Title of article
Enhanced antiproton production in Pb(160 A GeV)+Pb reactions: evidence for quark gluon matter?
Author/Authors
M. Bleicher، نويسنده , , M. Belkacem، نويسنده , , S.A. Bass، نويسنده , , S. Soff، نويسنده , , H. St?cker، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2000
Pages
6
From page
133
To page
138
Abstract
The centrality dependence of the antiproton per participant ratio is studied in Pb(160 A GeV)+Pb reactions. Antiproton production in collisions of heavy nuclei at the CERN/SPS seems considerably enhanced as compared to conventional hadronic physics, given by the antiproton production rates in pp and antiproton annihilation in pp reactions. This enhancement is consistent with the observation of strong in-medium effects in other hadronic observables and may be an indication of partial restoration of chiral symmetry.
Journal title
PHYSICS LETTERS B
Serial Year
2000
Journal title
PHYSICS LETTERS B
Record number
913105
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