A model-independent measurement of the CKM angle $γ$ in partially reconstructed $B^{\pm} \to D^{*} h^{\pm}$ decays with $D \to K_{S}^{0} h^{+}h^{-}$ $(h=π, K)$ ...
arXiv, 2023
academicJournal
Zugriff:
A measurement of $C\!P$-violating observables in $B^{\pm} \to D^{*} K^{\pm}$ and $B^{\pm} \to D^{*} π^{\pm}$ decays is made where the photon or neutral pion from the $D^{*} \to Dγ$ or $D^{*} \to Dπ^{0}$ decay is not reconstructed. The $D$ meson is reconstructed in the self-conjugate decay modes, $D \to K_{S}^{0} π^{+} π^{-}$ or $D \to K_{S}^{0} K^{+} K^{-}$. The distribution of signal yields in the $D$ decay phase space is analysed in a model-independent way. The measurement uses a data sample collected in proton-proton collisions at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to a total integrated luminosity of approximately 9 fb$^{-1}$. The $B^{\pm} \to D^{*} K^{\pm}$ and $B^{\pm} \to D^{*} π^{\pm}$ $C\!P$-violating observables are interpreted in terms of hadronic parameters and the CKM angle $γ$, resulting in a measurement of $γ= (92^{+21}_{-17})^{\circ}$. The total uncertainty includes the statistical and systematic uncertainties, and the uncertainty due to external strong-phase inputs. ... : All figures and tables, along with machine-readable versions and any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-029.html (LHCb public pages) ...
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A model-independent measurement of the CKM angle $γ$ in partially reconstructed $B^{\pm} \to D^{*} h^{\pm}$ decays with $D \to K_{S}^{0} h^{+}h^{-}$ $(h=π, K)$ ...
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Autor/in / Beteiligte Person: | Collaboration, LHCb ; Aaij, R. ; Abdelmotteleb, A. S. W. ; Beteta, C. Abellan ; Abudinén, F. ; Ackernley, T. ; Adeva, B. ; Adinolfi, M. ; Adlarson, P. ; Agapopoulou, C. ; Aidala, C. A. ; Ajaltouni, Z. ; Akar, S. ; Akiba, K. ; Albicocco, P. ; Albrecht, J. ; Alessio, F. ; Alexander, M. ; Albero, A. Alfonso ; Aliouche, Z. ; Cartelle, P. Alvarez ; Amalric, R. ; Amato, S. ; Amey, J. L. ; Amhis, Y. ; An, L. ; Anderlini, L. ; Andersson, M. ; Andreianov, A. ; Andreola, P. ; Andreotti, M. ; Andreou, D. ; Anelli, A. ; Ao, D. ; Archilli, F. ; Argenton, M. ; Cuendis, S. Arguedas ; Artamonov, A. ; Artuso, M. ; Aslanides, E. ; Atzeni, M. ; Audurier, B. ; Bacher, D. ; Perea, I. Bachiller ; Bachmann, S. ; Bachmayer, M. ; Back, J. J. ; Bailly-reyre, A. ; Rodriguez, P. Baladron ; Balagura, V. |
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Veröffentlichung: | arXiv, 2023 |
Medientyp: | academicJournal |
DOI: | 10.48550/arxiv.2311.10434 |
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