Baryon Asymmetry of the Proton Sea at Low $x$

Details Baryon Asymmetry of the Proton Sea at Low $x$ Baryon Asymmetry of the Proton Sea at Low $x$

1996-07-31

arxiv.org/abs/hep-ph/9607486v1

Z.Phys.C75:693-699,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, LaTeX type, including 5 figures

Scientific paper

10.1007/s002880050515

We predict a nonvanishing baryon asymmetry of the proton sea at low $x$. It is expected to be about $7\%$ and nearly $x$-independent at $x < 0.5 \times 10^{-3}$. The asymmetry arises from the baryon-antibaryon component of the Pomeron, rather than from the valence quarks of the proton, which are wide believed carriers of baryon number. Experimental study of $x$-distribution of the baryon asymmetry of the proton sea can be performed in $ep$ or $\gamma p$ interactions at HERA, where $x\sim 10^{-5}$ are reachable, smaller than at any of existing or planned proton colliders.

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