Pentaquark baryon production in nuclear reactions

Details Pentaquark baryon production in nuclear reactions Pentaquark baryon production in nuclear reactions

2004-10-15

arxiv.org/abs/nucl-th/0410068v1

Physics

Nuclear Physics

Nuclear Theory

8 pages, 6 figures, talk presented at International Workshop Pentaquark04, July 20-24, 2004 at SPring-8, Japan

Scientific paper

Using a hadronic model with empirical coupling constants and form factors, we have evaluated the cross sections for the production of exotic pentaquark $\Theta^+$ and/or $\Xi_5^+$ and $\Xi_5^{--}$ in reactions induced by photons, nucleons, pions, and kaons on nucleon targets. We have also predicted the $\Theta^+$ yield in relativistic heavy ion collisions using a kinetic model that takes into account both $\Theta^+$ production from the coalescence of quarks and antiquarks in the quark-gluon plasma and the effects due to subsequent hadronic absorption and regeneration.

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