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arXiv 1712.04773hep-phastro-ph.HEnucl-th
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质子中子星中的富轻子冷QCD物质

Lepton-rich cold QCD matter in protoneutron stars

J. C. Jiménez, E. S. Fraga

摘要:

我们研究质子中子星物质使用的最先进的微扰状态方程的冷和密集的QCD在存在一个固定的轻子分数,其中包括电子和中微子。除了计算的状态方程的修改,由于存在的被困中微子,我们表明,稳定的奇异夸克物质有一个更严格的参数空间。我们还研究了在质子中子星的核心的未成对夸克物质的成核的可能性,通过匹配的强子状态方程,即TM1与捕获中微子的轻子丰富的QCD压力。利用微扰QCD对重整化标度参数的固有依赖性,我们提供了一个我们计算的观测量的不确定性的度量。

英文摘要:

We investigate protoneutron star matter using the state-of-the-art perturbative equation of state for cold and dense QCD in the presence of a fixed lepton fraction in which both electrons and neutrinos are included. Besides computing the modifications in the equation of state due to the presence of trapped neutrinos, we show that stable strange quark matter has a more restricted parameter space. We also study the possibility of nucleation of unpaired quark matter in the core of protoneutron stars by matching the lepton-rich QCD pressure onto a hadronic equation of state, namely TM1 with trapped neutrinos. Using the inherent dependence of perturbative QCD on the renormalization scale parameter, we provide a measure of the uncertainty in the observables we compute.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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