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题名: Revisiting the boiling of primordial quark nuggets at nonzero chemical potential
作者: Li, A;  Liu, T;  Gubler, P;  Xu, RX
刊名: ASTROPARTICLE PHYSICS
出版日期: 2015
卷号: 62, 期号:0, 页码:115-121
关键词: Equation of state ;  Quark-hadron phase transition ;  Quark nuggets
学科分类: Astronomy & Astrophysics ;  Physics
DOI: http://dx.doi.org/10.1016/j.astropartphys.2014.08.001
通讯作者: Li, A (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China.
文章类型: Article
英文摘要: The boiling of possible quark nuggets during the quark-hadron phase transition of the Universe at non-zero chemical potential is revisited within the microscopic Brueckner-Hartree-Fock approach employed for the hadron phase, using two kinds of baryon interactions as fundamental inputs. To describe the deconfined phase of quark matter, we use a recently developed quark mass density-dependent model with a fully self-consistent thermodynamic treatment of confinement. We study the baryon number limit A(boil) (above which boiling may be important) with three typical values for the confinement parameter D. It is firstly found that the baryon interaction with a softer equation of state for the hadron phase would only lead to a small increase of A(boil). However, results depend sensitively on the confinement parameter in the quark model. Specifically, boiling might be important during the Universe cooling for a limited parameter range around D-1/2 = 170 MeV, a value satisfying recent lattice QCD calculations of the vacuum chiral condensate, while for other choices of this parameter, boiling might not happen and cosmological quark nuggets of 10(2) < A < 10(50) could survive. (C) 2014 Elsevier B.V. All rights reserved.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: DUN GRAND NOMBRE ;  MONTE-CARLO CALCULATIONS ;  NEUTRON-STAR MATTER ;  EQUATION-OF-STATE ;  UN DEVELOPPEMENT ;  PHASE-TRANSITION ;  STRANGE MATTER ;  PROTONEUTRON STARS ;  PARTICULES ;  NUCLEI
收录类别: SCI
项目资助者: National Basic Research Program(973 Program) of China [2012CB821800, 2014CB845800] ;  Fundamental Research Funds for the Central Universities ;  National Natural Science Foundation of China [11078015, 11103015, 11225314, 11233006, 11473022, U1431107, U1331101] ;  CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects [OP201305]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21078
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Li, A,Liu, T,Gubler, P,et al. Revisiting the boiling of primordial quark nuggets at nonzero chemical potential[J]. ASTROPARTICLE PHYSICS,2015,62(0):115-121.
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