Centrality and collision system dependence of antiproton production from p+A to Au+Au collisions at AGS Energies

L Ahle,H Yao,S Gushue,W Eldredge,J Shea,C Chasman,K Kurita,J Engelage,K Ashktorab,V Cianciolo,S Ueno-Havashi,R Seto,S Nagamiya,B Moskowitz,K Yagi,M Moulson,Y Akiba,M D Baker ,G Heintzelman,H Sako,R S Hayano ,Y Miake,H Hamagaki,R Debbe,R A Soltz ,G Xu ,F Wang,E G Judd ,K Shigaki,M.N Namboodiri,E Oliver Garcia ,J C Dunlop ,S G Steadman ,J B Cumming ,M J Tannenbaum ,G S F Stephans ,W A Zajc ,B Cole ,James Chang ,C A Ogilvie ,J.w Olness ,Y Wu,T.C Sangster,H J Crawford ,Jon C Luke ,C Müentz ,H C Britt ,J.-H Lee,J H Kang ,L P Remsberg ,A C Mignerey ,D Beavis,Eun-Jung Kim ,Y Y Chu ,L F Hansen ,Z Chen,J H Thomas ,A Kumagai,S Y Fung ,H Xiang,Fan Zhu

doi:10.1016/s0375-9474(98)00346-7

Centrality and collision system dependence of antiproton production from p+A to Au+Au collisions at AGS Energies

L Ahle, H Yao + Show 59 more

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https://doi.org/10.1016/s0375-9474(98)00346-7

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Journal: Nuclear Physics A	Publication Date: Aug 1, 1998
Citations: 4

Affiliation: Massachusetts Institute of Technology, Brookhaven National Laboratory, University of California, Riverside, University of Maryland, College Park, University of Tsukuba, University of California, Berkeley, Oak Ridge National Laboratory, High Energy Accelerator Research Organization, The University of Tokyo, Columbia University

#Au Collisions #Transverse-mass Spectra + Show 8 more

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Abstract

Antiproton production in 11.7 A·GeV/c Au+Au collisions over a wide transverse-mass coverage was studied in the AGS-E866. The inverse slope parameter increases rapidly as a function of centrality. Antiproton yields in Si+A and Au+Au collisions are consistent with the scaling with the 2/3 power of the number of participant nucleons. Transverse-mass spectra are similar to those of protons from peripheral to central Au+Au collisions.

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