New physics searches at kaon and hyperon factories

• Published in: Reports on progress in physics Vol. 86; no. 1
• Main Authors: Goudzovski, Evgueni, Redigolo, Diego, Tobioka, Kohsaku, Zupan, Jure, Alonso-Álvarez, Gonzalo, Alves, Daniele M., Bansal, Saurabh, Bauer, Martin, Brod, Joachim, Chobanova, Veronika, D’Ambrosio, Giancarlo, Datta, Alakabha, Dery, Avital, Dettori, Francesco, Dobrescu, Bogdan A., Döbrich, Babette, Egana-Ugrinovic, Daniel, Elor, Gilly, Escudero, Miguel, Fabbrichesi, Marco, Fornal, Bartosz, Fox, Patrick J., Gabrielli, Emidio, Geng, Li-Sheng, Gligorov, Vladimir V., Gorbahn, Martin, Gori, Stefania, Grinstein, Benjamín, Grossman, Yuval, Guadagnoli, Diego, Homiller, Samuel, Hostert, Matheus, Kelly, Kevin J., Kitahara, Teppei, Knapen, Simon, Krnjaic, Gordan, Kupsc, Andrzej, Kvedaraitė, Sandra, Lanfranchi, Gaia, Marfatia, Danny, Camalich, Jorge Martin, Santos, Diego Martínez, Massri, Karim, Meade, Patrick, Moulson, Matthew, Nanjo, Hajime, Neubert, Matthias, Pospelov, Maxim, Renner, Sophie, Schacht, Stefan, Schnubel, Marvin, Shi, Rui-Xiang, Shuve, Brian, Spadaro, Tommaso, Soreq, Yotam, Stamou, Emmanuel, Sumensari, Olcyr, Tammaro, Michele, Terol-Calvo, Jorge, Thamm, Andrea, Tung, Yu-Chen, Wang, Dayong, Yamamoto, Kei, Ziegler, Robert
• Format: Journal Article
• Language: English
• Published: United States IOP Publishing 06.01.2023
• Subjects: beyond the standard model; hyperon; kaon; KOTO experiment; LHCb experiment; NA62 experiment; new light particles; PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
• ISSN: 0034-4885; 1361-6633

Rare meson decays are among the most sensitive probes of both heavy and light new physics. Among them, new physics searches using kaons benefit from their small total decay widths and the availability of very large datasets. On the other hand, useful complementary information is provided by hyperon decay measurements. Here, we summarize the relevant phenomenological models and the status of the searches in a comprehensive list of kaon and hyperon decay channels. We identify new search strategies for under-explored signatures, and demonstrate that the improved sensitivities from current and next-generation experiments could lead to a qualitative leap in the exploration of light dark sectors.