Detecting particle dark matter signatures by cross-correlating γ-ray anisotropies with weak lensing

14th International Conference on Topics in Astroparticle and Underground Physics

物理学;天文学

Camera, S.^1 ; Fornasa, M.^2 ; Fornengo, N.^3,4 ; Regis, M.^3,4

Jodrell Bank Centre for Astrophysics, University of Manchester, Manchester

M13 9PL, United Kingdom^1

GRAPPA Institute, University of Amsterdam, Amsterdam

1098 XH, Netherlands^2

Dipartimento di Fisica, Università di Torino, Torino

10125, Italy^3

INFN, Sezione di Torino, Torino

10125, Italy^4

关键词: Cross correlations;    Dark matter;    Dark matter particles;    Gamma-ray background;    Physics experiments;    Weak gravitational lensing;    Weak lensing;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/718/3/032003/pdf
DOI  :  10.1088/1742-6596/718/3/032003

学科分类：天文学(综合)

来源: IOP

【 摘 要 】

The underlying nature of dark matter still represents one of the fundamental questions in contemporary cosmology. Although observations well agree with its description in terms of a new fundamental particle, neither direct nor indirect signatures of its particle nature have been detected so far, despite a strong experimental effort. Similarly, particle accelerators have hitherto failed at producing dark matter particles in collider physics experiments. Here, we illustrate how the cross-correlation between anisotropies in the diffuse γ-ray background and weak gravitational lensing effects represents a novel promising way in the quest of detecting particle dark matter signatures.