Return of the WIMP: Missing energy signals and the Galactic Center excess

Carena, Marcela; Osborne, James; Shah, Nausheen R.; Wagner, Carlos E. M.

doi:10.1103/PhysRevD.100.055002

Title: Return of the WIMP: Missing energy signals and the Galactic Center excess

Journal Article · Tue Sep 03 00:00:00 EDT 2019 · Physical Review. D.

DOI:https://doi.org/10.1103/PhysRevD.100.055002· OSTI ID:1560292

Carena, Marcela;

; Shah, Nausheen R.; Wagner, Carlos E. M.

In a recent work, we emphasized that an excess in tri-lepton events plusmissing energy observed by the ATLAS experiment at the LHC could be interpreted asa signal of low energy supersymmetry. In such a scenario the lightest neutralino massis approximatelymχ≃60 GeV and the direct Dark Matter detection cross section isnaturally below the current bound. In this work we present simple extensions of thisscenario that lead to an explanation of the gamma ray excess at the center of the galaxyobserved by Fermi-LAT, as well as the anti-proton excess observed by AMS-02. Theseextensions include the addition of a small CP violating phase in the neutralino sector orthe addition of a light CP-odd Higgs scalar. Our study is of special relevance in view ofa recent analysis that casts doubt on the previously accepted preference for mili-secondpulsars as the origin of the galactic center excess

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Univ. of Chicago, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP)

Grant/Contract Number:: AC02-07CH11359; AC02-06CH11357; SC0007983; FG02-13ER41958; SC0009924

OSTI ID:: 1560292

Alternate ID(s):: OSTI ID: 1545085; OSTI ID: 1593860

Report Number(s):: arXiv:1905.03768; FERMILAB-PUB-19-199-T; EFI-19-8; WSU-HEP-1904; PRVDAQ; 055002

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Vol. 100 Journal Issue: 5; ISSN 2470-0010

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 14 works

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