Copertina

Measurement of the time-integrated CP asymmetry in D0→K0SK0S decays

Mostra altre versioni (1)

A measurement of the time-integrated CP asymmetry in D0 → K S 0 K S 0 decays is reported. The data correspond to an integrated luminosity of about 2 fb−1 collected in 2015-2016 by the LHCb collaboration in pp collisions at a centre-of-mass energy of 13 TeV. The D0 candidate is required to originate...

Descrizione completa

Salvato in:
Dettagli Bibliografici
Autori principali: Aaij, Roel (Autore) , D'Argent, Philippe (Autore) , Bachmann, Sebastian (Autore) , Braun, Svende (Autore) , De Cian, Michel (Autore) , Comerma-Montells, Albert (Autore) , Esen, Sevda (Autore) , Gerick, David (Autore) , Han, Xiaoxue (Autore) , Hansmann-Menzemer, Stephanie (Autore) , Kecke, Matthieu (Autore) , Khanji, Basem (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) , Dziewiecki, Michal (Autore) , Grabowski, Jascha (Autore) , Kopecná, Renata (Autore) , Skidmore, Nicola (Autore) , Berninghoff, Daniel (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: November 8, 2018
In: Journal of high energy physics
Year: 2018, Fascicolo: 11
ISSN:1029-8479
DOI:10.1007/JHEP11(2018)048
Accesso online:Verlag, Volltext: https://doi.org/10.1007/JHEP11(2018)048
Testo
Note sull'autore:the LHCb collaboration
Descrizione
Riassunto:A measurement of the time-integrated CP asymmetry in D0 → K S 0 K S 0 decays is reported. The data correspond to an integrated luminosity of about 2 fb−1 collected in 2015-2016 by the LHCb collaboration in pp collisions at a centre-of-mass energy of 13 TeV. The D0 candidate is required to originate from a D*+ → D0π+ decay, allowing the determination of the flavour of the D0 meson using the pion charge. The D0 → K+K− decay, which has a well measured CP asymmetry, is used as a calibration channel. The CP asymmetryfor D0 → K S 0 K S 0 is measured to be ACP(D0→K0SK0S)=(4.3±3.4±1.0)%,ACP(D0→KS0KS0)=(4.3±3.4±1.0)%, {\mathcal{A}}^{CP}\left({D}^0\to {K}_S^0{K}_S^0\right)=\left(4.3\pm 3.4\pm 1.0\right)\%, where the first uncertainty is statistical and the second is systematic. This result is combined with the previous LHCb measurement at lower centre-of-mass energies to obtain ACP(D0→K0SK0S)=(2.3±2.8±0.9)%.ACP(D0→KS0KS0)=(2.3±2.8±0.9)%. {\mathcal{A}}^{CP}\left({D}^0\to {K}_S^0{K}_S^0\right)=\left(2.3\pm 2.8\pm 0.9\right)\%. Open image in new window
Descrizione del documento:Im Titel sind "0" und "S" untereinander geschrieben: "0" hochgestellt, "S" tiefgestellt
Im Titel wird "0" hochgestellt
The LHCb collaboration: R. Aaij, P. d'Argent, S. Bachmann, D. Berninghoff, S. Braun, A. Comerma-Montells, M. De Cian, M. Dziewiecki, S. Esen, D. Gerick, J.P. Grabowski, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, R. Kopecna, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, A. Piucci, N. Skidmore, M. Stahl, S. Stemmle, J. van Tilburg, U. Uwer, A. Zhelezov, O. Grünberg, M. Heß, N. Meinert, H. Viemann, R. Waldi [und weitere]
Gesehen am 28.05.2019
Descrizione fisica:Online Resource
ISSN:1029-8479
DOI:10.1007/JHEP11(2018)048

Documenti analoghi