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Antiproton Production in 11.5 A GeV/c Au+Pb Nucleus-Nucleus Collisions

E864 Collaboration·T. A. Armstrong et al
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Abstract

We present the first results from the E864 collaboration on the production of antiprotons in 10% central 11.5 A GeV/c Au+Pb nucleus collisions at the Brookhaven AGS. We report invariant multiplicities for antiproton production in the kinematic region 1.4<y<2.2 and 50<p_T<300 MeV/c, and compare our data with a first collision scaling model and previously published results from the E878 collaboration. The differences between the E864 and E878 antiproton measurements and the implications for antihyperon production are discussed.

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E864 Collaboration, T. A. Armstrong et al. 1997-09-18. Antiproton Production in 11.5 A GeV/c Au+Pb Nucleus-Nucleus Collisions. https://doi.org/10.1103/physrevlett.79.3351

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