English

Nonperturbative Quark Sea Asymmetries

High Energy Physics - Phenomenology 2017-08-23 v1

Abstract

The effects of nonperturbatively generated ``quark sea'' have been investigated to determine the flavor structure of the octet baryons. The chiral constituent quark model (χ\chiCQM), 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 xx by including it phenomenologically in the sea quark distribution functions. The results for the quark sea asymmetries like dˉ(x)uˉ(x)\bar d(x)-\bar u(x), dˉ(x)/uˉ(x)\bar d(x)/\bar u(x) and Gottfried integral for the octet baryons strengthen the significance of quark sea at lower values of xx.

Keywords

Cite

@article{arxiv.1008.4645,
  title  = {Nonperturbative Quark Sea Asymmetries},
  author = {Harleen Dahiya and Neetika Sharma},
  journal= {arXiv preprint arXiv:1008.4645},
  year   = {2017}
}

Comments

9 pages. Presented at the Gribov-80 Memorial Workshop on Quantum Chromodynamics and Beyond held at ICTP, Trieste in May 2010. (To appear in the World Scientific Proceedings)

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