1904.03439