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Rapidity dependence of charged antihadron to hadron ratios in Au+Au collisions at $\sqrt{S_{NN}}$=200GeV
- Source :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2003, 90, pp.102301-4
- Publication Year :
- 2003
- Publisher :
- HAL CCSD, 2003.
-
Abstract
- We present ratios of the numbers of charged antihadrons to hadrons (pions, kaons, and protons) in Au+Au collisions at sqrt[s(NN)]=200 GeV as a function of rapidity in the range y=0-3. While the ratios at midrapidity are approaching unity, the K(-)/K(+) and p;/p ratios decrease significantly at forward rapidities. An interpretation of the results within the statistical model indicates a reduction of the baryon chemical potential from mu(B) approximately 130 MeV at y=3 to mu(B) approximately 25 MeV at y=0.
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2003, 90, pp.102301-4
- Accession number :
- edsair.pmid.dedup....8f71deeb2a917a61d7fbc958e522a7bd