A search for the decay Bs0→D*-+ π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as Bs0→π+π - and Bs0→DD̄. Systematic uncertainties are minimized by using B0→D*-+π± as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(Bs0→D*-+ π±)<6.1(7.8)×10 -6 at 90% (95%) confidence level. © 2013 CERN.
Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2013). Search for the decay Bs0→D*-+π±. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 87(7) [10.1103/PhysRevD.87.071101].
Search for the decay Bs0→D*-+π±
Aaij, R; Abellan Beteta, C; Adeva, B; Adinolfi, M; Adrover, C; Affolder, A; Ajaltouni, Z; Albrecht, J; Alessio, F; Alexander, M; Ali, S; Alkhazov, G; Alvarez Cartelle, P; Alves, A; Amato, S; Amerio, S; Amhis, Y; Anderlini, L; Anderson, J; Andreassen, R; Appleby, R; Aquines Gutierrez, O; Archilli, F; Artamonov, A; Artuso, M; Aslanides, E; Auriemma, G; Bachmann, S; Back, J; Baesso, C; Balagura, V; Baldini, W; Barlow, R; Barschel, C; Barsuk, S; Barter, W; Bauer, T; Bay, A; Beddow, J; Bedeschi, F; Bediaga, I; Belogurov, S; Belous, K; Belyaev, I; Ben Haim, E; Benayoun, M; Bencivenni, G; Benson, S; Benton, J; Berezhnoy, A; Bernet, R; Bettler, M; Van Beuzekom, M; Bien, A; Bifani, S; Bird, T; Bizzeti, A; Bjørnstad, P; Blake, T; Blanc, F; Blouw, J; Blusk, S; Bocci, V; Bondar, A; Bondar, N; Bonivento, W; Borghi, S; Borgia, A; Bowcock, T; Bowen, E; Bozzi, C; Brambach, T; Van Den Brand, J; Bressieux, J; Brett, D; Britsch, M; Britton, T; Brook, N; Brown, H; Burducea, I; Bursche, A; Busetto, G; Buytaert, J; 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2013
Abstract
A search for the decay Bs0→D*-+ π± is presented using a data sample corresponding to an integrated luminosity of 1.0 fb-1 of pp collisions collected by LHCb. This decay is expected to be mediated by a W-exchange diagram, with little contribution from rescattering processes, and therefore a measurement of the branching fraction will help us to understand the mechanism behind related decays such as Bs0→π+π - and Bs0→DD̄. Systematic uncertainties are minimized by using B0→D*-+π± as a normalization channel. We find no evidence for a signal, and set an upper limit on the branching fraction of B(Bs0→D*-+ π±)<6.1(7.8)×10 -6 at 90% (95%) confidence level. © 2013 CERN.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/75131
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