Stellar Evolution and Axion-Like Particles: New Constraints and Hints from Globular Clusters in the GAIA DR3 Data

IF 1.4 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

JETP Letters Pub Date : 2025-01-27 DOI:10.1134/S0021364024603798

S. V. Troitsky

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引用次数: 0

Abstract

Axion-like particles (ALPs) are hypothetical pseudoscalar bosons, natural in extensions of the Standard Model. Their interactions with ordinary matter and radiation are suppressed, making it challenging to detect them in laboratory experiments. However, these particles, produced within stellar interiors, can provide an additional mechanism for energy loss, potentially influencing stellar evolution. Prominent methods for searching for such effects involve measuring the properties of red giants and helium-burning stars in globular clusters (GCs). Here we use published catalogs of stars selected as members of seven GCs on the basis of p-arallaxes and proper motions measured by Gaia (Data Release 3). Making use of previously derived theoretical relations and the new data, we find the upper limit on the ALP-electron coupling, \({{g}_{{ae}}} < 5.2 \times {{10}^{{ - 14}}}\) (95% CL), and an indication (\(3.3\sigma \)) to nonzero ALP-photon coupling, \({{g}_{{a\gamma }}} = (6.5_{{ - 1.3}}^{{ + 1.1}}) \times {{10}^{{ - 11}}}\) GeV^–1. Given the precision of contemporary observational data, it is imperative to refine ALP constraints through more sophisticated analyses, which will be explored in detail elsewhere.

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恒星演化和类轴子粒子：来自GAIA DR3数据中的球状星团的新约束和提示

类轴子粒子（ALPs）是假设的伪标量玻色子，是标准模型的自然扩展。它们与普通物质和辐射的相互作用被抑制，这使得在实验室实验中检测到它们具有挑战性。然而，这些在恒星内部产生的粒子可以为能量损失提供额外的机制，可能影响恒星的演化。寻找这种效应的主要方法包括测量球状星团（GCs）中红巨星和氦燃烧恒星的特性。在这里，我们使用已发表的星表，根据盖亚测量的p-频散和自振运动选择了7个gc的成员（数据发布3）。利用先前导出的理论关系和新数据，我们找到了alp -电子耦合的上限，\({{g}_{{ae}}} < 5.2 \times {{10}^{{ - 14}}}\) （95）% CL), and an indication (\(3.3\sigma \)) to nonzero ALP-photon coupling, \({{g}_{{a\gamma }}} = (6.5_{{ - 1.3}}^{{ + 1.1}}) \times {{10}^{{ - 11}}}\) GeV–1. Given the precision of contemporary observational data, it is imperative to refine ALP constraints through more sophisticated analyses, which will be explored in detail elsewhere.

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来源期刊

JETP Letters 物理-物理：综合

CiteScore

2.40

自引率

30.80%

发文量

164

审稿时长

3-6 weeks

期刊介绍： All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.