Dynamical Symmetry Breaking in the Sea of the Nucleon

Details Dynamical Symmetry Breaking in the Sea of the Nucleon Dynamical Symmetry Breaking in the Sea of the Nucleon

2000-05-04

arxiv.org/abs/hep-ph/0005043v2

Phys.Rev.Lett.85:2892-2894,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, version to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.85.2892

We derive the non-analytic chiral behavior of the flavor asymmetry dbar - ubar. Such behavior is a unique characteristic of Goldstone boson loops in chiral theories, including QCD, and establishes the unambiguous role played by the Goldstone boson cloud in the sea of the proton. Generalizing the results to the SU(3) sector, we show that strange chiral loops require that the s - sbar distribution be non-zero.

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