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arXiv 1605.08780astro-ph.HEhep-ph
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用来自下一颗银河系超新星的中微子信号探测轴子

Probing axions with the neutrino signal from the next galactic supernova

Tobias Fischer, Sovan Chakraborty, Maurizio Giannotti, Alessandro Mirizzi, Alexandre Payez, Andreas Ringwald

摘要:

我们研究了轴子发射在模拟大质量恒星爆炸的影响,作为补充标准中微子发射的能量损失的额外来源。这个通道的加入缩短了初生质子中子星的冷却时间,从而缩短了中微子信号的持续时间。我们将轴-物质耦合强度作为自由参数来研究它对质子中子星演化以及对中微子信号的影响。我们进一步分析了当前和下一代地下中微子探测器中增强冷却的可观测性,表明可以探测轴子质量$m_a \gtrsim 8 \times 10^{-3}$ eV的值。因此,对银河系超新星中微子的观测将为探测计划中的日光镜实验-国际轴子观测站(IAXO)-范围内的轴子质量提供宝贵的可能性。

英文摘要:

We study the impact of axion emission in simulations of massive star explosions, as an additional source of energy loss complementary to the standard neutrino emission. The inclusion of this channel shortens the cooling time of the nascent protoneutron star and hence the duration of the neutrino signal. We treat the axion-matter coupling strength as a free parameter to study its impact on the protoneutron star evolution as well as on the neutrino signal. We furthermore analyze the observability of the enhanced cooling in current and next-generation underground neutrino detectors, showing that values of the axion mass $m_a \gtrsim 8 \times 10^{-3}$ eV can be probed. Therefore a galactic supernova neutrino observation would provide a valuable possibility to probe axion masses in a range within reach of the planned helioscope experiment, the International Axion Observatory (IAXO).

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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