Soft pions at high energy as an origin of flavor asymmetry of the light sea quarks in the nucleon

Details Soft pions at high energy as an origin of flavor asymmetry of the light sea quarks in the nucleon Soft pions at high energy as an origin of flavor asymmetry of the light sea quarks in the nucleon

1999-12-25

arxiv.org/abs/hep-ph/9912507v1

Prog.Theor.Phys. 103 (2000) 127-134

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 2 figures, to be published in the Prog.Theor.Phys

Scientific paper

10.1143/PTP.103.127

By using the soft pion theorem in the inclusive reactions, soft pions'
contribution to the structure function $F_2$ in the nucleon is estimated. It is
shown that this contribution produces such a large flavor asymmetry in the
light sea quark distributions that it gives about $30\sim 50 %$ of the NMC
deficit in the Gottfried sum.

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