Nucleon structure functions and longitudinal spin asymmetries

E-ISSN： 2100-014x|137|issue|05001-05001

ISSN： 2100-014x

Source： EPJ Web of Conference, Vol.137, Iss.issue, 2017-03, pp. : 05001-05001

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Abstract

The chiral constituent quark model (χCQM) has been used to analyse the phenomenological dependence of the spin independent (F₁^{p, n} and F₂^{p, n}) and the spin dependent (g₂^{p, n}) structure functions of the nucleon on the the Bjorken scaling variable x. The implication of the presence of the sea quarks has been discussed for the p and n longitudinal spin asymmetries (A₁^p (x)and A₁ⁿ (x) ratio of polarized to unpolarized quark distribution functions for up and down quarks in the p and n ${{\Delta {u^p}(x)} \over {{u^p}(x)}}$, ${{\Delta {d^p}(x)} \over {{d^p}(x)}}$, ${{\Delta {u^n}(x)} \over {{u^n}(x)}}$, and ${{\Delta {d^n}(x)} \over {{d^n}(x)}}$. The results have been compared with the recent available experimental observations.