Flavor asymmetry of the nucleon sea in an unquenched quark model

Details Flavor asymmetry of the nucleon sea in an unquenched quark model Flavor asymmetry of the nucleon sea in an unquenched quark model

2008-09-12

arxiv.org/abs/0809.2299v1

Proceedings of the 11th Workshop on the Physics of Excited Nucleons, NSTAR 2007, Springer (2008), 166-168

Physics

Nuclear Physics

Nuclear Theory

3 pages, 1 figure, 1 table. NSTAR2007, Proceedings of the 11th Workshop on the Physics of Excited Nucleons, Springer, 2008

Scientific paper

We discuss the flavor asymmetry of the nucleon in an unquenched quark model
for baryons in which the effects of quark-antiquark pairs (u anti-u, d anti-d
and s anti-s) are taken into account in an explicit form. It is shown that the
inclusion of q anti-q pairs leads to an excess of anti-d over anti-u quarks in
the proton.

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