期刊
PHYSICAL REVIEW LETTERS
卷 102, 期 3, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.032301
关键词
-
资金
- University of Washington
- Department of Energy
- DOE [DE-FG0201ER41195]
We study the effect of the QCD critical point on non-Gaussian moments (cumulants) of fluctuations of experimental observables in heavy-ion collisions. We find that these moments are very sensitive to the proximity of the critical point, as measured by the magnitude of the correlation length xi. For example, the cubic central moment of multiplicity <(delta N)(3)>similar to xi(4.5) and the quartic cumulant <(delta N)(4)>(c)similar to xi(7). We estimate the magnitude of critical point contributions to non-Gaussian fluctuations of pion and proton multiplicities.
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