Nuclear EMC Effect in a Statistical Model

Abstract

A simple statistical model in terms of light-front kinematic variables is used to explain the nuclear EMC effect in the range $x\in [0.2,0.7]$, which was constructed by us previously to calculate the parton distribution functions (PDFs) of the nucleon. Here, we treat the temperature $T$ as a parameter of the atomic number $A$, and get reasonable results in agreement with the experimental data. Our results show that the larger $A$, the lower $T$ thus the bigger volume $V$, and these features are consistent with other models. Moreover, we give the predictions of the quark distribution ratios, \emph{i.e.}, $q^A(x)/q^D(x)$, ${\bar{q}}^A(x)/{\bar{q}}^D(x)$, and $s^A(x)/s^D(x)$, and also the gluon ratio $g^A(x)/g^D(x)$ for iron as an example. The predictions are different from those by other models, thus experiments aiming at measuring the parton ratios of antiquarks, strange quarks, and gluons can provide a discrimination of different models.

26 latex pages, 3 figures

References in corpus (3)

• Statistical effect in the parton distribution functions of the nucleon
• Strangeness asymmetry of the nucleon in the statistical parton model
• EMC effect in semi-inclusive deep-inelastic scattering process

Cited by in corpus (10)

• Light flavor asymmetry of nucleon sea
• Quark sea asymmetries of the octet baryons
• Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
• Dynamical and thermal descriptions in parton distribution functions
• The European Muon Collaboration effect from short-range correlated nucleons in a $x$-rescaling model
• Flavor-dependent EMC effect from a nucleon swelling model
• Quark flavor distribution functions for the octet baryons in the chiral quark constituent model
• Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
• Octet Quark Contents from SU(3) Flavor Symmetry
• Parton distribution functions and nuclear EMC effect in a statistical model