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arXiv 2408.07352hep-phastro-ph.COastro-ph.HE
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偏振测量作为轴子-光子耦合的探针:GRB 221009A研究

Polarization Measurements as a Probe of Axion-Photon Coupling: a Study of GRB 221009A

Boris Betancourt Kamenetskaia, Nissim Fraija, Gonzalo Herrera

AI总结:

本文首次利用GRB 221009A的偏振测量并完整计算Stokes参数,对轴子-光子耦合给出约束,在特定质量区间与现有互补探针相当。

摘要:

类轴子粒子(ALPs)可在伽马射线暴中产生,从而改变这些事件中电磁辐射的偏振。我们首次按照天体物理学界通常采用的方法,对Stokes参数进行完整计算,从GRB 221009A的偏振测量中导出了对轴子-光子耦合的限制。在天体物理不确定性范围内,我们给出的轴子-光子耦合限值在轴子质量范围$10^{-9}$ eV $\lesssim m_a \lesssim 10^{-8}$ eV内与互补性探针具有竞争力,并进一步使探测具有理论动机的ALP暗物质参数空间成为可能。

英文摘要:

Axion Like Particles (ALPs) can be produced in Gamma Ray Bursts, altering the polarization of the electromagnetic emission in these events. For the first time, we derive bounds on the axion-photon coupling from polarization measurements of GRB 221009A, performing a full calculation of the Stokes parameters, as it is typically done in the astrophysics community. Within astrophysical uncertainties, our limits on the axion-photon coupling are competitive with complementary probes in the axion mass range $10^{-9}$ eV $\lesssim m_a \lesssim 10^{-8}$ eV, further allowing to probe motivated parameter space of ALP dark matter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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