Global fits of axion-like particles to XENON1T and astrophysical data

被引：31

作者：

Athron, Peter ^{[1
,2
,3
]}

Balazs, Csaba ^{[3
]}

Beniwal, Ankit ^{[4
]}

Camargo-Molina, J. Eliel ^{[5
]}

Fowlie, Andrew ^{[3
]}

Gonzalo, Tomas E. ^{[3
]}

Hoof, Sebastian ^{[6
]}

Kahlhoefer, Felix ^{[7
]}

Marsh, David J. E. ^{[6
,8
]}

Prim, Markus Tobias ^{[9
]}

Scaffidi, Andre ^{[10
]}

Scott, Pat ^{[5
,11
]}

Su, Wei ^{[12
,13
]}

White, Martin ^{[12
,13
]}

Wu, Lei ^{[3
]}

Zhang, Yang ^{[3
,14
]}

机构：

[1] Nanjing Normal Univ, Dept Phys, Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

[2] Nanjing Normal Univ, Inst Theoret Phys, Wenyuan Rd, Nanjing 210023, Jiangsu, Peoples R China

[3] Monash Univ, Sch Phys & Astron, Wellington Rd, Melbourne, Vic 3800, Australia

[4] Catholic Univ Louvain, Ctr Cosmol Particle Phys & Phenomenol CP3, B-1348 Louvain La Neuve, Belgium

[5] Imperial Coll London, Blackett Lab, Dept Phys, Prince Consort Rd, London SW7 2AZ, England

[6] Georg August Univ Gottingen, Inst Astrophys, Friedrich Hund Pl 1, D-37077 Gottingen, Germany

[7] Rhein Westfal TH Aachen, Inst Theoret Particle Phys & Cosmol TTK, D-52056 Aachen, Germany

[8] Kings Coll London, Dept Phys, London WC2R 2LS, England

[9] Rheinischen Friedrich Wilhelms Univ Bonn, Phys Inst, Nussallee 12, D-53115 Bonn, Germany

[10] Ist Nazl Fis Nucl, Sez Torino, Via P Giuria 1, I-10125 Turin, Italy

[11] Univ Queensland, Sch Math & Phys, Brisbane, Qld 4072, Australia

[12] Univ Adelaide, ARC Ctr Excellence Dark Matter Particle Phys, North Terrace, Adelaide, SA 5005, Australia

[13] Univ Adelaide, CSSM, Dept Phys, North Terrace, Adelaide, SA 5005, Australia

[14] Zhengzhou Univ, Sch Phys, 100 Sci Ave, Zhengzhou 450001, Peoples R China

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2021年 / 2021卷 / 05期

基金：

澳大利亚研究理事会; 英国科学技术设施理事会;

关键词：

Beyond Standard Model; Cosmology of Theories beyond the SM; DARK-MATTER INTERPRETATION; PRIOR DISTRIBUTIONS; LIKELIHOOD RATIO; SOLAR AXIONS; EXCESS; ELECTRON; RECOIL; LIGHT; MODELS; SCATTERING;

D O I：

10.1007/JHEP05(2021)159

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The excess of electron recoil events seen by the XENON1T experiment has been interpreted as a potential signal of axion-like particles (ALPs), either produced in the Sun, or constituting part of the dark matter halo of the Milky Way. It has also been explained as a consequence of trace amounts of tritium in the experiment. We consider the evidence for the solar and dark-matter ALP hypotheses from the combination of XENON1T data and multiple astrophysical probes, including horizontal branch stars, red giants, and white dwarfs. We briefly address the influence of ALP decays and supernova cooling. While the different datasets are in clear tension for the case of solar ALPs, all measurements can be simultaneously accommodated for the case of a sub-dominant fraction of dark-matter ALPs. Nevertheless, this solution requires the tuning of several a priori unknown parameters, such that for our choices of priors a Bayesian analysis shows no strong preference for the ALP interpretation of the XENON1T excess over the background hypothesis.

引用

页数：40

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