Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2016, Vol. 27 ›› Issue (6): 148 doi: 10.1007/s41365-016-0148-9

Special Issue: Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2016)

• Special Section on International Workshop on Nuclear Dynamics in Heavy-Ion Reaction (IWND2016) • Previous Articles     Next Articles

Quark mass scaling and properties of light-quark matter

Zhen-Yan Lu 1 ,Guang-Xiong Peng 1,2,3 , Shi-Peng Zhang 1  , Marco Ruggieri 1 , Vincenzo Greco 4,5   

  1. 1 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
    2 Theoretical Physics Center for Science Facilities, Institute of High Energy Physics, Beijing 100049, China
    3 Synergetic Innovation Center for Quantum Effects and Application, Hunan Normal University, Changsha 410081, China
    4 Department of Physics and Astronomy, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
    5 Laboratori Nazionali del Sud, INFN-LNS, Via S. Sofia 62, 95123 Catania, Italy
  • Contact: Guang-Xiong Peng E-mail:gxpeng@ucas.ac.cn
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (Nos. 11135011, 11475110, and 11575190) and the CAS Present’s International Fellowship Initiative (Nos. 2015PM008 and 2016VMA063).

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Zhen-Yan Lu, Guang-Xiong Peng, Shi-Peng Zhang, Marco Ruggieri, Vincenzo Greco. Quark mass scaling and properties of light-quark matter.Nuclear Science and Techniques, 2016, 27(6): 148     doi: 10.1007/s41365-016-0148-9

Abstract:

We study the properties of two-flavor quark matter in the equivparticle model. A new quark mass scaling at finite temperature is proposed and applied to the thermodynamics of two-flavor quark matter. It is found that the perturbative interaction has strong effect on quark matter properties at finite temperature and high density. The pressure at the minimum free energy per baryon is exactly zero. With increasing temperature, the energy per baryon increases, while the free energy per baryon decreases.

Key words: Quark matter, Equation of state, Quark mass scaling