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Bibliographic Details
Main Authors: Arza, Ariel, Aybas, Deniz, Balaji, Shyam, Balkin, Reuven, Bartnick, Kai, Baynham, Charles F. A., Bloch, Itay M., Bonati, Claudio, Budker, Dmitry, Burrage, Clare, Buschmann, Malte, Calore, Francesca, Candón, Francisco R., Carenza, Pierluca, Cetin, Serkant Ali, Chadha-Day, Francesca, Chakraborti, Sreemanti, Choi, Kiwoon, Cicoli, Michele, Cong, Lei, Conlon, Joseph P., Constantin, Florin Lucian, Correia, José, De Dominicis, Claudia, de Giorgi, Arturo, Luque, Pedro De la Torre, De Miguel, Javier, D'Eramo, Francesco, Díaz-Morcillo, Alejandro, Diego-Palazuelos, Patricia, Díez-Ibáñez, David, Di Luzio, Luca, Drew, Amelia, Döbrich, Babette, Eckner, Christopher, Ejlli, Aldo, Ellis, Sebastian A. R., Esposito, Angelo, Ferreira, Elisa, Iachellini, Nahuel Ferreiro, Fiorillo, Damiano F. G., Galaverni, Matteo, Gallinaro, Michele, García-Cely, Camilo, Gasparotto, Silvia, Gatti, Claudio, Gavilan-Martin, Daniel, Giannotti, Maurizio, Gimeno, Benito, Gorghetto, Marco, di Cortona, Giovanni Grilli, Gué, Jordan, Higgins, Gerard, Horns, Dieter, Kaltschmidt, Mathieu, Karuza, Marin, Kozhuharov, Venelin, Kunc, Stepan, Lecce, Francesca, Lella, Alessandro, Lindner, Axel, Lombardo, Maria Paola, Lucente, Giuseppe, Maliaka, Olympia, Margalejo, Cristina, Maroudas, Marios, Marsicano, Luca, Merlo, Luca, Mirizzi, Alessandro, Mitsou, Vasiliki A., Mueller, Guido, Murai, Kai, Namikawa, Toshiya, Naokawa, Fumihiro, Nguyen, Le Hoang, O'Hare, Ciaran, O'Shea, Tomas, Obata, Ippei, Övgün, Ali, Pedro, Francisco Gil, Pierobon, Giovanni, Poddar, Tanmay Kumar, Pradler, Josef, Pugnat, Pierre, Puliçe, Beyhan, Quishpe, Raquel, Raffelt, Georg G., Ramos, Maria, Ratzinger, Wolfram, Regis, Marco, Reig, Mario, Renner, Sophie, Rettaroli, Alessio, Righi, Nicole, Ringwald, Andreas, Roberts, Laura R., Rogers, Keir K., Rokn, Qazal, Ruimi, Ophir M., Ruz, Jaime, Saikawa, Kenichi, Scalisi, Marco, Schachner, Andreas, Schaffran, Joern, Schmieden, Kristof, Schott, Matthias, Serra, Javi, Sokolov, Anton, Spagnolo, Paolo, Springmann, Konstantin, Staelens, Michael, Stelzl, Stefan, Straniero, Oscar, Taoso, Marco, Todarello, Elisa, Toni, Claudio, Ubaldi, Lorenzo, Urban, Federico, Vicente, Rodrigo, Visinelli, Luca, Vitagliano, Edoardo, Vogel, Julia K., Weiler, Andreas, Witte, Samuel J., Wurm, Michael, Yin, Wen, Zioutas, Konstantin
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.03433
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Table of Contents:
  • Axions and other very weakly interacting slim particles (WISPs), with masses below 1 GeV, arise naturally in many extensions of the Standard Model of particle physics. In particular, they could offer a new framework to explain the nature of dark matter and may help address a range of puzzling observations in astrophysics and particle physics. This review provides an overview of ongoing WISP searches and outlines the prospects for the next decade, spanning their theoretical motivation, indirect signatures in astrophysical observations, and dedicated laboratory experiments. It is based on the work carried on by the EU-funded COST Action ``Cosmic WISPers in the Dark Universe: Theory, astrophysics, and experiments'' (CA21106, https://www.cost.eu/actions/CA21106). This network plays a key role in coordinating and supporting WISP searches across Europe, while also contributing to the development of a roadmap aimed at securing European leadership in this research area. It is emphasized that Europe is currently pursuing a rich, diverse, and cost-effective experimental program, with the potential to deliver one or more transformative discoveries.