Properties of color-flavor locked strange quark matter and strange stars in a new quark mass scaling

Chang, Qian; Chen, ShiWu; Peng, Guang-Xiong; Xu, J.

doi:10.1007/s11433-013-5160-z

Cited by 12 publications

(6 citation statements)

References 24 publications

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“…In this work, as was done in Ref. [83], we adopt the equivparticle model [84,85,86,87,88,89,90,91,92,93,94] to study the interface effects of SQM. All the strong interactions are treated with density-dependent quark masses in the equivparticle model, while the quarks are considered to be quasi-free particles.…”

Section: Equivparticle Model For Strangeletsmentioning

confidence: 99%

Interface effects of strange quark matter

Xia¹

2019

AIP Conference Proceedings

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The interface effects play important roles for the properties of strange quark matter (SQM) and the related physical processes. We show several examples on the implications of interface effects for both stable and unstable SQM. Based on an equivparticle model and adopting mean-field approximation (MFA), the surface tension and curvature term of SQM can be obtained, which are increasing monotonically with the density of SQM at zero external pressure. For a parameter set constrained according to the 2M ⊙ strange star, we find the surface tension is ∼2.4 MeV/fm 2 , while it is larger for other cases.

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Section: Equivparticle Model For Strangeletsmentioning

confidence: 99%

Interface effects of strange quark matter

Xia¹

2019

AIP Conference Proceedings

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“…In this work we investigate the interface effects of SQM in the equivparticle model [73][74][75][76][77][78][79][80][81][82][83], where both linear confinement and leading-order perturbative interactions are included with density-dependent quark masses [79]. In particular, we study the properties of strangelets adopting mean-field approximation (MFA).…”

Section: Introductionmentioning

confidence: 99%

Interface effects of strange quark matter with density dependent quark masses

et al. 2018

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We study the interface effects in strangelets adopting mean-field approximation (MFA). Based on an equivparticle model, the linear confinement and leading-order perturbative interactions are included with density-dependent quark masses. By increasing the confinement strength, the surface tension and curvature term of strange quark matter (SQM) become larger, while the perturbative interaction does the opposite. For those parameters constrained according to the 2M strange star, the surface tension is ∼2.4 MeV/fm 2 , while unstable SQM indicates a slightly larger surface tension. The obtained results are then compared with those predicted by the multiple reflection expansion (MRE) method. In contrast to the bag model case, it is found that MRE method overestimates the surface tension and underestimates the curvature term. To reproduce our results, the density of states in the MRE approach should be modified by proper damping factors.

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“…If true, there should exist stable objects of SQM with the baryon number A ranging from a few to ∼10 57 . Customarily, small SQM nuggets with A 10 7 are often referred to as strangelets [3][4][5][6][7][8][9][10], or slets [11], while stars consisting of SQM are called strange (quark) stars [12][13][14][15][16][17][18][19][20][21], being possible candidates for pulsars.…”

Section: Introductionmentioning

confidence: 99%

From strangelets to strange stars: a unified description

et al. 2016

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The conventionally separated treatments for strangelets and strange stars are now unified with a more comprehensive theoretical description for objects ranging from strangelets to strange stars. After constraining the model parameter according to the Witten-Bodmer hypothesis and observational massradius probability distribution of pulsars, we investigate the properties of this kind of objects. It is found that the energy per baryon decreases monotonically with increasing baryon number and reaches its minimum at the maximum baryon number, corresponding to the most massive strange star. Due to the quark depletion, an electric potential well is formed on the surface of the quark part. For a rotational bare strange star, a magnetic field with the typical strength in pulsars is generated.

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Properties of color-flavor locked strange quark matter and strange stars in a new quark mass scaling

Cited by 12 publications

References 24 publications

Interface effects of strange quark matter

Interface effects of strange quark matter

Interface effects of strange quark matter with density dependent quark masses

From strangelets to strange stars: a unified description

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