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Sensitivity of the Cherenkov Telescope Array to a dark matter signal from the Galactic centre

Journal of Cosmology and Astroparticle Physics IOP Publishing 01 (2021) 057

Authors:

The Cherenkov Telescope Array Consortium, A Acharyya, R Adam, C Adams, I Agudo, A Aguirre-Santaella, R Alfaro, J Alfaro, C Alispach, R Aloisio, R Alves Batista, L Amati, G Ambrosi, EO Angüner, LA Antonelli, C Aramo, A Araudo, T Armstrong, F Arqueros, K Asano, Y Ascasíbar, M Ashley, C Balazs, O Ballester, A Baquero Larriva, V Barbosa Martins, M Barkov, U Barres de Almeida, JA Barrio, D Bastieri, J Becerra, G Beck, J Becker Tjus, W Benbow, M Benito, D Berge, E Bernardini, K Bernlöhr, A Berti, B Bertucci, V Beshley, B Biasuzzi, A Biland, E Bissaldi, J Biteau, O Blanch, J Blazek, F Bocchino, C Boisson, L Bonneau Arbeletche, P Bordas, Z Bosnjak, E Bottacini, V Bozhilov, J Bregeon, A Brill, T Bringmann, AM Brown, P Brun, F Brun, P Bruno, A Bulgarelli, M Burton, A Burtovoi, M Buscemi, R Cameron, M Capasso, A Caproni, R Capuzzo-Dolcetta, P Caraveo, R Carosi, A Carosi, S Casanova, E Cascone, F Cassol, F Catalani, D Cauz, M Cerruti, P Chadwick, S Chaty, A Chen, M Chernyakova, G Chiaro, A Chiavassa, M Chikawa, J Chudoba, M Çolak, V Conforti, R Coniglione, F Conte, JL Contreras, J Coronado-Blazquez, A Costa, H Costantini, G Cotter, P Cristofari, A D'Aì, F D'Ammando, LA Damone, MK Daniel, F Dazzi, A De Angelis, V De Caprio, R de Cássia dos Anjos, EM de Gouveia Dal Pino, B De Lotto, D De Martino, E de Oña Wilhelmi, F De Palma, V de Souza, C Delgado, AG Delgado Giler, D della Volpe, D Depaoli, T Di Girolamo, F Di Pierro, L Di Venere, S Diebold, A Dmytriiev, A Domínguez, A Donini, M Doro, J Ebr, C Eckner, TDP Edwards, TRN Ekoume, D Elsässer, C Evoli, D Falceta-Goncalves, E Fedorova, S Fegan, Q Feng, G Ferrand, G Ferrara, E Fiandrini, A Fiasson, M Filipovic, V Fioretti, M Fiori, L Foffano, G Fontaine, O Fornieri, FJ Franco, S Fukami, Y Fukui, D Gaggero, G Galaz, V Gammaldi, E Garcia, M Garczarczyk, D Gascon, A Gent, A Ghalumyan, F Gianotti, M Giarrusso, G Giavitto, N Giglietto, F Giordano, A Giuliani, J Glicenstein, R Gnatyk, P Goldoni, MM González, K Gourgouliatos, J Granot, D Grasso, J Green, A Grillo, O Gueta, S Gunji, A Halim, T Hassan, M Heller, S Hernández Cadena, N Hiroshima, B Hnatyk, W Hofmann, J Holder, D Horan, J Hörandel, P Horvath, T Hovatta, M Hrabovsky, D Hrupec, G Hughes, TB Humensky, M Hütten, M Iarlori, T Inada, S Inoue, F Iocco, M Iori, M Jamrozy, P Janecek, W Jin, L Jouvin, J Jurysek, E Karukes, K Katarzyński, D Kazanas, D Kerszberg, MC Kherlakian, R Kissmann, J Knödlseder, Y Kobayashi, K Kohri, N Komin, H Kubo, J Kushida, G Lamanna, J Lapington, P Laporte, MA Leigui de Oliveira, J Lenain, F Leone, G Leto, E Lindfors, T Lohse, S Lombardi, F Longo, A Lopez, M López, R López-Coto, S Loporchio, PL Luque-Escamilla, E Mach, C Maggio, G Maier, M Mallamaci, R Malta Nunes de Almeida, D Mandat, M Manganaro, S Mangano, G Manicò, M Marculewicz, M Mariotti, S Markoff, P Marquez, J Martí, O Martinez, M Martínez, G Martínez, H Martínez-Huerta, G Maurin, D Mazin, JD Mbarubucyeye, D Medina Miranda, M Meyer, M Miceli, T Miener, M Minev, JM Miranda, R Mirzoyan, T Mizuno, B Mode, R Moderski, L Mohrmann, E Molina, T Montaruli, A Moralejo, D Morcuende-Parrilla, A Morselli, R Mukherjee, C Mundell, A Nagai, T Nakamori, R Nemmen, J Niemiec, D Nieto, M Nikołajuk, D Ninci, K Noda, D Nosek, S Nozaki, Y Ohira, M Ohishi, Y Ohtani, T Oka, A Okumura, RA Ong, M Orienti, R Orito, M Orlandini, S Orlando, E Orlando, M Ostrowski, I Oya, I Pagano, A Pagliaro, M Palatiello, FR Pantaleo, JM Paredes, G Pareschi, N Parmiggiani, B Patricelli, L Pavletić, A Pe'er, M Pecimotika, J Pérez-Romero, M Persic, O Petruk, K Pfrang, G Piano, P Piatteli, E Pietropaolo, R Pillera, B Pilszyk, F Pintore, M Pohl, V Poireau, RR Prado, E Prandini, J Prast, G Principe, H Prokoph, M Prouza, H Przybilski, G Pühlhofer, ML Pumo, F Queiroz, A Quirrenbach, S Rainò, R Rando, S Razzaque, S Recchia, O Reimer, A Reisenegger, Y Renier, W Rhode, D Ribeiro, M Ribó, T Richtler, J Rico, F Rieger, L Rinchiuso, V Rizi, J Rodriguez, G Rodriguez Fernandez, JC Rodriguez Ramirez, G Rojas, P Romano, G Romeo, J Rosado, G Rowell, B Rudak, F Russo, I Sadeh, E Sæther Hatlen, S Safi-Harb, F Salesa Greus, G Salina, D Sanchez, M Sánchez-Conde, P Sangiorgi, H Sano, M Santander, EM Santos, R Santos-Lima, A Sanuy, S Sarkar, FG Saturni, U Sawangwit, F Schussler, U Schwanke, E Sciacca, S Scuderi, M Seglar-Arroyo, O Sergijenko, M Servillat, K Seweryn, A Shalchi, P Sharma, RC Shellard, H Siejkowski, J Silk, C Siqueira, V Sliusar, A Słowikowska, A Sokolenko, H Sol, S Spencer, A Stamerra, S Stanič, R Starling, T Stolarczyk, U Straumann, J Strišković, Y Suda, T Suomijarvi, P Świerk, F Tavecchio, L Taylor, LA Tejedor, M Teshima, V Testa, L Tibaldo, CJ Todero Peixoto, F Tokanai, D Tonev, G Tosti, L Tosti, N Tothill, S Truzzi, P Travnicek, V Vagelli, B Vallage, P Vallania, C van Eldik, J Vandenbroucke, GS Varner, V Vassiliev, M Vázquez Acosta, M Vecchi, S Ventura, S Vercellone, S Vergani, G Verna, A Viana, CF Vigorito, J Vink, V Vitale, S Vorobiov, I Vovk, T Vuillaume, SJ Wagner, R Walter, J Watson, C Weniger, R White, M White, R Wiemann, A Wierzcholska, M Will, DA Williams, R Wischnewski, S Yanagita, L Yang, T Yoshikoshi, M Zacharias, G Zaharijas, AA Zakaria, L Zampieri, R Zanin, D Zaric, M Zavrtanik, D Zavrtanik, AA Zdziarski, A Zech, H Zechlin, L Zehrer, VI Zhdanov, M Živec

Abstract:

We provide an updated assessment of the power of the Cherenkov Telescope Array (CTA) to search for thermally produced dark matter at the TeV scale, via the associated gamma-ray signal from pair-annihilating dark matter particles in the region around the Galactic centre. We find that CTA will open a new window of discovery potential, significantly extending the range of robustly testable models given a standard cuspy profile of the dark matter density distribution. Importantly, even for a cored profile, the projected sensitivity of CTA will be sufficient to probe various well-motivated models of thermally produced dark matter at the TeV scale. This is due to CTA's unprecedented sensitivity, angular and energy resolutions, and the planned observational strategy. The survey of the inner Galaxy will cover a much larger region than corresponding previous observational campaigns with imaging atmospheric Cherenkov telescopes. CTA will map with unprecedented precision the large-scale diffuse emission in high-energy gamma rays, constituting a background for dark matter searches for which we adopt state-of-the-art models based on current data. Throughout our analysis, we use up-to-date event reconstruction Monte Carlo tools developed by the CTA consortium, and pay special attention to quantifying the level of instrumental systematic uncertainties, as well as background template systematic errors, required to probe thermally produced dark matter at these energies.
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Observing Invisible Axions with Gravitational Waves

(2021)

Authors:

Marco Gorghetto, Edward Hardy, Horia Nicolaescu
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Framing energetic top-quark pair production at the LHC

(2021)

Authors:

Fabrizio Caola, Frédéric A Dreyer, Ross W McDonald, Gavin P Salam
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Multimessenger Gamma-Ray and Neutrino Coincidence Alerts using HAWC and IceCube sub-threshold Data

The Astrophysical Journal: an international review of astronomy and astronomical physics American Astronomical Society 906 (2021) 63-63

Authors:

HA Ayala Solares, S Coutu, JJ DeLaunay, DB Fox, T Grégoire, A Keivani, F Krauß, M Mostafá, K Murase, CF Turley, A Albert, R Alfaro, C Alvarez, JR Angeles Camacho, JC Arteaga-Velázquez, KP Arunbabu, D Avila Rojas, E Belmont-Moreno, C Brisbois, KS Caballero-Mora, A Carramiñana, S Casanova, U Cotti, E De la Fuente, R Diaz Hernandez, BL Dingus, MA DuVernois, M Durocher, JC Díaz-Vélez, C Espinoza, KL Fan, H Fleischhack, N Fraija, A Galván-Gámez, D Garcia, JA García-González, F Garfias, MM González, JA Goodman, JP Harding, B Hona, D Huang, F Hueyotl-Zahuantitla, PH untemeyer, A Iriarte, A Jardin-Blicq, V Joshi, H León Vargas, JT Linnemann, AL Longinotti, G Luis-Raya, J Lundeen, K Malone, O Martinez, I Martinez-Castellanos, J Martínez-Castro, JA Matthews, P Miranda-Romagnoli, E Moreno, L Nellen, M Newbold, MU Nisa, R Noriega-Papaqui, A Peisker, EG Pérez-Pérez, CD Rho, D Rosa-González, H Salazar, F Salesa Greus, A Sandoval, AJ Smith, RW Springer, K Tollefson, I Torres, R Torres-Escobedo, F Ureña-Mena, L Villaseñor, T Weisgarber, E Willox, A Zepeda, H Zhou, C de León, MG Aartsen, R Abbasi, M Ackermann, J Adams, JA Aguilar, M Ahlers, M Ahrens, C Alispach, NM Amin, K Andeen, T Anderson, I Ansseau, G Anton, C Argü elles, J Auffenberg, S Axani, H Bagherpour, X Bai, A Balagopal V, A Barbano, SW Barwick, B Bastian, V Basu, V Baum, S Baur, R Bay, JJ Beatty, K-H Becker, J Becker Tjus, S BenZvi, D Berley, E Bernardini, DZ Besson, G Binder, D Bindig, E Blaufuss, S Blot, C Bohm, SB öser, O Botner, JB öttcher, E Bourbeau, J Bourbeau, F Bradascio, J Braun, S Bron, J Brostean-Kaiser, A Burgman, J Buscher, RS Busse, T Carver, C Chen, E Cheung, D Chirkin, S Choi, BA Clark, K Clark, L Classen, A Coleman, GH Collin, JM Conrad, P Coppin, P Correa, DF Cowen, R Cross, P Dave, C De Clercq, H Dembinski, K Deoskar, S De Ridder, A Desai, P Desiati, KD de Vries, G de Wasseige, M de With, T DeYoung, S Dharani, A Diaz, H Dujmovic, M Dunkman, E Dvorak, T Ehrhardt, P Eller, R Engel, PA Evenson, S Fahey, AR Fazely, J Felde, A Fienberg, K Filimonov, C Finley, A Franckowiak, E Friedman, A Fritz, TK Gaisser, J Gallagher, E Ganster, S Garrappa, L Gerhardt, T Glauch, T Gl üsenkamp, A Goldschmidt, JG Gonzalez, D Grant, Z Griffith, S Griswold, MG ünder, MG ünd üz, C Haack, A Hallgren, R Halliday, L Halve, F Halzen, K Hanson, J Hardin, A Haungs, S Hauser, D Hebecker, D Heereman, P Heix, K Helbing, R Hellauer, F Henningsen, S Hickford, J Hignight, C Hill, GC Hill, KD Hoffman, R Hoffmann, T Hoinka, B Hokanson-Fasig, K Hoshina, F Huang, M Huber, T Huber, K Hultqvist, MH ünnefeld, R Hussain, S In, N Iovine, A Ishihara, M Jansson, GS Japaridze, M Jeong, BJP Jones, F Jonske, R Joppe, D Kang, W Kang, A Kappes, D Kappesser, T Karg, M Karl, A Karle, U Katz, M Kauer, M Kellermann, JL Kelley, A Kheirandish, J Kim, K Kin, T Kintscher, J Kiryluk, T Kittler, SR Klein, R Koirala, H Kolanoski, LK öpke, C Kopper, S Kopper, DJ Koskinen, P Koundal, M Kowalski, K Krings, G Krückl, N Kulacz, N Kurahashi, A Kyriacou, JL Lanfranchi, MJ Larson, F Lauber, JP Lazar, K Leonard, A Leszczyńska, Y Li, QR Liu, E Lohfink, CJ Lozano Mariscal, L Lu, F Lucarelli, A Ludwig, JL ünemann, W Luszczak, Y Lyu, WY Ma, J Madsen, G Maggi, KBM Mahn, Y Makino, P Mallik, S Mancina, IC Mariş, R Maruyama, K Mase, R Maunu, F McNally, K Meagher, M Medici, A Medina, M Meier, S Meighen-Berger, J Merz, T Meures, J Micallef, D Mockler, G Momenté, T Montaruli, RW Moore, R Morse, M Moulai, P Muth, R Nagai, U Naumann, G Neer, LV Nguyen, H Niederhausen, SC Nowicki, DR Nygren, A Obertacke Pollmann, M Oehler, A Olivas, A O'Murchadha, E O'Sullivan, H Pandya, DV Pankova, N Park, GK Parker, EN Paudel, P Peiffer, C Pérez de los Heros, S Philippen, D Pieloth, S Pieper, E Pinat, A Pizzuto, M Plum, Y Popovych, A Porcelli, M Prado Rodriguez, PB Price, GT Przybylski, C Raab, A Raissi, M Rameez, L Rauch, K Rawlins, IC Rea, A Rehman, R Reimann, B Relethford, M Renschler, G Renzi, E Resconi, W Rhode, M Richman, B Riedel, S Robertson, G Roellinghoff, M Rongen, C Rott, T Ruhe, D Ryckbosch, D Rysewyk Cantu, I Safa, SE Sanchez Herrera, A Sandrock, J Sandroos, M Santander, S Sarkar, S Sarkar, K Satalecka, M Scharf, M Schaufel, H Schieler, P Schlunder, T Schmidt, A Schneider, J Schneider, FG Schr öder, L Schumacher, S Sclafani, D Seckel, S Seunarine, S Shefali, M Silva, B Smithers, R Snihur, J Soedingrekso, D Soldin, M Song, GM Spiczak, C Spiering, J Stachurska, M Stamatikos, T Stanev, R Stein, J Stettner, A Steuer, T Stezelberger, RG Stokstad, NL Strotjohann, T Stürwald, T Stuttard, GW Sullivan, I Taboada, F Tenholt, S Ter-Antonyan, A Terliuk, S Tilav, L Tomankova, CT önnis, S Toscano, D Tosi, A Trettin, M Tselengidou, CF Tung, A Turcati, R Turcotte, B Ty, E Unger, MA Unland Elorrieta, M Usner, J Vandenbroucke, W Van Driessche, D van Eijk, N van Eijndhoven, D Vannerom, J van Santen, S Verpoest, M Vraeghe, C Walck, A Wallace, M Wallraff, TB Watson, C Weaver, A Weindl, MJ Weiss, J Weldert, C Wendt, J Werthebach, BJ Whelan, N Whitehorn, K Wiebe, CH Wiebusch, DR Williams, L Wills, M Wolf, TR Wood, K Woschnagg, G Wrede, J Wulff, XW Xu, Y Xu, JP Yanez, S Yoshida, T Yuan, Z Zhang, MZ öcklein

Abstract:

The High Altitude Water Cherenkov (HAWC) and IceCube observatories, through the Astrophysical Multimessenger Observatory Network (AMON) framework, have developed a multimessenger joint search for extragalactic astrophysical sources. This analysis looks for sources that emit both cosmic neutrinos and gamma rays that are produced in photo-hadronic or hadronic interactions. The AMON system is running continuously, receiving sub-threshold data (i.e. data that is not suited on its own to do astrophysical searches) from HAWC and IceCube, and combining them in real-time. We present here the analysis algorithm, as well as results from archival data collected between June 2015 and August 2018, with a total live-time of 3.0 years. During this period we found two coincident events that have a false alarm rate (FAR) of $<1$ coincidence per year, consistent with the background expectations. The real-time implementation of the analysis in the AMON system began on November 20th, 2019, and issues alerts to the community through the Gamma-ray Coordinates Network with a FAR threshold of $<4$ coincidences per year.
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A Test of the Cosmological Principle with Quasars

The Astrophysical Journal Letters, 2021, Volume 908, Issue 2, id.L51, 6 pp.

Authors:

Secrest, Nathan J.; von Hausegger, Sebastian; Rameez, Mohamed; Mohayaee, Roya; Sarkar, Subir; Colin, Jacques

Abstract:

We study the large-scale anisotropy of the universe by measuring the dipole in the angular distribution of a flux-limited, all-sky sample of 1.36 million quasars observed by the Wide-field Infrared Survey Explorer (WISE). This sample is derived from the new CatWISE2020 catalog, which contains deep photometric measurements at 3.4 and 4.6 μm from the cryogenic, post-cryogenic, and reactivation phases of the WISE mission. While the direction of the dipole in the quasar sky is similar to that of the cosmic microwave background (CMB), its amplitude is over twice as large as expected, rejecting the canonical, exclusively kinematic interpretation of the CMB dipole with a p-value of 5 × 10-7 (4.9σ for a normal distribution, one-sided), the highest significance achieved to date in such studies. Our results are in conflict with the cosmological principle, a foundational assumption of the concordance ΛCDM model.