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Observation of the B0→D*0K+π− and B0s→D*0K−π+ decays A. S. W. Abdelmotteleb (24908344) F. J. Abudinen Gallego (24908347) J. J. Back (24765253) A. Beck (2845379) T. Blake (16438904) A. Brossa Gonzalo (24909043) M. F. Cicala (24908353) C. M. Costa Sobral (24909046) L. M. Garcia Martin (24892381) T. J. Gershon (19002605) R. D. L. Henderson (24976843) R. J. Hunter (24908356) T. P. Jones (24908359) M. Kenzie (24892570) M. Kreps (19003883) T. E. Latham (19002767) O. Lupton (24920245) E. Millard (24889600) A. G. Morris (24771091) B. Pagare (24908362) M. Ramos Pernas (24892954) M. Vesterinen (24893287) J. A. Ward (7594904) A. R. Wiederhold (24908368) M. Xu (2251924) B mesons -- Decay Particles (Nuclear physics) Quantum flavor dynamics Quarks Matrix mechanics Unitary operators Migrated from ePrints The first observations of B 0 → ¯ D ∗ ( 2007 ) 0 K + π − and B 0 s → ¯ D ∗ ( 2007 ) 0 K − π + decays are presented, and their branching fractions relative to that of the B 0 → ¯ D ∗ ( 2007 ) 0 π + π − decay are reported. These modes can potentially be used to investigate the spectroscopy of charm and charm-strange resonances and to determine the angle γ of the Cabibbo-Kobayashi-Maskawa unitarity triangle. It is also important to understand them as a source of potential background in determinations of γ from B + → D K + and B 0 → D K + π − decays. The analysis is based on a sample corresponding to an integrated luminosity of 5.4     fb − 1 of proton-proton collision data at 13 TeV center-of-mass energy recorded with the LHCb detector. The ¯ D ∗ ( 2007 ) 0 mesons are fully reconstructed in the ¯ D 0 π 0 and ¯ D 0 γ channels with the ¯ D 0 → K + π − decay. A novel weighting method is used to subtract background while simultaneously applying an event-by-event efficiency correction to account for resonant structures in the decays. 2022-04-20T00:00:00Z Text Journal contribution 10.1103/PhysRevD.105.072005 https://figshare.com/articles/journal_contribution/Observation_of_the_B0_D_0K_and_B0s_D_0K_decays/34047120 CC BY 4.0