CERN Accelerating science

Preprint
Report number	arXiv:2203.06859 ; FERMILAB-CONF-22-191-PPD-T
Title	Snowmass2021 Cosmic Frontier White Paper: Puzzling Excesses in Dark Matter Searches and How to Resolve Them
Author(s)	Leane, Rebecca K. (SLAC ; KIPAC, Menlo Park) ; Shin, Seodong (Jeonbuk Natl. U.) ; Yang, Liang (UC, San Diego) ; Adhikari, Govinda (UC, San Diego) ; Alhazmi, Haider (Jazan U.) ; Aramaki, Tsuguo (Northeastern U.) ; Baxter, Daniel (Fermilab) ; Calore, Francesca (Annecy, LAPTH) ; Caputo, Regina (NASA, Goddard) ; Cholis, Ilias (Oakland U.) ; Daylan, Tansu (MIT, LNS ; MIT, MKI ; Princeton U., Astrophys. Sci. Dept.) ; Di Mauro, Mattia (INFN, Turin) ; von Doetinchem, Philip (Hawaii U.) ; Han, Ke (Shanghai Jiaotong U.) ; Hooper, Dan (Fermilab ; Chicago U. ; Chicago U., KICP) ; Horiuchi, Shunsaku (Virginia Tech. ; Tokyo U., IPMU) ; Kim, Doojin (Texas A-M) ; Kong, Kyoungchul (Kansas U.) ; Lang, Rafael F. (Purdue U.) ; Lin, Qing (Hefei, CUST) ; Linden, Tim (Stockholm U., OKC) ; Liu, Jianglai (Shanghai Jiaotong U. ; Shanghai Jiao Tong U.) ; Macias, Oscar (U. Amsterdam, GRAPPA) ; Mishra-Sharma, Siddharth (Harvard U., Phys. Dept. ; IAIFI, Cambridge ; MIT, Cambridge, CTP) ; Murphy, Alexander (U. Edinburgh) ; Rajaee, Meshkat (Jeonbuk Natl. U.) ; Rodd, Nicholas L. (CERN) ; Parikh, Aditya ; Park, Jong-Chul (Chungnam Natl. U.) ; Sarsa, Maria Luisa (Zaragoza U.) ; Shockley, Evan (Chicago U., KICP) ; Slatyer, Tracy R. (MIT, Cambridge, CTP) ; Takhistov, Volodymyr (Tokyo U., IPMU) ; Wagner, Felix (Vienna, OAW) ; Ye, Jingqiang (Columbia U. ; Columbia U., Astron. Astrophys.) ; Zaharijas, Gabrijela (Nova Gorica U.) ; Zhong, Yi-Ming (Chicago U., KICP) ; Zhou, Ning (Shanghai Jiaotong U.) ; Zhou, Xiaopeng (Beihang U.)
Imprint	2022-03-14
Number of pages	57
Note	57 pages, solicited white paper submitted to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021)
Presented at	2021 Snowmass Summer Study, Seattle, WA, United States, 11 - 20 July 2021, pp.
Subject category	hep-ex ; Particle Physics - Experiment ; astro-ph.HE ; Astrophysics and Astronomy ; hep-ph ; Particle Physics - Phenomenology
Abstract	Intriguing signals with excesses over expected backgrounds have been observed in many astrophysical and terrestrial settings, which could potentially have a dark matter origin. Astrophysical excesses include the Galactic Center GeV gamma-ray excess detected by the Fermi Gamma-Ray Space Telescope, the AMS antiproton and positron excesses, and the 511 and 3.5 keV X-ray lines. Direct detection excesses include the DAMA/LIBRA annual modulation signal, the XENON1T excess, and low-threshold excesses in solid state detectors. We discuss avenues to resolve these excesses, with actions the field can take over the next several years.
Other source	Inspire
Copyright/License	preprint: (License: arXiv nonexclusive-distrib 1.0)