Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy
Joint Authors
Liu, F.-H.
Gao, Li-Na
Lacey, Roy A.
Source
Advances in High Energy Physics
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-12
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Experimental results of the rapidity distributions of negatively charged pions produced in proton-proton ( p - p ) and beryllium-beryllium (Be-Be) collisions at different beam momentums, measured by the NA61/SHINE Collaboration at the super proton synchrotron (SPS), are described by a revised (three-source) Landau hydrodynamic model.
The squared speed-of-sound parameter c s 2 is then extracted from the width of rapidity distribution.
There is a local minimum (knee point) which indicates a softest point in the equation of state (EoS) appearing at about 40 A GeV/ c (or 8.8 GeV) in c s 2 excitation function (the dependence of c s 2 on incident beam momentum (or center-of-mass energy)).
This knee point should be related to the searching for the onset of quark deconfinement and the critical point of quark-gluon plasma (QGP) phase transition.
American Psychological Association (APA)
Liu, F.-H.& Gao, Li-Na& Lacey, Roy A.. 2016. Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy. Advances in High Energy Physics،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1095288
Modern Language Association (MLA)
Liu, F.-H.…[et al.]. Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy. Advances in High Energy Physics No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1095288
American Medical Association (AMA)
Liu, F.-H.& Gao, Li-Na& Lacey, Roy A.. Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy. Advances in High Energy Physics. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1095288
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1095288