Revisiting the boiling of primordial quark nuggets at nonzero chemical potential

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	Revisiting the boiling of primordial quark nuggets at nonzero chemical potential
	Li, A; Liu, T; Gubler, P; Xu, RX
刊名	ASTROPARTICLE PHYSICS
	2015
卷号	62 期号:0 页码:115-121
关键词	Equation of state Quark-hadron phase transition Quark nuggets
通讯作者	Li, A (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China.
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.
学科主题	Astronomy & Astrophysics ; Physics
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
语种	英语
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/21078]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	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.
APA	Li, A,Liu, T,Gubler, P,&Xu, RX.(2015).Revisiting the boiling of primordial quark nuggets at nonzero chemical potential.ASTROPARTICLE PHYSICS,62(0),115-121.
MLA	Li, A,et al."Revisiting the boiling of primordial quark nuggets at nonzero chemical potential".ASTROPARTICLE PHYSICS 62.0(2015):115-121.