Baryon number fluctuations and the phase structure in the PNJL model
Abstract We investigate the kurtosis and skewness of net-baryon number fluctuations in the Polyakov loop extended Nambu–Jona-Lasinio (PNJL) model, and discuss the relations between fluctuation distributions and the phase structure of quark-gluon matter. The calculation shows that the traces of chira...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-02-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | http://link.springer.com/article/10.1140/epjc/s10052-018-5636-0 |
| _version_ | 1819088856646942720 |
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| author | Guo-yun Shao Zhan-duo Tang Xue-yan Gao Wei-bo He |
| author_facet | Guo-yun Shao Zhan-duo Tang Xue-yan Gao Wei-bo He |
| author_sort | Guo-yun Shao |
| collection | DOAJ |
| description | Abstract We investigate the kurtosis and skewness of net-baryon number fluctuations in the Polyakov loop extended Nambu–Jona-Lasinio (PNJL) model, and discuss the relations between fluctuation distributions and the phase structure of quark-gluon matter. The calculation shows that the traces of chiral and deconfinement transitions can be effectively reflected by the kurtosis and skewness of net-baryon number fluctuations not only in the critical region but also in the crossover region. The contour plot of baryon number kurtosis derived in the PNJL model can qualitatively explain the behavior of net-proton number kurtosis in the STAR beam energy scan experiments. Moreover, the three-dimensional presentations of the kurtosis and skewness in this study are helpful to understand the relations between baryon number fluctuations and QCD phase structure. |
| first_indexed | 2024-12-21T21:58:41Z |
| format | Article |
| id | doaj.art-83ffe22f10aa4da485dd25fa5f1d40a1 |
| institution | Directory Open Access Journal |
| issn | 1434-6044 1434-6052 |
| language | English |
| last_indexed | 2024-12-21T21:58:41Z |
| publishDate | 2018-02-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-83ffe22f10aa4da485dd25fa5f1d40a12022-12-21T18:48:54ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60441434-60522018-02-017821710.1140/epjc/s10052-018-5636-0Baryon number fluctuations and the phase structure in the PNJL modelGuo-yun Shao0Zhan-duo Tang1Xue-yan Gao2Wei-bo He3School of Science, Xi’an Jiaotong UniversitySchool of Science, Xi’an Jiaotong UniversitySchool of Science, Xi’an Jiaotong UniversitySchool of Science, Xi’an Jiaotong UniversityAbstract We investigate the kurtosis and skewness of net-baryon number fluctuations in the Polyakov loop extended Nambu–Jona-Lasinio (PNJL) model, and discuss the relations between fluctuation distributions and the phase structure of quark-gluon matter. The calculation shows that the traces of chiral and deconfinement transitions can be effectively reflected by the kurtosis and skewness of net-baryon number fluctuations not only in the critical region but also in the crossover region. The contour plot of baryon number kurtosis derived in the PNJL model can qualitatively explain the behavior of net-proton number kurtosis in the STAR beam energy scan experiments. Moreover, the three-dimensional presentations of the kurtosis and skewness in this study are helpful to understand the relations between baryon number fluctuations and QCD phase structure.http://link.springer.com/article/10.1140/epjc/s10052-018-5636-0 |
| spellingShingle | Guo-yun Shao Zhan-duo Tang Xue-yan Gao Wei-bo He Baryon number fluctuations and the phase structure in the PNJL model European Physical Journal C: Particles and Fields |
| title | Baryon number fluctuations and the phase structure in the PNJL model |
| title_full | Baryon number fluctuations and the phase structure in the PNJL model |
| title_fullStr | Baryon number fluctuations and the phase structure in the PNJL model |
| title_full_unstemmed | Baryon number fluctuations and the phase structure in the PNJL model |
| title_short | Baryon number fluctuations and the phase structure in the PNJL model |
| title_sort | baryon number fluctuations and the phase structure in the pnjl model |
| url | http://link.springer.com/article/10.1140/epjc/s10052-018-5636-0 |
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