English

Hypernucleus formation and strangeness production in proton-nucleus reactions

Nuclear Theory 2007-05-23 v1

Abstract

We study the production of Λ\Lambda hyperons in p+Ap + A reactions on the basis of a BUU transport approach from 1.1 to 1.9 GeV and evaluate the properties of the hypernuclei produced in particular with respect to their momentum distribution in the laboratory frame. Due to elastic ΛN\Lambda N scattering large cross sections for the production of heavy hypernuclei in the order of 100 - 400 μb\mu b are predicted for p + U at 1.5 - 1.9 GeV laboratory energy. Whereas the K+YK^+ Y production channels are expected to be only slightly modified in the nuclear medium, the antikaon production should be enhanced substantially due to large attractive KK^- selfenergies in dense matter. We predict an enhancement of the inclusive KK^- yield in p + 208^{208}Pb collisions of a factor of \approx 10 at 2 GeV laboratory energy.

Keywords

Cite

@article{arxiv.nucl-th/9709032,
  title  = {Hypernucleus formation and strangeness production in proton-nucleus reactions},
  author = {W. Cassing and Z. Rudy and L. Jarczyk and B. Kamys and P. Kulessa and O. W. B. Schult and A. Sibirtsev and A. Strzałkowski},
  journal= {arXiv preprint arXiv:nucl-th/9709032},
  year   = {2007}
}

Comments

10 pages, LaTeX, including 5 postscript figures, to be published in the Proceedings of the 8th International Conference on Nuclear Reaction Mechanisms, Varenna, June 9-14, 1997, ed. by E. Gadioli