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Measurement of the CKM angle γ in B± → DK± and B± → Dπ± decays with D → K0Sh+h-

A measurement of CP-violating observables is performed using the decays B± → DK± and B± → Dπ±, where the D meson is reconstructed in one of the self-conjugate three-body final states K0Sπ+π− and K0SK+K− (commonly denoted K0Sh+h−). The decays are analysed in bins of the D-decay phase space, leading t...

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Autori principali: Aaij, Roel (Autore) , Archilli, Flavio (Autore) , Bachmann, Sebastian (Autore) , Berninghoff, Daniel (Autore) , Borsato, Martino (Autore) , Dziewiecki, Michal (Autore) , Frau, Giulia (Autore) , Gerick, David (Autore) , Grabowski, Jascha (Autore) , Günther, Paul André (Autore) , Han, Xiaoxue (Autore) , Hansmann-Menzemer, Stephanie (Autore) , Hu, Jiangqiao (Autore) , Kopecná, Renata (Autore) , Leverington, Blake (Autore) , Li, Peilian (Autore) , Malygina, Hanna (Autore) , Marks, Jörg (Autore) , Meinert, Nis (Autore) , Morris, A. B. (Autore) , Neubert, Sebastian (Autore) , Piucci, Alessio (Autore) , Sarpis, Mindaugas (Autore) , Schmelling, Michael (Autore) , Skidmore, Nicola (Autore) , Stemmle, Simon (Autore) , Unverzagt, Daniel Joachim (Autore) , Uwer, Ulrich (Autore) , Viemann, Harald (Autore) , Waldi, Roland (Autore) , Wang, Chishuai (Autore) , Witola, Lukas (Autore) , Zavertyaev, M. (Autore) , Zhelezov, Alexey (Autore)
Ente Autore: LHCb Collaboration (Autore)
Natura: Article (Journal)
Lingua:inglese
Pubblicazione: 19 February 2021
In: Journal of high energy physics
Year: 2021, Fascicolo: 2, Pages: 1-36
ISSN:1029-8479
DOI:10.1007/JHEP02(2021)169
Accesso online:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1007/JHEP02(2021)169
Testo
Note sull'autore:R. Aaij et al. (The LHCb collaboration)
Descrizione
Riassunto:A measurement of CP-violating observables is performed using the decays B± → DK± and B± → Dπ±, where the D meson is reconstructed in one of the self-conjugate three-body final states K0Sπ+π− and K0SK+K− (commonly denoted K0Sh+h−). The decays are analysed in bins of the D-decay phase space, leading to a measurement that is independent of the modelling of the D-decay amplitude. The observables are inter- preted in terms of the CKM angle γ. Using a data sample corresponding to an integrated luminosity of 9 fb−1 collected in proton-proton collisions at centre-of mass energies of 7, 8, and 13 TeV with the LHCb experiment, γ is measured to be (68.7+5.2−5.1)∘. The hadronic parameters rDKB, rDπB ,δDKB, and δDπB, which are the ratios and strong-phase differences of the suppressed and favoured B± decays, are also reported.
Descrizione del documento:Im Titel sind jeweils "±", "+", "-" und "0" hochgestellt, "S" ist tiefgestellt, dabei steht "0" über "S"
Gesehen am 15.03.2021
Descrizione fisica:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP02(2021)169

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