EuCAPT White Paper: Opportunities and Challenges for Theoretical Astroparticle Physics in the Next Decade
Rafael Alves Batista, Mustafa A. Amin, Gabriela Barenboim, Nicola Bartolo, Daniel Baumann, Andreas Bauswein, Emilio Bellini, David Benisty, Gianfranco Bertone, Pasquale Blasi, Christian G. Böhmer, Ž. Bošnjak, Torsten Bringmann, Clare Burrage, Mauricio Bustamante, J. Calderón Bustillo, Christian T. Byrnes, Francesca Calore, Riccardo Catena, D. G. Cerdeño, Silvio Sergio Cerri, Marco Chianese, Katy Clough, Alex Cole, Pilar Coloma, Adam Coogan, Laura Covi, Daniel Cutting, Anne-Christine Davis, Claudia de Rham, Armando di Matteo, Guillem Domènech, Marco Drewes, Tim Dietrich, T. Edwards, Ivan Esteban, Recai Erdem, Carmelo Evoli, Matteo Fasiello, S. Feeney, Ricardo Z. Ferreira, Anastasia Fialkov, N. Fornengo, S. Gabici, T. Galatyuk, Daniele Gaggero, Dario Grasso, Claire Guépin, Julia Harz, Mario Herrero-Valea, Tanja Hinderer, Natalie B Hogg, Deanna C. Hooper, D. Iocco, J. Isern, Konstantin Karchev, Bradley J. Kavanagh, Michael Korsmeier, Kumiko Kotera, K. Koyama, B. Krishnan, Julien Lesgourgues, Jackson Levi Said, Lucas Lombriser, Christiane S. Lorenz, Silvia Manconi, Michela Mapelli, Alexandre Marcowith, Sera Markoff, David J. E. Marsh, M. Martinelli, C.J.A.P. Martinsolami, Matthews, J. H., Meli, A., Mena, O., Mifsud, J., Bertolami, M. M. Miller, Peter Millington, Philipp Moesta, Kathrin Nippel, Viviana Niro, Evan O’Connor, Foteini Oikonomou, Paganini, C. F., G. Pagliaroli, Paolo Pani, Christoph Pfrommer, Silvia Pascoli, Lucas Pinol, Lorenzo Pizzuti, Porto, R. A., Adam Pound, Fernando Quevedo, Raffelt, G. G., Alvise Raccanelli, E. Ramírez-Ruiz, Marco Raveri, S. Renaux-Petel, Angelo Ricciardone, Ali Rida Khalifeh
Abstract
Astroparticle physics is undergoing a profound transformation, due to a series of extraordinary new results, such as the discovery of high-energy cosmic neutrinos with IceCube, the direct detection of gravitational waves with LIGO and Virgo, and many others. This white paper is the result of a collaborative effort that involved hundreds of theoretical astroparticle physicists and cosmologists, under the coordination of the European Consortium for Astroparticle Theory (EuCAPT). Addressed to the whole astroparticle physics community, it explores upcoming theoretical opportunities and challenges for our field of research, with particular emphasis on the possible synergies among different subfields, and the prospects for solving the most fundamental open questions with multi-messenger observations.