Exploring hadron physics in black hole formations: A new promising target of neutrino astronomy
Exploring hadron physics in black hole formations: A new promising target of neutrino astronomy
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DOI：
10.1103/physrevd.81.083009
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发表时间：
2010-04
影响因子：
5
通讯作者：
K. Nakazato;K. Sumiyoshi;H. Suzuki;S. Yamada
中科院分区：
文献类型：
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作者：
K. Nakazato;K. Sumiyoshi;H. Suzuki;S. Yamada
从大规模恒星坍塌中探测到中微子，不仅可以教给我们很多关于源天体的知识，还可以教给我们关于源天体内部工作的微物理的许多知识。在这项研究中，我们定量地讨论了从非自转大质量恒星的黑洞形成坍塌产生的中微子信号中提取关于致密和热强子物质性质的信息的可能性。基于详细的数值模拟，我们在充分考虑中微子振荡的情况下，对超级神冈核子的事件数进行了估算。我们证明了银河系事件的事件数目足够大，不仅可以探测，而且可以通过我们的统计方法区分不同的强子状态方程，假设相同的前驱模型和非自转。这意味着，大质量恒星坍塌可以成为强子物理的独特探测器，也将成为新生的中微子天文学的一个有前途的目标。
The detection of neutrinos from massive stellar collapses can teach us a great deal not only about source objects but also about microphysics working deep inside them. In this study we discuss quantitatively the possibility to extract information on the properties of dense and hot hadronic matter from neutrino signals coming out of black-hole-forming collapses of nonrotational massive stars. Based on our detailed numerical simulations we evaluate the event numbers for SuperKamiokande, with neutrino oscillations fully taken into account. We demonstrate that the event numbers from a Galactic event are large enough not only to detect but also to distinguish one hadronic equation of state from another by our statistical method, assuming the same progenitor model and nonrotation. This means that the massive stellar collapse can be a unique probe into hadron physics and will be a promising target of the nascent neutrino astronomy.