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Net charge fluctuations inAu+Aucollisions atsNN=130GeV
- Source :
- Physical Review C. 68
- Publication Year :
- 2003
- Publisher :
- American Physical Society (APS), 2003.
-
Abstract
- We present the results of charged particle fluctuations measurements in Au+Au collisions at rootS(NN)=130 GeV using the STAR detector. Dynamical fluctuations measurements are presented for inclusive charged particle multiplicities as well as for identified charged pions, kaons, and protons. The net charge dynamical fluctuations are found to be large and negative providing clear evidence that positive and negative charged p article production is correlated within the pseudorapidity range investigated. Correlations are smaller than expected based on model-dependent predictions for a resonance gas or a quark-gluon gas which undergoes fast hadronization and freeze-out. Qualitative agreement is found with comparable scaled p+p measurements and a heavy ion jet interaction generation model calculation based on independent particle collisions, although a small deviation from the 1/N scaling dependence expected from this model is observed.
- Subjects :
- Physics
Nuclear and High Energy Physics
Range (particle radiation)
010308 nuclear & particles physics
Jet (particle physics)
01 natural sciences
7. Clean energy
Resonance (particle physics)
Charged particle
Hadronization
Nuclear physics
Pion
Pseudorapidity
0103 physical sciences
Atomic physics
010306 general physics
STAR detector
Subjects
Details
- ISSN :
- 1089490X and 05562813
- Volume :
- 68
- Database :
- OpenAIRE
- Journal :
- Physical Review C
- Accession number :
- edsair.doi...........2ca33bbb13815e662683fa8882c96eca