Bin Zhang et al 2000 J. Phys. G: Nucl. Part. Phys. 26 1665 doi:10.1088/0954-3899/26/11/303
Bin Zhang1,2, C M Ko1, Bao-An Li2 and Andrew T Sustich2
Show affiliationsThe directed flow of neutral strange particles in heavy-ion collisions at the alternating gradient synchrotron (AGS) at the Brookhaven National Laboratory is studied in the ART transport model. Using a lambda mean-field potential that is (2/3) of the nucleon potential as predicted by the constituent quark model, lambdas are found to flow with protons but with a smaller flow parameter as observed in experiments. For kaons, their repulsive potential, which is calculated from the impulse approximation using the measured kaon-nucleon scattering length, leads to a smaller antiflow than that shown in the E895 data. The implications of this discrepancy are discussed.
25.75.Dw Particle and resonance production
Issue 11 (November 2000)
Received 15 May 2000, in final form 22 August 2000
Bin Zhang et al 2000 J. Phys. G: Nucl. Part. Phys. 26 1665
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