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dc.creatorPal, S.
dc.creatorKo, Che Ming
dc.creatorLin, ZW.
dc.date.accessioned2011-09-13T21:25:42Z
dc.date.available2011-09-13T21:25:42Z
dc.date.issued2001
dc.identifier.citationS. Pal, Che Ming Ko and Z. W. Lin. Phys.Rev.C 64 042201 2001. "Copyright (2001) by the American Physical Society."en
dc.identifier.urihttp://dx.doi.org/10.1103/PhysRevC.64.042201
dc.identifier.urihttps://hdl.handle.net/1969.1/126911
dc.descriptionJournals published by the American Physical Society can be found at http://publish.aps.org/en
dc.description.abstractUsing a relativistic transport model for heavy ion collisions at energies that Lire below the threshold for kaon and antikaon production in nucleon-nucleon collisions, we study how their abundances approach the canonical equilibrium during the collisions. We find that kaons are far from chemical equilibrium at the initial and high density stage, and they approach equilibrium only during the expansion stage of the collisions when their production rate is small and becomes comparable to their annihilation rate. In contrast, antikaons approach chemical equilibrium much earlier but eventually fall out of equilibrium again as a result of their large annihilation cross sections in nuclear matter.en
dc.language.isoen
dc.publisherAmerican Physical Society
dc.subjectSUBTHRESHOLD KAON PRODUCTIONen
dc.subjectNUCLEUS-NUCLEUS COLLISIONSen
dc.subjectUEHLING-UHLENBECK MODELen
dc.subjectPB PLUS PBen
dc.subjectANTIKAON PRODUCTIONen
dc.subjectCHEMICALen
dc.subjectEQUILIBRATIONen
dc.subjectK PRODUCTIONen
dc.subjectEQUATIONen
dc.subjectMATTERen
dc.subjectENERGIESen
dc.subjectPhysicsen
dc.titleStrangeness equilibration in heavy ion collisionsen
dc.typeArticleen
local.departmentPhysics and Astronomyen


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