Strange sea asymmetry in nucleons

Details Strange sea asymmetry in nucleons Strange sea asymmetry in nucleons

2002-01-18

arxiv.org/abs/hep-ph/0201175v2

Int.J.Mod.Phys. A18 (2003) 1403-1408

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages and no figures, Talk presented at the Third Circum-Pan-Pacific Symposium on "High Energy Spin Physics", Oct. 8-13, 200

Scientific paper

10.1142/S0217751X03014770

We evaluate the medium effects in nucleon which can induce an asymmetry of
the strange sea. The short-distance effects determined by the weak interaction
can give rise to $\delta m\equiv \Delta m_s-\Delta m_{\bar s}$ where $\Delta
m_{s(\bar s)}$ is the medium-induced mass of strange quark by a few KeV at
most, but the long-distance effects by strong interaction could be sizable.

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