Limits on the Diffuse Gamma-Ray Background with HAWC

Abeysekara AU, Albert A, Alfaro R, Alvarez C, Álvarez JD, Angeles Camacho JR, Arteaga-Velázquez JC, Arunbabu KP, Avila Rojas D, Ayala Solares HA, Babu R, Baghmanyan V, Barber AS, Becerra Gonzalez J, Belmont-Moreno E, BenZvi SY, Berley D, Brisbois C, Caballero-Mora KS, Capistrán T, Carramiñana A, Casanova S, Chaparro-Amaro O, Cotti U, Cotzomi J, Coutiño de León S, De la Fuente E, de León C, Diaz-Cruz L, Diaz Hernandez R, Díaz-Vélez JC, Dingus BL, Durocher M, DuVernois MA, Ellsworth RW, Engel K, Espinoza C, Fan KL, Fang K, Fernández Alonso M, Fick B, Fleischhack H, Flores JL, Fraija NI, Garcia D, García-González JA, García-Luna JL, García-Torales G, Garfias F, Giacinti G, Goksu H, González MM, Goodman JA, Harding JP, Hernandez S, Herzog I, Hinton J, Hona B, Huang D, Hueyotl-Zahuantitla F, Hui CM, Humensky B, Hüntemeyer P, Iriarte A, Jardin-Blicq A, Jhee H, Joshi V, Kieda D, Kunde GJ, Kunwar S, Lara A, Lee J, Lee WH, Lennarz D, León Vargas H, Linnemann J, Longinotti AL, López-Coto R, Luis-Raya G, Lundeen J, Malone K, Marandon V, Martinez O, Martinez-Castellanos I, Martínez-Huerta H, Martínez-Castro J, Matthews JA, McEnery J, Miranda-Romagnoli P, Morales-Soto JA, Moreno E, Mostafá M, Nayerhoda A, Nellen L, Newbold M, Nisa MU, Noriega-Papaqui R, Olivera-Nieto L, Omodei N, Peisker A, Pérez Araujo Y, Pérez-Pérez EG, Rho CD, Rivière C, Rosa-Gonzalez D, Ruiz-Velasco E, Ryan J, Salazar H, Salesa Greus F, Sandoval A, Schneider M, Schoorlemmer H, Serna-Franco J, Sinnis G, Smith AJ, Springer RW, Surajbali P, Taboada I, Tanner M, Tollefson K, Torres I, Torres-Escobedo R, Turner R, Ureña-Mena F, Villaseñor L, Wang X, Watson IJ, Weisgarber T, Werner F, Willox E, Wood J, Yodh GB, Zepeda A, Zhou H (2022)

Publication Type: Conference contribution

Publication year: 2022

Journal

Publisher: Sissa Medialab Srl

Book Volume: 395

Conference Proceedings Title: Proceedings of Science

Event location: Virtual, Berlin, DEU

Abstract

The high-energy Diffuse Gamma-Ray Background (DGRB) is expected to be produced by unresolved extra-galactic objects such as active galactic nuclei, starburst galaxies and gamma-ray bursts. At TeV energies, observations or stringent limits on the DGRB could have significant multi-messenger implications, such as constraining the origin of TeV-PeV astrophysical neutrinos detected by IceCube. With its continuous sensitivity to gamma rays from a few hundred GeV to several hundred TeV and its wide field-of-view, the High Altitude Water Cherenkov (HAWC) observatory is well-suited to significantly improve searches for the DGRB. In this work, strict cuts have been applied to the HAWC dataset to better isolate gamma-ray air showers from background hadronic showers. The sensitivity to the DGRB was then verified using 535 days of Crab data and Monte Carlo simulations, leading to new limits on the DGRB >10 TeV.

Authors with CRIS profile

Involved external institutions

University of Utah United States (USA) (US) Los Alamos National Laboratory United States (USA) (US) National Autonomous University of Mexico / Universidad Nacional Autónoma de México (UNAM) Mexico (MX) Universidad de Guadalajara (UDEG) Mexico (MX) Universidad Autónoma de Chiapas (UNACH) Mexico (MX) Universidad Michoacana de San Nicolás de Hidalgo (UMSNH) Mexico (MX) University of Wisconsin - Madison United States (USA) (US) Institute of Nuclear Physics Polish Academy of Sciences / Instytut Fizyki Jądrowej im. Henryka Niewodniczańskiego Polskiej Akademii Nauk Poland (PL) Pennsylvania State University (Penn State) United States (USA) (US) University of Maryland United States (USA) (US) Max-Planck-Institut für Kernphysik (MPIK) / Max Planck Institute for Nuclear Physics Germany (DE) National Aeronautics and Space Administration (NASA) United States (USA) (US) Autonomous University of the State of Hidalgo / Universidad Autónoma del Estado de Hidalgo Mexico (MX) Benemérita Universidad Autónoma de Puebla (BUAP) / Meritorious Autonomous University of Puebla Mexico (MX) Michigan State University United States (USA) (US) Stanford University United States (USA) (US) Universidad Politécnica de Pachuca (UPP) Mexico (MX) University of Seoul (UOS) / 서울시립대학교 Korea, Republic of (KR) National Institute of Astrophysics, Optics and Electronics / Instituto Nacional de Astrofísica, Óptica y Electrónica (INAOE) Mexico (MX) Michigan Technological University United States (USA) (US) Tecnológico de Monterrey (ITESM) Mexico (MX) National Polytechnic Institute of Mexico / Instituto Politécnico Nacional de México Mexico (MX) Georgia Institute of Technology United States (USA) (US) Shanghai Jiao Tong University / 上海交通大学 China (CN) University of California Irvine United States (USA) (US) University of New Hampshire United States (USA) (US) National Institute for Nuclear Physics / Istituto Nazionale di Fisica Nucleare (INFN) Italy (IT) Universidad de Monterrey (UDEM) Mexico (MX) University of Rochester (UR) United States (USA) (US) University of New Mexico (UNM) / Universidad de Nuevo México United States (USA) (US)

How to cite

APA:

Abeysekara, A.U., Albert, A., Alfaro, R., Alvarez, C., Álvarez, J.D., Angeles Camacho, J.R.,... Zhou, H. (2022). Limits on the Diffuse Gamma-Ray Background with HAWC. In Proceedings of Science. Virtual, Berlin, DEU: Sissa Medialab Srl.

MLA:

Abeysekara, A. U., et al. "Limits on the Diffuse Gamma-Ray Background with HAWC." Proceedings of the 37th International Cosmic Ray Conference, ICRC 2021, Virtual, Berlin, DEU Sissa Medialab Srl, 2022.

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