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On the Higher Moments of Particle Multiplicity, Chemical Freeze-Out, and QCD Critical Endpoint
Author
Source
Advances in High Energy Physics
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-22, 22 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-07-18
Country of Publication
Egypt
No. of Pages
22
Main Subjects
Abstract EN
We calculate the first six nonnormalized moments of particle multiplicity within the framework of the hadron resonance gas model.
In terms of the lower order moments and corresponding correlation functions, general expressions of higher order moments are derived.
Thermal evolution of the first four normalized moments and their products (ratios) are studied at different chemical potentials, so that it is possible to evaluate them at chemical freeze-out curve.
It is found that a nonmonotonic behaviour reflecting the dynamical fluctuation and strong correlation of particles starts to appear from the normalized third order moment.
We introduce novel conditions for describing the chemical freeze-out curve.
Although the hadron resonance gas model does not contain any information on the criticality related to the chiral dynamics and singularity in the physical observables, we are able to find out the location of the QCD critical endpoint at μ~350 MeV and temperature T~162 MeV.
American Psychological Association (APA)
Tawfik, A.. 2013. On the Higher Moments of Particle Multiplicity, Chemical Freeze-Out, and QCD Critical Endpoint. Advances in High Energy Physics،Vol. 2013, no. 2013, pp.1-22.
https://search.emarefa.net/detail/BIM-481988
Modern Language Association (MLA)
Tawfik, A.. On the Higher Moments of Particle Multiplicity, Chemical Freeze-Out, and QCD Critical Endpoint. Advances in High Energy Physics No. 2013 (2013), pp.1-22.
https://search.emarefa.net/detail/BIM-481988
American Medical Association (AMA)
Tawfik, A.. On the Higher Moments of Particle Multiplicity, Chemical Freeze-Out, and QCD Critical Endpoint. Advances in High Energy Physics. 2013. Vol. 2013, no. 2013, pp.1-22.
https://search.emarefa.net/detail/BIM-481988
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-481988