CERN Accelerating science

Preprint
Report number	nucl-ex/0610030
Title	Baryon - baryon correlations in Au+Au collisions at sqrt(sNN)= 62 GeV and sqrt(sNN)= 200 GeV, measured in the STAR experiment at RHIC
Author(s)	Gos, H P (CERN)
Publication	2006
Imprint	21 Oct 2006
Number of pages	13
Published in:	Nukleonika
Presented at	18th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Budapest, Hungary, 4 - 9 Aug 2005
Subject category	Nuclear Physics - Experiment
Abstract	Particle correlations at small relative velocities can be used to study the space-time evolution of hot and expanding system created in heavy ion collisions. Baryon and antibaryon source sizes extracted from baryon-baryon correlations complement the information deduced from the correlation studies of identical pions. Correlations of non-identical particles are sensitive also to the space-time asymmetry of their emission. High statistics data set of STAR experiment allows us to present the results of baryon-baryon correlation measurements at various centralities and energies, as well as to take carefully into account the particle identification probability and the fraction of primary baryons and antibaryons. Preliminary results show significant contribution of annihilation channel in baryon-antibaryon correlations.
Other source	Inspire