Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy
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-sou...
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Wiley
2016-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2016/9467194 |
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| author | Fu-Hu Liu Li-Na Gao Roy A. Lacey |
| author_facet | Fu-Hu Liu Li-Na Gao Roy A. Lacey |
| author_sort | Fu-Hu Liu |
| collection | DOAJ |
| description | 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 cs2 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 40A GeV/c (or 8.8 GeV) in cs2 excitation function (the dependence of cs2 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. |
| format | Article |
| id | doaj-art-da964ca9eae144cc95c5ccd26c71f569 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-da964ca9eae144cc95c5ccd26c71f5692025-02-03T01:29:14ZengWileyAdvances in High Energy Physics1687-73571687-73652016-01-01201610.1155/2016/94671949467194Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision EnergyFu-Hu Liu0Li-Na Gao1Roy A. Lacey2Institute of Theoretical Physics, Shanxi University, Taiyuan, Shanxi 030006, ChinaInstitute of Theoretical Physics, Shanxi University, Taiyuan, Shanxi 030006, ChinaDepartments of Chemistry & Physics, Stony Brook University, Stony Brook, NY 11794, USAExperimental 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 cs2 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 40A GeV/c (or 8.8 GeV) in cs2 excitation function (the dependence of cs2 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.http://dx.doi.org/10.1155/2016/9467194 |
| spellingShingle | Fu-Hu Liu Li-Na Gao Roy A. Lacey Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy Advances in High Energy Physics |
| title | Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy |
| title_full | Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy |
| title_fullStr | Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy |
| title_full_unstemmed | Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy |
| title_short | Searching for Minimum in Dependence of Squared Speed-of-Sound on Collision Energy |
| title_sort | searching for minimum in dependence of squared speed of sound on collision energy |
| url | http://dx.doi.org/10.1155/2016/9467194 |
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