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Measurement of CP Violation in B0→KS0π0 Decays at Belle II

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  • Additional Information
    • Contributors:
      Adachi, I.; Adamczyk, K.; Aggarwal, L.; Ahmed, H.; 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.; Becker, J.; Behera, P. K.; Bennett, J. V.; Bertacchi, V.; Bertemes, M.; Bertholet, E.; Bessner, M.; Bettarini, S.; Bhuyan, B.; Bianchi, F.; Bilka, T.; Biswas, D.; Bodrov, D.; 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, P.; Cheaib, R.; Cheema, P.; Chekelian, V.; Chen, C.; Cheon, B. G.; Chilikin, K.; Chirapatpimol, K.; Cho, H. -E.; Cho, K.; Cho, S. -J.; 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 Marino, G.; De Nuccio, M.; De Pietro, G.; de Sangro, R.; Destefanis, M.; De Yta-Hernandez, A.; Dhamija, R.; Di Canto, A.; Di Capua, F.; Dingfelder, J.; Doležal, Z.; Domínguez Jiménez, I.; Dong, T. V.; Dorigo, M.; Dort, K.; Dreyer, S.; Dubey, S.; Dujany, G.; Ecker, P.; Eliachevitch, M.; Feichtinger, P.; Ferber, T.; Ferlewicz, D.; Fillinger, T.; Finck, C.; Finocchiaro, G.; Fodor, A.; Forti, F.; Fulsom, B. G.; Gabrielli, A.
    • Publication Date:
      2023
    • Collection:
      Università degli studi di Trieste: ArTS (Archivio della ricerca di Trieste)
    • Abstract:
      We report a measurement of the CP-violating parameters C and S in B^{0}→K_{S}^{0}π^{0} decays at Belle II using a sample of 387×10^{6} BB[over ̄] events recorded in e^{+}e^{-} collisions at a center-of-mass energy corresponding to the Υ(4S) resonance. These parameters are determined by fitting the proper decay-time distribution of a sample of 415 signal events. We obtain C=-0.04_{-0.15}^{+0.14}±0.05 and S=0.75_{-0.23}^{+0.20}±0.04, where the first uncertainties are statistical and the second are systematic.
    • Relation:
      info:eu-repo/semantics/altIdentifier/pmid/37774261; volume:131/2023; issue:11; firstpage:"-"; lastpage:"-"; numberofpages:8; journal:PHYSICAL REVIEW LETTERS; https://hdl.handle.net/11368/3068359; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85172830502; https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.131.111803
    • Accession Number:
      10.1103/PhysRevLett.131.111803
    • Online Access:
      https://doi.org/10.1103/PhysRevLett.131.111803
      https://hdl.handle.net/11368/3068359
    • Rights:
      info:eu-repo/semantics/openAccess
    • Accession Number:
      edsbas.33417F7D