论文标题

原始中子星作为宇宙工厂,用于巨大的斧头样粒子

Proto-neutron stars as cosmic factories for massive axion-like-particles

论文作者

Lella, Alessandro, Carenza, Pierluca, Lucente, Giuseppe, Giannotti, Maurizio, Mirizzi, Alessandro

论文摘要

具有$ M_A \ sim {\ Mathcal O}(100)$ MEV并与核子相结合的巨大轴测样粒子(ALP)的参数空间在很大程度上没有探索。在这里,我们在此参数区域中介绍了新约束。在此过程中,我们表征了来自原始恒星的重型阿尔卑斯山的超新星发射率,其中包括首次在核子核子核子bremsstrahlung和Pionic Compton过程中质量效应。此外,我们重点介绍了与超新星ALP衰变的光子和瘦素探测耦合的新型可能性。

The parameter space of massive axion-like-particles (ALPs) with $m_a \sim {\mathcal O} (100)$ MeV and coupled with nucleons is largely unexplored. Here, we present new constraints in this parameter region. In doing so, we characterize the supernova emissivity of heavy ALPs from a proto-neutron star, including for the first time mass effects in both nucleon-nucleon Bremsstrahlung and pionic Compton processes. In addition, we highlight novel possibilities to probe the couplings with photons and leptons from supernova ALP decays.

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