Chinese Physics C > 2007, Vol. 31 > Issue(12): 1145-1148

Search for Critical Behaviors by RHIC-PHENIX

K.Homma^,

Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan

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Integrated two particle correlation functions have been extracted from charge particle multiplicity density fluctuations in pseudorapidity space by analyzing Au+Au collision events at s _NN=200GeV taken by RHIC-PHENIX. The correlation lengths as a function of the number of participants N _pindicate a non monotonic increase at around N _p=100 and the corresponding energy density based on the Bjorken picture is ε _Bjτ～2.5GeV.fm ^－2. This could be a symptom of a critical behavior.

References

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K.Homma. Search for Critical Behaviors by RHIC-PHENIX[J]. Chinese Physics C, 2007, 31(12): 1145-1148.

K.Homma. Search for Critical Behaviors by RHIC-PHENIX[J]. Chinese Physics C, 2007, 31(12): 1145-1148. shu

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Received: 2007-07-17
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Search for Critical Behaviors by RHIC-PHENIX

K.Homma^,

Corresponding author:K.Homma,

Graduate School of Science, Hiroshima University, Higashi-Hiroshima, Japan

Received Date:2007-07-17
Accepted Date:1900-01-01
Available Online:2007-12-05

Abstract:Integrated two particle correlation functions have been extracted from charge particle multiplicity density fluctuations in pseudorapidity space by analyzing Au+Au collision events at s_NN=200GeV taken by RHIC-PHENIX. The correlation lengths as a function of the number of participants N_pindicate a non monotonic increase at around N_p=100 and the corresponding energy density based on the Bjorken picture is ε_Bjτ～2.5GeV.fm^－2. This could be a symptom of a critical behavior.