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arXiv 2008.04918hep-phastro-ph.HE
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重类轴子粒子和核心坍缩超新星:对爆炸机制的约束和影响

Heavy axion-like particles and core-collapse supernovae: constraints and impact on the explosion mechanism

Giuseppe Lucente, Pierluca Carenza, Tobias Fischer, Maurizio Giannotti, Alessandro Mirizzi

摘要:

通过Primakoff过程和光子聚并,在超新星核中可以大量产生质量为$m_a \gtrsim 100$ keV的重类轴子粒子(ALPs)。使用一个国家的最先进的SN模型,我们重新审视的能量损失SN 1987年的轴子光子耦合的界限。此外,我们指出,重ALPs的质量$m_a \gtrsim 100$ MeV和轴子光子耦合$g_{aγ} \gtrsim 4 \times 10^{-9}$ GeV $^{-1}$将衰变成光子背后的冲击波产生的能量沉积,这将促进SN冲击复苏的可能增强。

英文摘要:

Heavy axion-like particles (ALPs), with masses $m_a \gtrsim 100$ keV, coupled with photons, would be copiously produced in a supernova (SN) core via Primakoff process and photon coalescence. Using a state-of-the-art SN model, we revisit the energy-loss SN 1987A bounds on axion-photon coupling. Moreover, we point out that heavy ALPs with masses $m_a \gtrsim 100$ MeV and axion-photon coupling $g_{aγ} \gtrsim 4 \times 10^{-9}$ GeV$^{-1}$ would decay into photons behind the shock-wave producing a possible enhancement in the energy deposition that would boost the SN shock revival.

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