论文标题
从量子回路上的Alps上强的超新星边界
Strong supernovae bounds on ALPs from quantum loops
论文作者
论文摘要
We show that in theories of axionlike particles (ALPs) coupled to electrons at tree-level, the one-loop effective coupling to photons is process dependent: the effective coupling relevant for decay processes, $g_{aγ}^{\text{(D)}}$, differs significantly from the coupling appearing in the phenomenologically important Primakoff process, $ g_ {aγ}^{\ text {（p）}} $。我们表明，这对在炎热和密集的环境（例如超新星）中的大规模阿尔卑斯山物理学具有重要意义。结果，我们从SN 1987a中得出了ALP-电子耦合的新限制，$ \ hat {g} _ {ae} $，通过考虑所有相关的生产过程，包括一环过程，并考虑过量冷却以及相关的gamma-ray burs burs a alp deceers的所有相关生产过程。我们的限制是迄今为止ALP质量范围内最强的限制之一，$ 0.03 \，\ text {mev} \，<m_a <240 \，\ text {mev} $。此外，我们还展示了ALP-Photon耦合上的宇宙学界限如何转化为一个循环的$ \ hat {g} _ {ae} $的新的，强的限制。我们的分析强调，一旦考虑到量子循环，很难实现ALP有效耦合之间的大层次结构。
We show that in theories of axionlike particles (ALPs) coupled to electrons at tree-level, the one-loop effective coupling to photons is process dependent: the effective coupling relevant for decay processes, $g_{aγ}^{\text{(D)}}$, differs significantly from the coupling appearing in the phenomenologically important Primakoff process, $g_{aγ}^{\text{(P)}}$. We show that this has important implications for the physics of massive ALPs in hot and dense environments, such as supernovae. We derive, as a consequence, new limits on the ALP-electron coupling, $\hat{g}_{ae}$, from SN 1987A by accounting for all relevant production processes, including one-loop processes, and considering bounds from excess cooling as well as the absence of an associated gamma-ray burst from ALP decays. Our limits are among the strongest to date for ALP masses in the range $0.03 \, \text{MeV} \, < m_a< 240 \, \text{MeV}$. Moreover, we also show how cosmological bounds on the ALP-photon coupling translate into new, strong limits on $\hat{g}_{ae}$ at one loop. Our analysis emphasises that large hierarchies between ALP effective couplings are difficult to realise once quantum loops are taken into account.
