Detailed Balance and Sea-Quark Flavor Asymmetry of Proton

Details Detailed Balance and Sea-Quark Flavor Asymmetry of Proton Detailed Balance and Sea-Quark Flavor Asymmetry of Proton

2001-06-07

arxiv.org/abs/hep-ph/0106074v3

Phys.Lett.B523:260-264,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

significant changes in title and content, 12 latex pages, to appear in PLB

Scientific paper

10.1016/S0370-2693(01)01266-7

In this study, the proton is taken as an ensemble of quark-gluon Fock states. Using the principle of detailed balance, the probabilities of finding every Fock states of the proton are obtained without any parameter. A new origin of the light flavor sea quark asymmetry, i.e., $\bar{u} \not= \bar{d}$, is given as a pure statistical effect. It is found that $\bar{d}-\bar{u} \approx 0.124$, which is in surprisingly agreement with the experimental observation.

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