Chiral symmetry and the charge asymmetry of the SS̄ distribution in a proton | Zendy

Matthias Burkardt | Zendy

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Chiral symmetry and the charge asymmetry of the SS̄ distribution in a proton

Author(s) -

Matthias Burkardt

Publication year - 1992

Publication title -

aip conference proceedings

Language(s) - English

Resource type - Conference proceedings

SCImago Journal Rank - 0.177

H-Index - 75

eISSN - 1551-7616

pISSN - 0094-243X

DOI - 10.1063/1.41526

Subject(s) - quark , asymmetry , physics , charge (physics) , polarization (electrochemistry) , proton , particle physics , chiral symmetry , symmetry (geometry) , nuclear physics , charge density , quantum electrodynamics , quantum mechanics , chemistry , geometry , mathematics

Based on a simple K‐cloud model, as well as the Gross‐Neveu and the Nambu‐Jona‐Lasinio model, it is predicted that the ss sea in a proton is not charge symmetric at large Bjorken‐x. The s quarks are shifted to larger values of xbj than the s quarks. Furthermore these large xbj s quarks carry a negative polarization.

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