Quenching of resonance production in heavy-ion collisions at 1-2 A GeV

Details Quenching of resonance production in heavy-ion collisions at 1-2 A GeV Quenching of resonance production in heavy-ion collisions at 1-2 A GeV

2001-03-07

arxiv.org/abs/nucl-th/0103019v2

Nucl.Phys.A696:747-760,2001

Physics

Nuclear Physics

Nuclear Theory

12 pages, 12 figures; modified text, accepted in Nucl. Phys. A

Scientific paper

10.1016/S0375-9474(01)01216-7

We study the pion production in heavy-ion collisions at SIS energies within the coupled resonance BUU model. The standard calculation overpredicts the pion multiplicity in the central Au+Au collision at 1 A GeV by about a factor of 2, which is interpreted as a signature for the quenching of the resonance production/absorption in nucleon-nucleon collisions at high nuclear density. Results of the calculations taking into account a specific form of quenching are presented for pion spectra from light and heavy systems as well as for the pion in-plane and out-of-plane flow.

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