Evaluation of particle-anti-particle scaled correlation within effective models
| Autor: | Marcus Benghi Pinto, Andre F. Garcia, Volker Koch |
|---|---|
| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Lawrence Berkeley Natl Lab, Universidade Federal de Santa Catarina (UFSC), Univ Colorado |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Physics
Quark Nuclear and High Energy Physics Antiparticle Phase transition High Energy Physics::Lattice Critical phenomena High Energy Physics::Phenomenology Scaled correlation Beam Energy Scan data Correlation Mean field theory Critical point (thermodynamics) Statistical physics Off-diagonal quark susceptibility QCD phase diagram Physical quantity |
| Zdroj: | Web of Science Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2020-12-10T19:48:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-02-01 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) U.S. Department of Energy, Office of Science, Office of Nuclear Physics Beam Energy Scan Theory (BEST) Topical Collaboration Correlations and fluctuations of physical quantities are known to play an important role in phase transitions and critical phenomena. In recent years some experimental attempts were made in the scope of the Beam Energy Scan program to locate a possible critical point in the QCD phase diagram. In this work we use the Nambu Jona-Lasinio model to investigate the off-diagonal quark susceptibility, which is related to the quark anti-quark scaled correlation at the mean field level. We show that this correlation has a significant peak near the critical point and, therefore, may be a useful quantity to measure in experiment. We further study the effects of a repulsive vector coupling, which reduces the strength of the scaled correlation near the critical point. (C) 2019 Elsevier B.V. All rights reserved. Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, Brazil Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA Univ Fed Santa Catarina, Dept Fis, BR-88040900 Florianopolis, SC, Brazil Univ Colorado, Dept Phys, Boulder, CO 80309 USA Univ Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, SP, Brazil CAPES: 001 CNPq: 150327/2017-0 CNPq: 303846/2017-8 U.S. Department of Energy, Office of Science, Office of Nuclear Physics: DE-AC02-05CH11231 CNPq: 464898/2014-5 |
| Databáze: | OpenAIRE |
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