Search for gamma-ray spectral lines from dark matter annihilation in dwarf galaxies with the High-Altitude Water Cherenkov observatory

Albert A, Alfaro R, Alvarez C, Arteaga-Velazquez JC, Arunbabu KP, Avila Rojas D, Solares HAA, Belmont-Moreno E, Benzvi SY, Brisbois C, Caballero-Mora KS, Capistran T, Carraminana A, Casanova S, Cotti U, Cotzomi J, Coutino De Leon S, De La Fuente E, Dichiara S, Dingus BL, Duvernois MA, Diaz-Velez JC, Engel K, Espinoza C, Fraija N, Galvan-Gamez A, Garcia-Gonzalez JA, Garfias F, Gonzalez MM, Goodman JA, Harding JP, Hernandez S, Hona B, Huang D, Huentemeyer P, Hueyotl-Zahuantitla F, Iriarte A, Joshi V, Lara A, Leon Vargas H, Linnemann JT, Longinotti AL, Luis-Raya G, Lundeen J, Malone K, Marinelli SS, Martinez O, Martinez-Castellanos , Martinez-Castro J, Matthews JA, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Mostafa M, Nayerhoda A, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Peisker A, Perez-Perez EG, Rho CD, Rosa-Gonzalez D, Rosenberg M, Salazar H, Greus FS, Sandoval A, Schneider M, Springer RW, Tabachnick E, Tibolla O, Tollefson K, Torres I, Torres-Escobedo R, Weisgarber T, Wood J, Zepeda A, Zhou H, De Leon C (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 101

Journal Issue: 10

DOI: 10.1103/PhysRevD.101.103001

Abstract

Local dwarf spheroidal galaxies (dSphs) are nearby dark-matter dominated systems, making them excellent targets for searching for gamma rays from particle dark matter interactions. If dark matter annihilates or decays directly into two gamma rays (or a gamma ray and a neutral particle), a monochromatic spectral line is created. At TeV energies, no other process is predicted to produce spectral lines, making this a very clean indirect dark matter search channel. With the development of event-by event energy reconstruction, we can now search for spectral lines with the High Altitude Water Cherenkov (HAWC) Observatory. HAWC is a wide field of view survey instrument located in central Mexico that observes gamma rays from similar to 200 GeV to similar to 200 TeV. In this work we present results from a recent search for spectral lines from local, dark matter dominated, dwarf galaxies using 1038 days of HAWC data. We also present updated limits on several continuum channels that were reported in a previous publication. Our gamma-ray spectral line limits are the most constraining obtained so far from 20 TeV to 100 TeV.

Authors with CRIS profile

Involved external institutions

Universidad de Guadalajara (UDEG) MX Mexico (MX) National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM) MX Mexico (MX) Polska Akademia Nauk (PAN) / Polish Academy of Sciences PL Poland (PL) University of Maryland US United States (USA) (US) Los Alamos National Laboratory US United States (USA) (US) Michigan Technological University US United States (USA) (US) Michigan State University US United States (USA) (US) National Institute for Astrophysics / Istituto Nazionale Astrofisica (INAF) IT Italy (IT) Universidad Autónoma de Chiapas (UNACH) MX Mexico (MX) Universidad Politécnica de Pachuca (UPP) MX Mexico (MX) Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) MX Mexico (MX) Benemérita Universidad Autónoma de Puebla (BUAP) / Meritorious Autonomous University of Puebla MX Mexico (MX) Pennsylvania State University (Penn State) US United States (USA) (US) University of Utah US United States (USA) (US) University of Rochester (UR) US United States (USA) (US) University of Wisconsin - Madison US United States (USA) (US) National Polytechnic Institute of Mexico / Instituto Politécnico Nacional de México MX Mexico (MX) University of New Mexico (UNM) / Universidad de Nuevo México US United States (USA) (US) Autonomous University of the State of Hidalgo / Universidad Autónoma del Estado de Hidalgo MX Mexico (MX) Center for Research and Advanced Studies of the National Polytechnic Institute / Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) MX Mexico (MX)

How to cite

APA:

Albert, A., Alfaro, R., Alvarez, C., Arteaga-Velazquez, J.C., Arunbabu, K.P., Avila Rojas, D.,... De Leon, C. (2020). Search for gamma-ray spectral lines from dark matter annihilation in dwarf galaxies with the High-Altitude Water Cherenkov observatory. Physical Review D, 101(10). https://doi.org/10.1103/PhysRevD.101.103001

MLA:

Albert, A., et al. "Search for gamma-ray spectral lines from dark matter annihilation in dwarf galaxies with the High-Altitude Water Cherenkov observatory." Physical Review D 101.10 (2020).

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