Photophilic hadronic axion from heavy magnetic monopoles

Photophilic hadronic axion from heavy magnetic monopoles
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来自重磁单极子的亲光强子轴子

DOI:
10.1007/jhep06(2021)123
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发表时间:
2021
影响因子:
5.4
通讯作者:
A. Ringwald
A. Ringwald
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
A. Sokolov;A. Ringwald

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我们提出了一种 QCD 轴子模型,该模型是通过 Peccei-Quinn 标量场与高能带磁费米子的耦合来实现的。我们证明该模型的轴子解决了强 CP 问题,然后使用 Schwinger 原时方法积分出重磁单极子。我们发现所讨论的模型产生与标准模型的轴子耦合,这与 KSVZ/DFSZ 型模型中计算的轴子耦合截然不同,因此可以通过各种投影实验来探测大部分相应的参数空间。此外,我们引入的轴子与宇宙的异常 TeV 透明度和球状星团中水平分支恒星的过度冷却所暗示的天体物理学暗示是一致的。我们认为,与轴子衰变常数 fa > 1012 GeV 的传统暴胀前 QCD 轴子情况相比,宇宙轴子丰度的首项没有改变。
We propose a model for the QCD axion which is realized through a coupling of the Peccei-Quinn scalar field to magnetically charged fermions at high energies. We show that the axion of this model solves the strong CP problem and then integrate out heavy magnetic monopoles using the Schwinger proper time method. We find that the model discussed yields axion couplings to the Standard Model which are drastically different from the ones calculated within the KSVZ/DFSZ-type models, so that large part of the corresponding parameter space can be probed by various projected experiments. Moreover, the axion we introduce is consistent with the astrophysical hints suggested both by anomalous TeV-transparency of the Universe and by excessive cooling of horizontal branch stars in globular clusters. We argue that the leading term for the cosmic axion abundance is not changed compared to the conventional pre-inflationary QCD axion case for axion decay constant fa> 1012 GeV.
DOI: 10.1038/nphys4109
发表时间: 2017-06-01
期刊: NATURE PHYSICS
影响因子: 19.6
作者:
Anastassopoulos, V.;Aune, S.;Zioutas, K.
通讯作者: Zioutas, K.
DOI: 10.1038/nature20115
发表时间: 2016-11-03
期刊: NATURE
影响因子: 64.8
作者:
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通讯作者: Szabo, K. K.
DOI: 10.1103/physrevc.98.035802
发表时间: 2018-09-20
期刊: PHYSICAL REVIEW C
影响因子: 3.1
作者:
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通讯作者: Reddy, Sanjay