Journal of Physics G: Nuclear and Particle Physics, ( ISI ), Volume (37), No (10), Year (2010-7) , Pages (1-15)

Title : ( Low Q2 proton structure function, using gluon and pseudoscalar meson clouds in the constituent quark framework )

Authors: Abolfazl Mirjalili , Mohammad Mahdi Yazdan Panah , Seyyedeh Fatemeh Taghavi Shahri , Karim Ghorbani ,

Citation: BibTeX | EndNote

Abstract

The idea of the meson cloud approach in the chiral quark model has been extended to include a gluon cloud in order to model the parton densities in the nucleon, based on the constituent quark framework. The splitting functions of a quark to quark–meson and quark–gluon at low Q2 values are used to obtain parton densities in the constituent quark approach. The phenomenological constituent model is employed to extract the parton distributions in the proton. Since we have access to the parton densities at low Q2, we are able to obtain the F2(x,Q2) structure function at low Q2 values. The result is in good agreement with the available experimental data and some theoretical models. To confirm the validity of our calculations, the fraction of the totalmomentum of the proton which is carried by gluons at high Q2 and the Gottfried sum rule are computed. The results are in good agreement with those expected.

Keywords

, proton structure function, gluon and pseudoscalar meson clouds, constituent quark
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@article{paperid:1038752,
author = {Abolfazl Mirjalili and Mohammad Mahdi Yazdan Panah and Taghavi Shahri, Seyyedeh Fatemeh and Karim Ghorbani},
title = {Low Q2 proton structure function, using gluon and pseudoscalar meson clouds in the constituent quark framework},
journal = {Journal of Physics G: Nuclear and Particle Physics},
year = {2010},
volume = {37},
number = {10},
month = {July},
issn = {0954-3899},
pages = {1--15},
numpages = {14},
keywords = {proton structure function; gluon and pseudoscalar meson clouds;constituent quark},
}

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%0 Journal Article
%T Low Q2 proton structure function, using gluon and pseudoscalar meson clouds in the constituent quark framework
%A Abolfazl Mirjalili
%A Mohammad Mahdi Yazdan Panah
%A Taghavi Shahri, Seyyedeh Fatemeh
%A Karim Ghorbani
%J Journal of Physics G: Nuclear and Particle Physics
%@ 0954-3899
%D 2010

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