Dark Matter Line Searches with the Cherenkov Telescope Array
High Energy Physics - Phenomenology
2024-07-24 v2 High Energy Astrophysical Phenomena
High Energy Physics - Experiment
Abstract
Monochromatic gamma-ray signals constitute a potential smoking gun signature for annihilating or decaying dark matter particles that could relatively easily be distinguished from astrophysical or instrumental backgrounds. We provide an updated assessment of the sensitivity of the Cherenkov Telescope Array (CTA) to such signals, based on observations of the Galactic centre region as well as of selected dwarf spheroidal galaxies. We find that current limits and detection prospects for dark matter masses above 300 GeV will be significantly improved, by up to an order of magnitude in the multi-TeV range. This demonstrates that CTA will set a new standard for gamma-ray astronomy also in this respect, as the world's largest and most sensitive high-energy gamma-ray observatory, in particular due to its exquisite energy resolution at TeV energies and the adopted observational strategy focussing on regions with large dark matter densities. Throughout our analysis, we use up-to-date instrument response functions, and we thoroughly model the effect of instrumental systematic uncertainties in our statistical treatment. We further present results for other potential signatures with sharp spectral features, e.g.~box-shaped spectra, that would likewise very clearly point to a particle dark matter origin.
Keywords
Cite
@article{arxiv.2403.04857,
title = {Dark Matter Line Searches with the Cherenkov Telescope Array},
author = {S. Abe and J. Abhir and A. Abhishek and F. Acero and A. Acharyya and R. Adam and A. Aguasca-Cabot and I. Agudo and A. Aguirre-Santaella and J. Alfaro and R. Alfaro and N. Alvarez-Crespo and R. Alves Batista and J. -P. Amans and E. Amato and G. Ambrosi and L. Angel and C. Aramo and C. Arcaro and T. T. H. Arnesen and L. Arrabito and K. Asano and Y. Ascasibar and J. Aschersleben and H. Ashkar and M. Backes and A. Baktash and C. Balazs and M. Balbo and A. Baquero Larriva and V. Barbosa Martins and U. Barres de Almeida and J. A. Barrio and I. Batković and R. Batzofin and J. Baxter and J. Becerra González and G. Beck and W. Benbow and D. Berge and E. Bernardini and J. Bernete and K. Bernlöhr and A. Berti and B. Bertucci and P. Bhattacharjee and S. Bhattacharyya and C. Bigongiari and A. Biland and E. Bissaldi and J. Biteau and O. Blanch and J. Blazek and F. Bocchino and C. Boisson and J. Bolmont and G. Bonnoli and A. Bonollo and P. Bordas and Z. Bosnjak and E. Bottacini and M. Böttcher and T. Bringmann and E. Bronzini and R. Brose and A. M. Brown and G. Brunelli and A. Bulgarelli and T. Bulik and I. Burelli and L. Burmistrov and M. Burton and M. Buscemi and T. Bylund and J. Cailleux and A. Campoy-Ordaz and B. K. Cantlay and G. Capasso and A. Caproni and R. Capuzzo-Dolcetta and P. Caraveo and S. Caroff and A. Carosi and R. Carosi and E. Carquin and M. -S. Carrasco and F. Cassol and L. Castaldini and N. Castrejon and A. J. Castro-Tirado and D. Cerasole and M. Cerruti and P. M. Chadwick and S. Chaty and A. W. Chen and M. Chernyakova and A. Chiavassa and J. Chudoba and L. Chytka and G. M. Cicciari and A. Cifuentes and C. H. Coimbra Araujo and M. Colapietro and V. Conforti and F. Conte and J. L. Contreras and A. Costa and H. Costantini and G. Cotter and P. Cristofari and O. Cuevas and Z. Curtis-Ginsberg and G. D'Amico and F. D'Ammando and S. Dai and M. Dalchenko and F. Dazzi and A. De Angelis and M. de Bony de Lavergne and V. De Caprio and E. M. de Gouveia Dal Pino and B. De Lotto and M. De Lucia and R. de Menezes and M. de Naurois and V. de Souza and L. del Peral and M. V. del Valle and A. G. Delgado Giler and J. Delgado Mengual and C. Delgado and M. Dell'aiera and D. della Volpe and D. Depaoli and T. Di Girolamo and A. Di Piano and F. Di Pierro and R. Di Tria and L. Di Venere and C. Díaz and S. Diebold and A. Dinesh and J. Djuvsland and R. M. Dominik and D. Dominis Prester and A. Donini and D. Dorner and J. Dörner and M. Doro and J. -L. Dournaux and C. Duangchan and C. Dubos and L. Ducci and V. V. Dwarkadas and J. Ebr and C. Eckner and K. Egberts and S. Einecke and D. Elsässer and G. Emery and M. Errando and C. Escanuela and P. Escarate and M. Escobar Godoy and J. Escudero and P. Esposito and S. Ettori and D. Falceta-Goncalves and E. Fedorova and S. Fegan and Q. Feng and G. Ferrand and F. Ferrarotto and E. Fiandrini and A. Fiasson and M. Filipovic and V. Fioretti and M. Fiori and L. Foffano and L. Font Guiteras and G. Fontaine and S. Fröse and Y. Fukazawa and Y. Fukui and A. Furniss and G. Galanti and G. Galaz and C. Galelli and S. Gallozzi and V. Gammaldi and M. Garczarczyk and C. Gasbarra and D. Gasparrini and A. Ghalumyan and F. Gianotti and M. Giarrusso and J. G. Giesbrecht Formiga Paiva and N. Giglietto and F. Giordano and R. Giuffrida and J. -F. Glicenstein and J. Glombitza and P. Goldoni and J. M. González and M. M. González and J. Goulart Coelho and T. Gradetzke and J. Granot and D. Grasso and R. Grau and L. Gréaux and D. Green and J. G. Green and G. Grolleron and L. M. V. Guedes and O. Gueta and J. Hackfeld and D. Hadasch and P. Hamal and W. Hanlon and S. Hara and V. M. Harvey and T. Hassan and K. Hayashi and B. Heß and L. Heckmann and M. Heller and S. Hernández Cadena and O. Hervet and J. Hinton and N. Hiroshima and B. Hnatyk and R. Hnatyk and W. Hofmann and J. Holder and D. Horan and P. Horvath and T. Hovatta and M. Hrabovsky and D. Hrupec and M. Iarlori and T. Inada and F. Incardona and S. Inoue and Y. Inoue and F. Iocco and M. Iori and K. Ishio and M. Jamrozy and P. Janecek and F. Jankowsky and P. Jean and J. Jimenez Quiles and W. Jin and C. Juramy-Gilles and J. Jurysek and M. Kagaya and O. Kalekin and V. Karas and H. Katagiri and J. Kataoka and S. Kaufmann and D. Kazanas and D. Kerszberg and D. B. Kieda and T. Kleiner and G. Kluge and Y. Kobayashi and K. Kohri and N. Komin and P. Kornecki and K. Kosack and G. Kowal and H. Kubo and J. Kushida and A. La Barbera and N. La Palombara and M. Láinez and A. Lamastra and J. Lapington and P. Laporte and S. Lazarević and J. Lazendic-Galloway and M. Lemoine-Goumard and J. -P. Lenain and F. Leone and E. Leonora and G. Leto and E. Lindfors and M. Linhoff and I. Liodakis and A. Lipniacka and S. Lombardi and F. Longo and R. López-Coto and M. López-Moya and A. López-Oramas and S. Loporchio and J. Lozano Bahilo and P. L. Luque-Escamilla and O. Macias and P. Majumdar and M. Mallamaci and D. Malyshev and D. Mandat and G. Manicò and M. Mariotti and I. Márquez and P. Marquez and G. Marsella and J. Martí and G. A. Martínez and M. Martínez and O. Martinez and C. Marty and A. Mas-Aguilar and M. Mastropietro and D. Mazin and S. Menchiari and E. Mestre and J. -L. Meunier and D. M. -A. Meyer and M. Meyer and D. Miceli and M. Miceli and M. Michailidis and J. Michałowski and T. Miener and J. M. Miranda and A. Mitchell and M. Mizote and T. Mizuno and R. Moderski and M. Molero and C. Molfese and E. Molina and T. Montaruli and A. Moralejo and D. Morcuende and A. Morselli and E. Moulin and V. Moya Zamanillo and K. Munari and T. Murach and A. Muraczewski and H. Muraishi and T. Nakamori and A. Nayak and R. Nemmen and J. P. Neto and L. Nickel and J. Niemiec and D. Nieto and M. Nievas Rosillo and M. Nikołajuk and L. Nikolić and K. Nishijima and K. Noda and D. Nosek and V. Novotny and S. Nozaki and M. Ohishi and Y. Ohtani and A. Okumura and J. -F. Olive and R. A. Ong and M. Orienti and R. Orito and M. Orlandini and E. Orlando and S. Orlando and M. Ostrowski and J. Otero-Santos and I. Oya and I. Pagano and A. Pagliaro and M. Palatiello and G. Panebianco and D. Paneque and F. R. Pantaleo and J. M. Paredes and N. Parmiggiani and B. Patricelli and A. Pe'er and M. Pech and M. Pecimotika and U. Pensec and M. Peresano and J. Pérez-Romero and M. Persic and K. P. Peters and O. Petruk and G. Piano and E. Pierre and E. Pietropaolo and M. Pihet and L. Pinchbeck and G. Pirola and C. Pittori and C. Plard and F. Podobnik and M. Pohl and V. Pollet and G. Ponti and E. Prandini and G. Principe and C. Priyadarshi and N. Produit and M. Prouza and E. Pueschel and G. Pühlhofer and M. L. Pumo and F. Queiroz and A. Quirrenbach and S. Rainò and R. Rando and S. Razzaque and M. Regeard and A. Reimer and O. Reimer and A. Reisenegger and W. Rhode and D. Ribeiro and M. Ribó and C. Ricci and T. Richtler and J. Rico and F. Rieger and L. Riitano and V. Rizi and E. Roache and G. Rodriguez Fernandez and M. D. Rodríguez Frías and J. J. Rodríguez-Vázquez and P. Romano and G. Romeo and J. Rosado and A. Rosales de Leon and G. Rowell and B. Rudak and A. J. Ruiter and C. B. Rulten and I. Sadeh and L. Saha and T. Saito and H. Salzmann and M. Sánchez-Conde and H. Sandaker and P. Sangiorgi and H. Sano and M. Santander and R. Santos-Lima and V. Sapienza and T. Šarić and A. Sarkar and S. Sarkar and F. G. Saturni and S. Savarese and A. Scherer and F. Schiavone and P. Schipani and B. Schleicher and P. Schovanek and J. L. Schubert and U. Schwanke and M. Seglar Arroyo and I. R. Seitenzahl and O. Sergijenko and M. Servillat and T. Siegert and H. Siejkowski and C. Siqueira and V. Sliusar and A. Slowikowska and H. Sol and S. T. Spencer and D. Spiga and A. Stamerra and S. Stanič and T. Starecki and R. Starling and Ł. Stawarz and C. Steppa and E. Sæther Hatlen and T. Stolarczyk and J. Strišković and Y. Suda and P. Świerk and H. Tajima and D. Tak and M. Takahashi and R. Takeishi and T. Tavernier and L. A. Tejedor and K. Terauchi and M. Teshima and V. Testa and W. W. Tian and L. Tibaldo and O. Tibolla and C. J. Todero Peixoto and F. Torradeflot and D. F. Torres and G. Tosti and N. Tothill and F. Toussenel and A. Tramacere and P. Travnicek and G. Tripodo and A. Trois and S. Truzzi and A. Tutone and L. Vaclavek and M. Vacula and P. Vallania and R. Vallés and C. van Eldik and J. van Scherpenberg and J. Vandenbroucke and V. Vassiliev and M. Vázquez Acosta and M. Vecchi and S. Ventura and S. Vercellone and G. Verna and A. Viana and N. Viaux and A. Vigliano and J. Vignatti and C. F. Vigorito and J. Villanueva and E. Visentin and V. Vitale and V. Vodeb and V. Voisin and V. Voitsekhovskyi and S. Vorobiov and G. Voutsinas and I. Vovk and T. Vuillaume and S. J. Wagner and R. Walter and M. White and R. White and A. Wierzcholska and M. Will and D. A. Williams and F. Wohlleben and A. Wolter and T. Yamamoto and L. Yang and T. Yoshida and T. Yoshikoshi and G. Zaharijas and L. Zampieri and R. Zanmar Sanchez and D. Zavrtanik and M. Zavrtanik and A. A. Zdziarski and A. Zech and W. Zhang and V. I. Zhdanov and K. Ziętara and M. Živec and J. Zuriaga-Puig},
journal= {arXiv preprint arXiv:2403.04857},
year = {2024}
}
Comments
44 pages JCAP style (excluding author list and references), 19 figures; minor changes to match published version