Uncertainty quantification for neutrino opacities in core-collapse supernovae and neutron star mergers
Uncertainty quantification for neutrino opacities in core-collapse supernovae and neutron star mergers
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核心塌陷超新星和中子星合并中中微子不透明度的不确定性量化
DOI：
10.1103/physrevc.107.015804
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发表时间：
2023
影响因子：
3.1
通讯作者：
Margueron, Jérôme
中科院分区：
文献类型：
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作者：
Lin, Zidu;Steiner, Andrew W.;Margueron, Jérôme
我们对中微子-核子逆平均自由程（IMFP）和基本状态方程（EoS）之间的相关性进行了广泛的研究。研究了不同密度区域中中微子平均自由程的强相互作用不确定性。核子有效质量、核子化学势和介质中的剩余相互作用在决定中微子-核子相互作用中起着重要的作用。我们研究了上述数量是如何约束的EoS一致的（i）核质量测量，（ii）质子-质子散射相移，和（iii）中子星星观测。然后，我们利用相位近似方法，研究了带电流和中性流中微子-核子反平均自由程由于这些量的变化而引起的不确定性。最后，我们计算了（i）基于EOS的数量和基于EOS的数量之间的皮尔逊相关系数;（ii）基于EOS的数量和IMFP之间的皮尔逊相关系数;（iii）IMFP和IMFP之间的皮尔逊相关系数。我们发现了一个强大的影响剩余的相互作用对中微子不透明度的自旋和自旋-同位旋通道，这是没有很好地约束当前的核模型。
We perform an extensive study of the correlations between the neutrino-nucleon inverse mean free paths (IMFPs) and the underlying equation of states (EoSs). Strong interaction uncertainties in the neutrino mean free path are investigated in different density regimes. The nucleon effective mass, the nucleon chemical potentials, and the residual interactions in the medium play an important role in determining neutrino-nucleon interactions in a density-dependent manner. We study how the above quantities are constrained by an EoS consistent with (i) nuclear mass measurements, (ii) proton-proton scattering phase shifts, and (iii) neutron star observations. We then study the uncertainties of both the charged current and the neutral current neutrino-nucleon inverse mean free paths due to the variation of these quantities, using thephase approximation method. Finally, we calculate the Pearson correlation coefficients between (i) the EoS-based quantities and the EoS-based quantities; (ii) the EoS-based quantities and the IMFPs; (iii) the IMFPs and the IMFPs. We find a strong impact of residual interactions on neutrino opacity in the spin and spin-isospin channels, which are not well constrained by current nuclear modelings.
Skyrme-RPA 研究热致密超新星物质中的带电中微子不透明度
DOI：
10.1051/epjconf/201819402006
发表时间：
2018
期刊：
arXiv: Nuclear Theory
影响因子：
--
作者：
A. A. Dzhioev;G. Mart'inez
通讯作者：
G. Mart'inez