来自SN 1987 A的勃朗峰中微子:它们可能是具有$m^2=-0.38$ keV $^2$的单色(8 MeV)快子吗?
The Mont Blanc neutrinos from SN 1987A: Could they have been monochromatic (8 MeV) tachyons with $m^2=-0.38$ keV$^2$?
摘要:
在这里,我们考虑具有$m_ν^2=-0.38$ $keV^2$的超光速中微子作为勃朗峰爆发的解释。它表明,勃朗峰爆发是一致的独特签名的解释,即,SN 1987 A的8 MeV反中微子线。它进一步表明,一个模型的核心坍缩超新星涉及质量为8兆电子伏的暗物质粒子,实际上会产生一个8兆电子伏的反中微子线。此外,暗物质模型预测8 MeV的$ν,\barν$和$e^+e^-$对来自银河系中心,在那里人们预计会有大量的暗物质聚集。由此产生的$e^+$将产生来自银河系中心的$γ-$射线,与MeV $γ-$射线数据的拟合产生了模型的暗物质质量,以及计算出的源温度和角尺寸。更直接的证据来自神冈-II探测器在SN 1987 A当天记录的$N\sim1000$事件的光谱,它似乎在探测器背景上显示出8 MeV的谱线。这条$\barν$线,如果是真的,已经隐藏了30年,因为它非常接近背景的峰值。这一事实通常可以证明极端怀疑论是正确的。然而,在目前的情况下,需要一个更积极的观点,这是基于(a)结果$(30 σ),$的非常高的统计意义,(b)使用与SN 1987 A数据无关的探测器背景,使用后来的K-II数据集,以及(c)观察到了一个高于背景谱的过剩谱,其中心能量和宽度都与8 MeV的$\barν$谱线的中心能量和宽度一致,$25\%$分辨率。最后指出,勃朗峰爆发的快子解释符合作者早期的非传统的中微子质量状态的$3+3$模型。
英文摘要:
Here we consider faster-than-light neutrinos having $m_ν^2=-0.38$ $keV^2$ as the explanation of the Mont Blanc burst. It is shown that the Mont Blanc burst is consistent with the distinctive signature of that explanation i.e., an 8 MeV antineutrino line from SN 1987A. It is further shown that a model of core collapse supernovae involving dark matter particles of mass 8 MeV would in fact yield an 8 MeV antineutrino line. Moreover, that dark matter model predicts 8 MeV $ν,\barν$ and $e^+e^-$ pairs from the galactic center, a place where one would expect large amounts of dark matter to collect. The resulting $e^+$ would create $γ-$rays from the galactic center, and a fit to MeV $γ-$ray data yields the model's dark matter mass, as well as the calculated source temperature and angular size. More direct support comes from the spectrum of $N\sim1000$ events recorded by the Kamiokande-II detector on the day of SN 1987A, which appear to show an 8 MeV line atop the detector background. This $\barν$ line, if genuine, has been well-hidden for 30 years because it occurs very close to the peak of the background. This fact might ordinarily justify extreme skepticism. In the present case, however, a more positive view is called for based on (a) the very high statistical significance of the result $(30 σ),$ (b) the use of a detector background independent of the SN 1987A data using a later K-II data set, and (c) the observation of an excess above the background spectrum whose central energy and width both agree with that of an 8 MeV $\barν$ line broadened by $25\%$ resolution. Lastly, it is noted that the tachyonic interpretation of the Mont Blanc burst fits the author's earlier unconventional $3+3$ model of the neutrino mass states.
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