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首页> 外文期刊>Physical review, D >Neutrino flavor transformation in supernovae as a probe for nonstandard neutrino-scalar interactions
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Neutrino flavor transformation in supernovae as a probe for nonstandard neutrino-scalar interactions

机译：Supernovae中的中性腺素调味转化为非标准中微标量子相互作用的探头

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摘要

We explore the possibility of probing the nonstandard interactions between the neutrino and a hypothetical massive scalar or pseudoscalar via neutrino flavor transformation in supernovae. We find that in the ultrarelativistic limit, the effective interaction between the neutrinos vanishes if neutrinos are Dirac fermions but not if they are Majorana fermions. The impact of the new neutrino interaction upon the flavor transformation above the neutrinosphere is calculated in the context of the multiangle “neutrino bulb model.” We find that the addition of the nonstandard neutrino self-interaction (NSSI) to the ordinary V-A self-interaction between neutrinos is capable of dramatically altering the collective oscillations when its strength is comparable to the standard, V-A, interaction. The effect of flavor-preserving (FP) NSSI is generally to suppress flavor transformation, while the flavor-violating (FV) interactions are found to promote flavor transformations. If the neutrino signal from a Galactic supernova can be sufficiently well understood, supernova neutrinos can provide complimentary constraints on scalar/pseudoscalar interactions of neutrinos as well as distinguishing whether the neutrino is a Majorana or Dirac fermion.
机译：我们探讨了超胃部中Neutrino风味转化探测中微子和假想的大规模或假瘤醛之间的非标准相互作用的可能性。我们发现，如果中微子是Dirac Fermions，则在Utrarivisiver的极限中，中微子之间的有效相互作用消失，但如果它们是马太基亚球群。在多聚“Neutrino灯泡模型的背景下，计算新的中核相互作用对中微晶圈的风味转化的影响。我们发现，当其强度与标准，V-A相互作用相当时，将非标准的中微子自相互作用（NSSI）添加到中微子之间的普通V-A自相互作用能够显着改变集体振荡。风味保留（FP）NSSI的效果通常用于抑制风味转化，而发现违规（FV）相互作用促进风味转化。如果可以充分地理解来自银河系超新年的中微子信号，则超新鲜中微子可以为中微域的标量/伪张相相互作用提供互补限制，并区分中微子是主要的是Majorana或Dirac Fermion。

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