Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-08-27
"Gribov-80 Memorial Workshop on Quantum Chromodynamics and Beyond" edited by Y.L. Dokshitzer, P. Levai, and J. Nyiri, World Sc
Physics
High Energy Physics
High Energy Physics - Phenomenology
9 pages. Presented at the Gribov-80 Memorial Workshop on Quantum Chromodynamics and Beyond held at ICTP, Trieste in May 2010.
Scientific paper
The effects of nonperturbatively generated ``quark sea'' have been investigated to determine the flavor structure of the octet baryons. The chiral constituent quark model ($\chi$CQM), which is known to provide a satisfactory explanation of the proton spin and related issues in the nonperturbative regime, is able to explain the qualitative generation of the requisite amount of quark sea. The importance of quark sea has been studied at different values of the Bjorken scaling variable $x$ by including it phenomenologically in the sea quark distribution functions. The results for the quark sea asymmetries like $\bar d(x)-\bar u(x)$, $\bar d(x)/\bar u(x)$ and Gottfried integral for the octet baryons strengthen the significance of quark sea at lower values of $x$.
Dahiya Harleen
Sharma Neetika
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