Proton-lambda correlations in central Au+Au collisions at sqrt (s_NN)=200 GeV

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dc.creatorSTAR Collaboration
dc.creatorAdams, J.
dc.date2005-11-01
dc.date2006-12-09
dc.date.accessioned2026-07-07T11:28:15Z
dc.date.available2026-07-07T11:28:15Z
dc.descriptionWe report on p-Lambda, p-Lambda bar, p bar-Lambda and p bar-Lambda bar correlation functions constructed in central Au-Au collisions at sqrt(s_NN)=200GeV by the STAR experiment at RHIC. The proton and lambda source size is inferred from the p-Lambda and p bar-Lambda bar correlation functions. They are found to be smaller than the pion source size also measured by the STAR detector. This could be a consequence of the collision fireball's collective expansion. The p-Lambda bar and p bar-Lambda correlations, which are measured for the first time, exhibit a large anti-correlation. Annihilation channels and/or a negative real part of the spin-averaged scattering length must be included in the final-state interactions calculation to reproduce the measured correlation function.
dc.description8 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/nucl-ex/0511003
dc.identifierhttp://arxiv.org/abs/nucl-ex/0511003
dc.identifierPhys.Rev.C74:064906,2006
dc.identifierdoi:10.1103/PhysRevC.74.064906
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/196383
dc.subjectNuclear Experiment
dc.titleProton-lambda correlations in central Au+Au collisions at sqrt (s_NN)=200 GeV
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