> Details
Aaij, Roel
[Author];
D'Argent, Philippe
[Author];
Bachmann, Sebastian
[Author];
Braun, Svende
[Author];
Comerma-Montells, Albert
[Author];
De Cian, Michel
[Author];
Esen, Sevda
[Author];
Gerick, David
[Author];
Gersabeck, Evelina
[Author];
Han, Xiaoxue
[Author];
Hansmann-Menzemer, Stephanie
[Author];
Kecke, Matthieu
[Author];
Khanji, Basem
[Author];
Krokovny, Pavel
[Author];
Leverington, Blake
[Author];
Marks, Jörg
[Author];
Mitzel, Dominik
[Author];
Neubert, Sebastian
[Author];
Neuner, Max
[Author];
Nikodem, Thomas
[Author];
Piucci, Alessio
[Author];
Schiller, Manuel
[Author];
Stahl, Marian
[Author];
Stemmle, Simon
[Author];
[...]
;
LHCb Collaboration
Search for CP violation in the phase space of D0→π+π−π+π− decays
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- Media type: E-Article
- Title: Search for CP violation in the phase space of D0→π+π−π+π− decays
- Contributor: Aaij, Roel [VerfasserIn]; D'Argent, Philippe [VerfasserIn]; Bachmann, Sebastian [VerfasserIn]; Braun, Svende [VerfasserIn]; Comerma-Montells, Albert [VerfasserIn]; De Cian, Michel [VerfasserIn]; Esen, Sevda [VerfasserIn]; Gerick, David [VerfasserIn]; Gersabeck, Evelina [VerfasserIn]; Han, Xiaoxue [VerfasserIn]; Hansmann-Menzemer, Stephanie [VerfasserIn]; Kecke, Matthieu [VerfasserIn]; Khanji, Basem [VerfasserIn]; Krokovny, Pavel [VerfasserIn]; Leverington, Blake [VerfasserIn]; Marks, Jörg [VerfasserIn]; Mitzel, Dominik [VerfasserIn]; Neubert, Sebastian [VerfasserIn]; Neuner, Max [VerfasserIn]; Nikodem, Thomas [VerfasserIn]; Piucci, Alessio [VerfasserIn]; Schiller, Manuel [VerfasserIn]; Stahl, Marian [VerfasserIn]; Stemmle, Simon [VerfasserIn]; Tilburg, Jeroen van [VerfasserIn]; Uwer, Ulrich [VerfasserIn]; Waldi, Roland [VerfasserIn]; Zhelezov, Alexey [VerfasserIn]
- imprint: 4 April 2017
- Published in: Physics letters / B ; 769(2017), Seite 345-356
- Language: English
- DOI: 10.1016/j.physletb.2017.03.062
- ISSN: 1873-2445
- Identifier:
- Origination:
-
Footnote:
Im Titel sind "0", "+" und "-" hochgestellt
Im Titel wird "pi" als griechischer Buchstabe dargestellt
LHCb collaboration: R. Aaij, P. d'Argent, S. Bachmann, S. Braun, A. Comerma-Montells, M. De Cian, S. Esen, D. Gerick, E. Gersabeck, X. Han, S. Hansmann-Menzemer, M. Kecke, B. Khanji, P. Krokovny, B. Leverington, J. Marks, D.S. Mitzel, S. Neubert, M. Neuner, T. Nikodem, A. Piucci, M. Schilller, M. Stahl, S. Stemmle, J. van Tilburg, U. Uwer, R. Waldi, A. Zhelezov [und weitere]
- Description: A search for time-integrated CP violation in the Cabibbo-suppressed decay D0→π+π−π+π− is performed using an unbinned, model-independent technique known as the energy test. This is the first application of the energy test in four-body decays. The search is performed for P-even CP asymmetries and, for the first time, is extended to probe the P-odd case. Using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb−1 collected by the LHCb detector at centre-of-mass energies of s=7 TeV and 8 TeV, the world's best sensitivity to CP violation in this decay is obtained. The data are found to be consistent with the hypothesis of CP symmetry with a p-value of (4.6±0.5)% in the P-even case, and marginally consistent with a p-value of (0.6±0.2)% in the P-odd case, corresponding to a significance for CP non-conservation of 2.7 standard deviations.
- Access State: Open Access