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Measurement of angular and CP asymmetries in D0→π+π-[mu]+[mu]- and D0→K+K-[mu]+[mu]- decays

The first measurements of the forward-backward asymmetry of the dimuon pair (AFB), the triple-product asymmetry (A2ϕ), and the charge-parity-conjugation asymmetry (ACP), in D0→π+π−μ+μ− and D0→K+K−μ+μ− decays are reported. They are performed using data from proton-proton collisions collected with the...

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Autori principali: Aaij, Roel (Autore) , Adeva, B. (Autore) , Adinolfi, M. (Autore) , D'Argent, Philippe (Autore) , Bachmann, Sebastian (Autore) , Berninghoff, Daniel (Autore) , Braun, Svende (Autore) , De Cian, Michel (Autore) , Comerma-Montells, Albert (Autore) , Dordei, Francesca (Autore) , Dziewiecki, Michal (Autore) , Gerick, David (Autore) , Grabowski, Jascha (Autore) , Han, Xiaoxue (Autore) , Hansmann-Menzemer, Stephanie (Autore) , Kecke, Matthieu (Autore) , Khanji, Basem (Autore) , Kolpin, Michael (Autore) , Kopecná, Renata (Autore) , Leverington, Blake (Autore) , Marks, Jörg (Autore) , Mitzel, Dominik (Autore) , Neubert, Sebastian (Autore) , Neuner, Max (Autore) , Piucci, Alessio (Autore) , Stahl, Marian (Autore) , Stemmle, Simon (Autore) , Tilburg, Jeroen van (Autore) , Uwer, Ulrich (Autore) , Zhelezov, Alexey (Autore) , Grünberg, Oliver (Autore) , Heß, Miriam (Autore) , Meinert, Nis (Autore) , Viemann, Harald (Autore) , Waldi, Roland (Autore)
Ente Autore: LHCb Collaboration (Autore)
Natura: Article (Journal)
Lingua:inglese
Pubblicazione: 30 August 2018
In: Physical review letters
Year: 2018, Volume: 121, Fascicolo: 9
ISSN:1079-7114
DOI:10.1103/PhysRevLett.121.091801
Accesso online:Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.121.091801
Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.121.091801
Testo
Note sull'autore:R. Aaij et al.* (LHCb Collaboration)
Descrizione
Riassunto:The first measurements of the forward-backward asymmetry of the dimuon pair (AFB), the triple-product asymmetry (A2ϕ), and the charge-parity-conjugation asymmetry (ACP), in D0→π+π−μ+μ− and D0→K+K−μ+μ− decays are reported. They are performed using data from proton-proton collisions collected with the LHCb experiment from 2011 to 2016, corresponding to a total integrated luminosity of 5 fb−1. The asymmetries are measured to be AFB(D0→π+π−μ+μ−)=(3.3±3.7±0.6)%, A2ϕ(D0→π+π−μ+μ−)=(−0.6±3.7±0.6)%, ACP(D0→π+π−μ+μ−)=(4.9±3.8±0.7)%, AFB(D0→K+K−μ+μ−)=(0±11±2)%, A2ϕ(D0→K+K−μ+μ−)=(9±11±1)%, ACP(D0→K+K−μ+μ−)=(0±11±2)%, where the first uncertainty is statistical and the second systematic. The asymmetries are also measured as a function of the dimuon invariant mass. The results are consistent with the standard model predictions.
Descrizione del documento:R. Aaij, P. d'Argent, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, M. De Cian, F. Dordei, M. Dziewiecki, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, M. Kolpin, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, A. Piucci, M. Stahl, S. Stemmle, J. van Tilburg, U. Uwer, A. Zhelezov [und weitere] (LHCb Collaboration)
Im Titel sind "+" , "-" und "0" hochgestellt
Im Titel ist "mu" als griechischer Buchstaben dargestellt
Gesehen am 28.05.2019
Descrizione fisica:Online Resource
ISSN:1079-7114
DOI:10.1103/PhysRevLett.121.091801

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