Prospects for dark matter observations in dwarf spheroidal galaxies with the Cherenkov Telescope Array Observatory

(2025)

Authors:

K Abe, S Abe, J Abhir, A Abhishek, F Acero, A Acharyya, R Adam, A Aguasca-Cabot, I Agudo, A Aguirre-Santaella, J Alfaro, R Alfaro, C Alispach, R Alves Batista, J-P Amans, E Amato, G Ambrosi, D Ambrosino, F Ambrosino, L Angel, LA Antonelli, C Aramo, C Arcaro, K Asano, Y Ascasibar, L Augusto Stuani, M Backes, C Balazs, M Balbo, A Baquero Larriva, V Barbosa Martins, JA Barrio, L Barrios-Jiménez, C Bartolini, PI Batista, I Batković, R Batzofin, J Becerra González, G Beck, J Becker Tjus, W Benbow, D Berge, E Bernardini, J Bernete, A Berti, B Bertucci, V Beshley, P Bhattacharjee, S Bhattacharyya, C Bigongiari, A Biland, E Bissaldi, O Blanch, J Blazek, G Bonnoli, A Bonollo, Z Bosnjak, E Bottacini, M Böttcher, T Bringmann, E Bronzini, R Brose, G Brunelli, J Buces Sáez, M Bunse, L Burmistrov, M Burton, PG Calisse, A Campoy-Ordaz, BK Cantlay, G Capasso, A Caproni, R Capuzzo-Dolcetta, P Caraveo, S Caroff, R Carosi, E Carquin, M-S Carrasco, E Cascone, G Castignani, AJ Castro-Tirado, D Cerasole, M Cerruti, A Cervià O Cortínez, PM Chadwick, Y Chai, S Chaty, AW Chen, Y Chen, M Chernyakova, A Chiavassa, G Chon, J Chudoba, GM Cicciari, A Cifuentes, CH Coimbra Araujo, M Colapietro, V Conforti, JL Contreras, B Cornejo, J Cortina, A Costa, H Costantini, G Cotter, P Cristofari, O Cuevas, Z Curtis-Ginsberg, G D'Amico, F D'Ammando, L David, F Dazzi, A De Angelis, M de Bony de Lavergne, F De Frondat Laadim, EM de Gouveia Dal Pino, B De Lotto, M de Naurois, G De Palma, V de Souza, R Del Burgo, L del Peral, MV del Valle, C Delgado, D della Volpe, D Depaoli, T Di Girolamo, A Di Piano, F Di Pierro, R Di Tria, L Di Venere, S Diebold, A Dinesh, J Djuvsland, A Donini, J Dörner, M Doro, C Duangchan, L Ducci, VV Dwarkadas, J Ebr, C Eckner, K Egberts, D Elsässer, G Emery, C Escaà uela Nieves, P Escarate, M Escobar Godoy, P Esposito, S Ettori, D Falceta-Goncalves, E Fedorova, S Fegan, Q Feng, G Ferrand, F Ferrarotto, E Fiandrini, A Fiasson, M Filipovic, V Fioretti, L Foffano, G Fontaine, F Frías García-Lago, Y Fukazawa, Y Fukui, A Furniss, G Galanti, G Galaz, S Gallozzi, V Gammaldi, S García Soto, M Garczarczyk, C Gasbarra, D Gasparrini, M Gaug, S Germani, A Ghalumyan, F Gianotti, JG Giesbrecht Formiga Paiva, N Giglietto, F Giordano, R Giuffrida, J-F Glicenstein, J Glombitza, P Goldoni, JM González, J Goulart Coelho, T Gradetzke, J Granot, L Gréaux, D Green, JG Green, G Grolleron, LMV Guedes, O Gueta, D Hadasch, P Hamal, W Hanlon, S Hara, VM Harvey, T Hassan, K Hayashi, B Heß, L Heckmann, M Heller, N Hiroshima, B Hnatyk, R Hnatyk, D Hoffmann, W Hofmann, D Horan, P Horvath, D Hrupec, S Hussain, M Iarlori, T Inada, F Incardona, S Inoue, Y Inoue, F Iocco, A Iuliano, Jahanvi, M Jamrozy, P Janecek, F Jankowsky, C Jarnot, I Jaroschewski, P Jean, I Jimà nez Martínez, W Jin, J Jurysek, O Kalekin, V Karas, J Kataoka, S Kaufmann, D Kazanas, T Keita, D Kerszberg, DB Kieda, R Kissmann, W Kluźniak, K Kohri, D Kolar, N Komin, P Kornecki, G Kowal, H Kubo, J Kushida, A La Barbera, N La Palombara, B Lacave, M Láinez, A Lamastra, J Lapington, S Lazarević, J-P Lenain, F Leone, E Leonora, Y Li, E Lindfors, M Linhoff, S Lombardi, F Longo, R López-Coto, M López-Moya, A López-Oramas, S Loporchio, J Lozano Bahilo, H Luciani, PL Luque-Escamilla, E Lyard, O Macias, J Mackey, P Majumdar, D Malyshev, D Mandat, S Mangano, G Manicò, A Marchetti, M Mariotti, I Márquez, G Marsella, D Martín Domínguez, GA Martínez, M Martínez, O Martinez, D Mazin, AJTS Mello, J Mà ndez Gallego, S Menon, S Mereghetti, DM-A Meyer, M Meyer, D Miceli, M Miceli, M Michailidis, T Miener, JM Miranda, A Mitchell, M Molero, C Molfese, M Molina Delicado, E Molina, T Montaruli, A Moralejo, A Moreno Ramos, A Morselli, E Moulin, V Moya Zamanillo, K Munari, T Murach, A Muraczewski, H Muraishi, T Nakamori, R Nemmen, JP Neto, J Niemiec, D Nieto, M Nievas Rosillo, M Nikołajuk, K Nishijima, K Noda, D Nosek, V Novotny, S Nozaki, A Okumura, J-F Olive, RA Ong, R Orito, M Orlandini, E Orlando, S Orlando, J Otero-Santos, I Oya, M Ozlati Moghadam, A Pagliaro, M Palatiello, A Pandey, G Panebianco, D Paneque, FR Pantaleo, R Paoletti, JM Paredes, N Parmiggiani, B Patricelli, M Pech, M Pecimotika, M Peresano, A Pà rez Aguilera, J Pà rez-Romero, G Peron, F Perrotta, M Persic, O Petruk, F Pfeifle, E Pietropaolo, L Pinchbeck, F Pintore, G Pirola, C Pittori, F Podobnik, M Pohl, V Poireau, V Pollet, G Ponti, C Pozo González, E Prandini, G Principe, M Prouza, E Pueschel, G Pühlhofer, ML Pumo, A Quirrenbach, S Rainò, R Rando, S Recchia, M Regeard, A Reimer, O Reimer, I Reis, A Reisenegger, W Rhode, M Ribó, C Ricci, T Richtler, J Rico, F Rieger, L Riitano, C Ríos, V Rizi, E Roache, G Rodríguez-Fernández, MD Rodríguez Frías, JJ Rodríguez-Vázquez, P Romano, G Romeo, J Rosado, A Rosales de Leon, G Rowell, A Roy, B Rudak, A Ruina, E Ruiz-Velasco, FS Queiroz, I Sadeh, L Saha, H Salzmann, M Sánchez-Conde, P Sangiorgi, H Sano, R Santos-Lima, V Sapienza, S Sarkar, FG Saturni, S Savarese, V Savchenko, A Scherer, F Schiavone, P Schipani, F Schussler, D Sengupta, O Sergijenko, V Sguera, H Siejkowski, G Silvestri, A Simongini, C Siqueira, V Sliusar, I Sofia, H Sol, D Spiga, S Spinello, A Stamerra, S Stanič, T Starecki, R Starling, T Stolarczyk, Y Suda, H Tajima, M Takahashi, R Takeishi, SJ Tanaka, LA Tejedor, M Teshima, V Testa, WW Tian, L Tibaldo, O Tibolla, SJ Tingay, F Tombesi, D Tonev, F Torradeflot, DF Torres, N Tothill, A Tramacere, P Travnicek, A Trois, S Truzzi, A Tutone, M Vacula, C van Eldik, J Vandenbroucke, V Vassiliev, M Và zquez Acosta, M Vecchi, S Ventura, S Vercellone, G Verna, I Viale, A Viana, N Viaux, A Vigliano, J Vignatti, CF Vigorito, E Visentin, V Vitale, V Voitsekhovskyi, S Vorobiov, G Voutsinas, R Walter, M Wechakama, M White, A Wierzcholska, F Wohlleben, F Xotta, R Yamazaki, Y Yao, T Yoshikoshi, D Zavrtanik, M Zavrtanik, A Zech, W Zhang, VI Zhdanov, M Živec, J Zuriaga-Puig

Characterizing IceTop Response to Low-Energy Air Showers

ArXiv 2510.10485 (2025)

Authors:

Yanee Tangjai, Agnieszka Leszczynska, Tatphicha Promfu, Achara Seripienlert, Serap Tilav

Dark matter EFT landscape probed by QUEST-DMC

Journal of Cosmology and Astroparticle Physics IOP Publishing 2025:10 (2025) 44

Authors:

N Darvishi, S Autti, L Bloomfield, A Casey, N Eng, Paolo Franchini, Rp Haley, Pj Heikkinen, A Jennings, A Kemp, Elizabeth Leason, John March-Russell, A Mayer, Jocelyn Monroe, D Münstermann, Mt Noble, Jr Prance, X Rojas, T Salmon, J Saunders, J Smirnov, R Smith, Md Thompson, A Thomson, A Ting, V Tsepelin, Sm West, L Whitehead, De Zmeev

Abstract:

We present the projected sensitivity to non-relativistic Effective Field Theory (EFT) operators for dark matter (DM) direct detection using the QUEST-DMC experiment. QUEST-DMC employs superfluid Helium-3 as a target medium and measures energy deposition via nanomechanical resonators with SQUID-based readout to probe DM interactions. The experiment aims to explore new parameter space in the sub-GeV mass range, probing light DM and a broad range of interaction models. We analyse the sensitivity to a complete set of fourteen independent non-relativistic EFT operators, each parameterised by a Wilson coefficient that quantifies the strength of DM interactions with Standard Model particles. For each interaction channel, we determine the corresponding sensitivity ceiling due to attenuation of the DM flux incident on the detector, caused by DM scattering in the Earth and atmosphere. As a key component of this analysis, we provide the mapping between the non-relativistic EFT operators and the relativistic bilinear DM-nucleon interactions, and assess the interaction sensitivity to sub-GeV DM in the QUEST-DMC detector. Our findings demonstrate that QUEST-DMC provides a unique probe of DM interactions, particularly in previously unexplored parameter space for momentum- and velocity-dependent interactions, thereby expanding the search for viable DM candidates beyond traditional weakly interacting massive particles.

HOPPET v2.0.0 release note

(2025)

Authors:

Alexander Karlberg, Paolo Nason, Gavin Salam, Giulia Zanderighi, Frà dà ric Dreyer

Supercooled confinement

Journal of High Energy Physics Springer Science and Business Media LLC 2025:10 (2025) 66

Authors:

Prateek Agrawal, Gaurang Ramakant Kane, Vazha Loladze, Mario Reig

Abstract:

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>We study general properties of confinement phase transitions in the early universe. An observable gravitational wave signal from such transitions requires significant supercooling. However, in almost all understood examples of confining gauge theories the degree of supercooling is too small to give interesting gravitational wave signals. We review and highlight the evidence why supercooling is not generic in confining gauge theories. The exceptions are Randall-Sundrum models which define a strongly coupled gauge theory holographically by a 5D gravitational theory. We construct a simple illustrative model of a 4D gauge theory inspired by features of the Randall-Sundrum model. It is a large-<jats:italic>N</jats:italic> gauge theory in the conformal window coupled to a weakly coupled scalar field which undergoes a supercooled phase transition that breaks the conformal symmetry and triggers confinement. We show that there are interesting features in the gravitational wave spectra that can carry the imprint of the confining gauge theory.</jats:p>