论文标题

中子星可以区分狄拉克和主要中微子吗?

Can neutron star discriminate between Dirac and Majorana neutrinos?

论文作者

Alok, Ashutosh Kumar, Chundawat, Neetu Raj Singh, Mandal, Arindam, Sarkar, Trisha

论文摘要

中微子的电磁特性的任何可观察到的影响都将提供新物理学的明显特征。这包括中微子自旋翻转现象中的外部磁场的前体。在这项工作中,我们研究了具有径向变化的磁场和物质密度(称为磁力)的中子恒星中自旋翻转的印象,该磁场和物质密度被称为磁铁,这也是中微子在热演化的初始阶段的大量产生的来源。我们发现,从中微子出现的中微子通量的精确测量将重新培养狄拉克和主要中微子的歧视,因为两种类型的中微子因自旋翻转振荡而导致的通量减少均不同。此外,与中子恒星的核心相比,在表面附近的通量减少更为明显。

Any observable repercussion of electromagnetic properties of neutrinos will provide a perspicuous signature of new physics. This includes the phenomenon of neutrino spin flip in the propinquity of an external magnetic field. In this work, we study the inklings of spin flip in a neutron star with a radially varying magnetic field and matter density, known as a magnetar, which is also a source of profuse production of neutrinos during its initial stage of thermal evolution. We find that a precise measurement of neutrino flux emerging from a neutron star would reeducate discrimination between Dirac and Majorana neutrinos as the flux reduction due to spin flip oscillations are different for both types of neutrinos. Further, the reduction of flux is more preeminent near the surface as compared to the core of a neutron star.

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