Constraining axion-like-particles with hard X-ray emission from magnetars
文献类型：期刊论文
| 作者 | Sinha, Kuver; Fortin, Jean-François |
| 刊名 | Journal of High Energy Physics
 |
| 出版日期 | 2018 |
| 卷号 | 2018 |
| 关键词 | Cosmology of Theories beyond the SM Beyond Standard Model CP violation High Energy Physics - Phenomenology Astrophysics - High Energy Astrophysical Phenomena |
| DOI | 10.1007/jhep06(2018)048 |
| 英文摘要 | Axion-like particles (ALPs) produced in the core of a magnetar will convert to photons in the magnetosphere, leading to possible signatures in the hard X-ray band. We perform a detailed calculation of the ALP-to- photon conversion probability in the magnetosphere, recasting the coupled differential equations that describe ALP-photon propagation into a form that is efficient for large scale numerical scans. We show the dependence of the conversion probability on the ALP energy, mass, ALP- photon coupling, magnetar radius, surface magnetic field, and the angle between the magnetic field and direction of propagation. Along the way, we develop an analytic formalism to perform similar calculations in more general n-state oscillation systems. Assuming ALP emission rates from the core that are just subdominant to neutrino emission, we calculate the resulting constraints on the ALP mass versus ALP-photon coupling space, taking SGR 1806-20 as an example. In particular, we take benchmark values for the magnetar radius and core temperature, and constrain the ALP parameter space by the requirement that the luminosity from ALP-to-photon conversion should not exceed the total observed luminosity from the magnetar. The resulting constraints are competitive with constraints from helioscope experiments in the relevant part of ALP parameter space. |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/282318]  |
| 专题 | 硬X射线调制望远镜卫星 高能物理研究所_粒子天体物理中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Sinha, Kuver,Fortin, Jean-François. Constraining axion-like-particles with hard X-ray emission from magnetars[J]. Journal of High Energy Physics,2018, 2018. |
| APA | Sinha, Kuver,&Fortin, Jean-François.(2018).Constraining axion-like-particles with hard X-ray emission from magnetars.Journal of High Energy Physics, 2018. |
| MLA | Sinha, Kuver,et al."Constraining axion-like-particles with hard X-ray emission from magnetars".Journal of High Energy Physics 2018(2018). |
入库方式： OAI收割
来源：高能物理研究所
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