Baryon asymmetry of the proton sea at low-x

被引：28

作者：

Kopeliovich, B

Povh, B

机构：

[1] Max-Planck Institut für Kernphysik, D-69029 Heidelberg

[2] Joint Institute for Nuclear Research, Laboratory of Nuclear Problems, Dubna

来源：

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS | 1997年 / 75卷 / 04期

关键词：

D O I：

10.1007/s002880050515

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

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 x 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 pet-formed in ep or gamma p interactions at HERA, where x similar to 10(-5) are reachable, smaller than at any of existing or planned proton colliders.

引用

页码：693 / 699

页数：7

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