论文标题
宇宙基因中微子通量在主动秘密相互作用的效果下
Cosmogenic neutrino fluxes under the effect of active-sterile secret interactions
论文作者
论文摘要
超高能量宇宙中微子可能是仅限于中微子部门的独特机会，可以揭示可能的新物理相互作用。在本文中，我们研究了由伪尺度介导的秘密主动 - 肌相互作用对宇宙中微子预期通量的可观察到的影响。结果表明，对于逃避宇宙学，天体物理和基本粒子限制所必需的无菌中微子和伪级的质量，这种新相互作用的存在可以显着改变从PEV到ZEV的地球范围内宇宙中微子的能量光谱。有趣的是，如果标量介质质量约为250 meV，并且UHECR由质子组件主导，则可以在大型设备上检测到的光谱结果的变形。较大的介体肿块或以较重的核为主的UHECR的化学成分需要更大的宇宙射线设备，这可能在以后可用。
Ultra High Energy cosmogenic neutrinos may represent a unique opportunity to unveil possible new physics interactions once restricted to the neutrino sector only. In the present paper we study the observable effects of a secret active-sterile interactions, mediated by a pseudoscalar, on the expected flux of cosmogenic neutrinos. The results show that for masses of sterile neutrinos and pseudoscalars of hundreds MeV, necessary to evade cosmological, astrophysical and elementary particle constraints, the presence of such new interactions can significantly change the energy spectrum of cosmogenic neutrinos at Earth in the energy range from PeV to ZeV. Interestingly, the distortion of the spectrum results to be detectable at GRAND apparatus if the scalar mediator mass is around 250 MeV and the UHECRs are dominated by the proton component. Larger mediator masses or a chemical composition of UHECRs dominated by heavier nuclei would require much larger cosmic rays apparatus which might be available in future.
