Universal relations between non-Gaussian fluctuations in heavy-ion collisions
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PhysRevD.95.014038.pdf
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Author(s)
Deng, Jian
Kohyama, Hiroaki
Labun, Lance
Chen, Jiunn-Wei
Date Issued
January 2017
Journal
Physical Review D
Publisher
American Physical Society
Citation
Chen, Jiunn-Wei; Deng,Jian ; Kohyama,Hiroaki and Labun,Lance. "Universal relations between non-Gaussian fluctuations in heavy-ion collisions." Physical Review D 95, no. 014038 (January 2017): 1-7 © 2017 American Physical Society
Version
Final published version
Abstract
We show that universality near a critical end point implies a characteristic relation between third- and fourth-order baryon susceptibilities χ₃ and χ₄, resulting in a banana-shaped loop when χ₄ is plotted as a function of χ₃ along a freeze-out line. This result relies only on the derivative relation between χ₃ and χ₄, the enhancement of the correlation length and the scaling symmetry near a critical point, and the freeze-out line near the critical point not too parallel to the μ[subscript B] axis. Including the individual enhancements of χ₃ and χ₄ near a critical point, these features may be a consistent set of observations supporting the interpretation of baryon fluctuation data as arising from criticality.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.95.014038
