Strangeness Production at the HERA-B Experiment

Details Strangeness Production at the HERA-B Experiment Strangeness Production at the HERA-B Experiment

2004-05-15

arxiv.org/abs/hep-ex/0405039v1

Physics

High Energy Physics

High Energy Physics - Experiment

4 pages, 6 figures, Proceedings of the Conference:"QCD and High Energy Hadronic Interactions", XXXIXth Rencontres de Moriond,

Scientific paper

HERA-B is a fixed target experiment at the 920 GeV HERA proton beam at DESY which uses a variety of nuclear targets. During the last data taking period from Nov. 2002 to Feb. 2003, 200 million minimum bias events were recorded. A large sample of V^0(K_zero, Lambda_zero, Lambda_zero_bar), approximately 20000 cascade hyperons Xi^(-/+) and 1200 Omega^(-/+) over low background were reconstructed using these data. About 1 million K^*(892) --> K pi and 60,000 phi(1020) --> K^+K^- decays in central production $(-0.15 < x_F < 0.1, 0.5 < p_t^2 < 12.1 (GeV/c)^2 were analyzed. Preliminary results for differential p_t^2 spectra, atomic numeber dependence and anti-particle to particle ratios are presented.

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