Constraining the Local Burst Rate Density of Primordial Black Holes with HAWC
Creators: name: Albert, A.
name: Alfaro, R.
name: Alvarez, C.
name: Arteaga-Velázquez, J. C.
name: Arunbabu, K. P.
name: Rojas, D. Avila
name: Solares, H. A. Ayala
name: Baghmanyan, V.
name: Belmont-Moreno, E.
name: BenZvi, S. Y.
name: Brisbois, C.
name: Caballero-Mora, K. S.
name: Capistrán, T.
name: Carramiñana, A.
name: Casanova, S.
name: Cotti, U.
name: Cotzomi, J.
name: De la Fuente, E.
name: de León, C.
name: Dingus, B. L.
name: DuVernois, M. A.
name: Díaz-Vélez, J. C.
name: Ellsworth, R. W.
name: Engel, K. L.
name: Espinoza, C.
name: Fleischhack, H.
name: Fraija, N.
name: Galván-Gámez, A.
name: García-González, J. A.
name: Garfias, F.
name: González, M. M.
name: Goodman, J. A.
name: Harding, J. P.
name: Hernandez, S.
name: Hona, B.
name: Huang, D.
name: Hueyotl-Zahuantitla, F.
name: Hüntemeyer, P.
name: Iriarte, A.
name: Joshi, V.
name: Lara, A.
name: Lee, W. H.
name: Vargas, H. León
name: Linnemann, J. T.
name: Longinotti, A. L.
name: Luis-Raya, G.
name: Lundeen, J.
name: López-Coto, R.
name: Malone, K.
name: Marinelli, S. S.
name: Martinez, O.
name: Martinez-Castellanos, I.
name: Martínez-Castro, J.
name: Martínez-Huerta, H.
name: Matthews, J. A.
name: Miranda-Romagnoli, P.
name: Morales-Soto, J. A.
name: Moreno, E.
name: Mostafá, M.
name: Nayerhoda, A.
name: Nellen, L.
name: Newbold, M.
name: Nisa, M. U.
name: Noriega-Papaqui, R.
name: Peisker, A.
name: Pérez-Pérez, E. G.
name: Rho, C. D.
name: Rivière, C.
name: Rosa-González, D.
name: Rosenberg, M.
name: Salazar, H.
name: Greus, F. Salesa
name: Sandoval, A.
name: Schneider, M.
name: Sinnis, G.
name: Smith, A. J.
name: Springer, R. W.
name: Tabachnick, E.
name: Tanner, M.
name: Tibolla, O.
name: Tollefson, K.
name: Torres, I.
name: Torres-Escobedo, R.
name: Weisgarber, T.
name: Wood, J.
name: Zepeda, A.
name: Zhou, H.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences
subject: 85-05

description: Primordial Black Holes (PBHs) may have been created by density fluctuations in the early Universe and could be as massive as $&gt; 10^9$ solar masses or as small as the Planck mass. It has been postulated that a black hole has a temperature inversely-proportional to its mass and will thermally emit all species of fundamental particles via Hawking Radiation. PBHs with initial masses of $\sim 5 \times 10^{14}$ g (approximately one gigaton) should be expiring today with bursts of high-energy gamma radiation in the GeV--TeV energy range. The High Altitude Water Cherenkov (HAWC) Observatory is sensitive to gamma rays with energies of $\sim$300 GeV to past 100 TeV, which corresponds to the high end of the PBH burst spectrum. With its large instantaneous field-of-view of $\sim 2$ sr and a duty cycle over 95%, the HAWC Observatory is well suited to perform an all-sky search for PBH bursts. We conducted a search using 959 days of HAWC data and exclude the local PBH burst rate density above $3400~\mathrm{pc^{-3}~yr^{-1}}$ at 99% confidence, the strongest limit on the local PBH burst rate density from any existing electromagnetic measurement.
description: Corresponding authors: K.L. Engel &amp; A. Peisker. 13 pages, 5 figures