Tests of Light-Lepton Universality in Angular Asymmetries of B^{0}→D^{*-}ℓν Decays

Adachi, I; Adamczyk, K; Aggarwal, L; Aihara, H; Akopov, N; Aloisio, A; Anh Ky, N; Asner, D M; Atmacan, H; Aushev, T; Aushev, V; Aversano, M; Babu, V; Bae, H; Bahinipati, S; Bambade, P; Banerjee, Sw; Barrett, M; Baudot, J; Bauer, M; Baur, A; Beaubien, A; Becherer, F; Becker, J; Behera, P K; Bennett, J V; Bernlochner, F U; Bertacchi, V; Bertemes, M; Bertholet, E; Bessner, M; Bettarini, S; Bhuyan, B; Bianchi, F; Bilka, T; Biswas, D; Bobrov, A; Bodrov, D; Bolz, A; Bondar, A; Borah, J; Bozek, A; Bračko, M; Branchini, P; Briere, R A; Browder, T E; Budano, A; Bussino, S; Campajola, M; Cao, L; Casarosa, G; Cecchi, C; Cerasoli, J; Chang, M-C; Chang, P; Cheaib, R; Cheema, P; Chekelian, V; Cheon, B G; Chilikin, K; Chirapatpimol, K; Cho, H-E; Cho, K; Choi, S-K; Choudhury, S; Cochran, J; Corona, L; Cremaldi, L M; Das, S; Dattola, F; De La Cruz-Burelo, E; De La Motte, S A; De Nardo, G; De Nuccio, M; De Pietro, G; de Sangro, R; Destefanis, M; Dey, S; Dhamija, R; Di Canto, A; Di Capua, F; Dingfelder, J; Doležal, Z; Domínguez Jiménez, I; Dong, T V; Dorigo, M; Dort, K; Dossett, D; Dreyer, S; Dubey, S; Dujany, G; Ecker, P; Eliachevitch, M; Epifanov, D; Feichtinger, P; Ferber, T; Ferlewicz, D; Fillinger, T; Finck, C; Finocchiaro, G; Fodor, A; Forti, F; Frey, A; Fulsom, B G; Gabrielli, A; Ganiev, E; Garcia-Hernandez, M; Garg, R; Garmash, A; Gaudino, G; Gaur, V; Gaz, A; Gellrich, A; Ghevondyan, G; Ghosh, D; Ghumaryan, H; Giakoustidis, G; Giordano, R; Giri, A; Gobbo, B; Godang, R; Gogota, O; Goldenzweig, P; Gradl, W; Granderath, S; Graziani, E; Greenwald, D; Gruberová, Z; Gu, T; Guan, Y; Gudkova, K; Halder, S; Han, Y; Hara, T; Hayasaka, K; Hayashii, H; Hazra, S; Hearty, C; Hedges, M T; Heidelbach, A; Heredia de la Cruz, I; Hernández Villanueva, M; Hershenhorn, A; Higuchi, T; Hill, E C; Hoek, M; Hohmann, M; Horak, P; Hsu, C-L; Iijima, T; Inami, K; Inguglia, G; Ipsita, N; Ishikawa, A; Ito, S; Itoh, R; Iwasaki, M; Jackson, P; Jacobs, W W; Jang, E-J; Q P, Ji; Jia, S; Jin, Y; Johnson, A; Junkerkalefeld, H; Kaliyar, A B; Kandra, J; Kang, K H; Karyan, G; Kawasaki, T; Keil, F; Ketter, C; Kiesling, C; Kim, C-H; Kim, D Y; Kim, K-H; Kim, Y-K; Kindo, H; Kinoshita, K; Kodyš, P; Koga, T; Kohani, S; Kojima, K; Konno, T; Korobov, A; Korpar, S; Kovalenko, E; Kowalewski, R; Kraetzschmar, T M G; Križan, P; Krokovny, P; Kuhr, T; Kumar, J; Kumar, M; Kumara, K; Kunigo, T; Kuzmin, A; Kwon, Y-J; Lacaprara, S; Lai, Y-T; Lam, T; Lanceri, L; Lange, J S; Laurenza, M; Leboucher, R; Le Diberder, F R; Leitl, P; Levit, D; Lewis, P M; Li, C; L K, Li; Li, Y; Libby, J; Liu, Q Y; Liu, Z Q; Liventsev, D; Longo, S; Lueck, T; Luo, T; Lyu, C; Ma, Y; Maggiora, M; Maharana, S P; Maiti, R; Maity, S; Mancinelli, G; Manfredi, R; Manoni, E; Manthei, A C; Mantovano, M; Marcantonio, D; Marcello, S; Marinas, C; Martel, L; Martellini, C; Martini, A; Martinov, T; Massaccesi, L; Masuda, M; Matsuda, T; Matvienko, D; Maurya, S K; Mckenna, J A; Mehta, R; Meier, F; Merola, M; Metzner, F; Milesi, M; Miller, C; Mirra, M; Miyabayashi, K; Mohanty, G B; Molina-Gonzalez, N; Mondal, S; Moneta, S; Moser, H-G; Mrvar, M; Mussa, R; Nakamura, I; Nakazawa, Y; Narimani Charan, A; Naruki, M; Natkaniec, Z; Natochii, A; Nayak, L; Nazaryan, G; Nisar, N K; Nishida, S; Ogawa, S; Ono, H; Oskin, P; Otani, F; Pakhlov, P; Pakhlova, G; Paladino, A; Panta, A; Paoloni, E; Pardi, S; Parham, K; Park, S-H; Paschen, B; Passeri, A; Patra, S; Paul, S; Pedlar, T K; Peruzzi, I; Peschke, R; Pestotnik, R; Pham, F; Piccolo, M; Piilonen, L E; Podesta-Lerma, P L M; Podobnik, T; Pokharel, S; Praz, C; Prell, S; Prencipe, E; Prim, M T; Purwar, H; Rad, N; Rados, P; Raeuber, G; Raiz, S; Reif, M; Reiter, S; Remnev, M; Ripp-Baudot, I; Rizzo, G; Robertson, S H; Roehrken, M; Roney, J M; Rostomyan, A; Rout, N; Russo, G; Sahoo, D; Sandilya, S; Sangal, A; Santelj, L; Sato, Y; Savinov, V; Scavino, B; Schmitt, C; Schnepf, M; Schwanda, C; Seino, Y; Selce, A; Senyo, K; Serrano, J; Sevior, M E; Sfienti, C; Shan, W; Sharma, C; Shen, C P; Shi, X D; Shillington, T; Shiu, J-G; Shtol, D; Shwartz, B; Sibidanov, A; Simon, F; Singh, J B; Skorupa, J; Sobie, R J; Sobotzik, M; Soffer, A; Sokolov, A; Solovieva, E; Spataro, S; Spruck, B; Starič, M; Stavroulakis, P; Stefkova, S; Stottler, Z S; Stroili, R; Strube, J; Sumihama, M; Sumisawa, K; Sutcliffe, W; Svidras, H; Takahashi, M; Takizawa, M; Tamponi, U; Tanida, K; Tenchini, F; Thaller, A; Tittel, O; Tiwary, R; Tonelli, D; Torassa, E; Toutounji, N; Trabelsi, K; Tsaklidis, I; Uchida, M; Ueda, I; Uematsu, Y; Uglov, T; Unger, K; Unno, Y; Uno, K; Uno, S; Urquijo, P; Ushiroda, Y; Vahsen, S E; van Tonder, R; Varner, G S; Varvell, K E; Veronesi, M; Vismaya, V S; Vitale, L; Vobbilisetti, V; Volpe, R; Wach, B; Waheed, E; Wakai, M; Wallner, S; Wang, E; Wang, M-Z; Wang, Z; Warburton, A; Watanabe, M; Watanuki, S; Welsch, M; Wessel, C; X P, Xu; Yabsley, B D; Yamada, S; Yan, W; Yang, S B; Yin, J H; Yoshihara, K; Yuan, C Z; Zani, L; Zhang, Y; Zhilich, V; Zhou, J S; Zhou, Q D; Zhukova, V I; Žlebčík, R

doi:10.1103/PhysRevLett.131.181801

We present the first comprehensive tests of the universality of the light leptons in the angular distributions of semileptonic B0-meson decays to charged spin-1 charmed mesons. We measure five angular-asymmetry observables as functions of the decay recoil that are sensitive to lepton-universality-violating contributions. We use events where one neutral B is fully reconstructed in ϒ(4S)→BB decays in data corresponding to 189 fb-1 integrated luminosity from electron-positron collisions collected with the Belle II detector. We find no significant deviation from the standard model expectations.