Hidden Photon Dark Matter in the Light of XENON1T and Stellar Cooling

Autor:	Alonso-Álvarez, Gonzalo, Ertas, Fatih, Jaeckel, Joerg, Kahlhoefer, Felix, Thormaehlen, Lennert J.
Rok vydání:	2020
Předmět:	High Energy Physics - Phenomenology Astrophysics - Cosmology and Nongalactic Astrophysics High Energy Physics - Experiment
Druh dokumentu:	Working Paper
DOI:	10.1088/1475-7516/2020/11/029
Popis:	The low-energy electronic recoil spectrum in XENON1T provides an intriguing hint for potential new physics. At the same time, observations of horizontal branch stars favor the existence of a small amount of extra cooling compared to the one expected from the Standard Model particle content. In this note, we argue that a hidden photon with a mass of $\sim 2.5$ keV and a kinetic mixing of $\sim 10^{-15}$ allows for a good fit to both of these excesses. In this scenario, the signal detected in XENON1T is due to the absorption of hidden photon dark matter particles, whereas the anomalous cooling of horizontal branch stars arises from resonant production of hidden photons in the stellar interior. Comment: 15 pages, 2 figures, improved statistical analysis
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2006.11243 Zobrazit plný text záznamu View this record from Arxiv