CPOD International Workshop at GSI Darmstadt
July 9 - 13, 2007 -
Registered Participants Information

Title:	Dr.
Last Name:	Melkumov
First Name:	Georgy
E-Mail:	Georgui.Melkoumovcern.ch
Affiliation for Badge:	JINR, Dubna
Institute:	Joint Institute for Nuclear Research
Address (Street):	Russia, Moscow region, Dubna, Juolio Curie 6
Postal Code, City:	141980, Dubna, Moscow region, Russia
Country:	Russia
Phone:	+7 49621 65583
Fax:	+7 49621 65815
Arrival Date:	July 8
Departure Date:	July 14
Hotel Information:	GSI Guesthouse and Hostel
Payment:	Cash at the conference site
Contribution
Author(s):	V.I.Kolesnikov and G.L.Melkumov for the NA49 Collaboration
Institute(s):	Joint Institute for Nuclear Research (JINR Dubna)
Title:	Recent results on (anti)nucleus and (anti)hyperon production in nucleus-nucleus collisions at CERN SPS energies
Abstract:	The NA49 experiment has collected comprehensive data on particle production in nucleus-nucleus collisions at SPS beam energies between 20A GeV and 158A GeV, the critical energy domain where the expected phase transition to a deconfined phase seems to occur. New data presented in the talk will include the rapidity and transverse mass distributions of helium-3, triton, deuteron and anti-deuteron as well as those for proton and anti-proton. The dependence of the yield ratios and the inverse slope parameter of the m_t spectra on the collision energy and centrality, and the mass number of the produced nuclei will be discussed within coalescence and statistical approaches. Analysis of the total multiplicity exhibits remarkable agreement between the measured yield for helium-3 and those predicted by the Statistical Hadronization Model. In addition new results on Lambda and anti-Lambda as well as Xi and anti-Xi production in minimum bias Pb+Pb reactions at 40A GeV and 158A GeV and central C+C, Si+Si and Pb+Pb collisions at CERN SPS energies will be presented. The system size dependence of the yields of these hyperons was analysed to determine the evolution of strangeness enhancement relative to elementary p+p collisions. The measured data were also used to evaluate the rapidity distributions of net-baryons at SPS energies and to compare with the results from the AGS and the RHIC for central Pb+Pb (Au+Au) collisions.