Observation of the B0s → η′η′ decay

The first observation of the B0s→η′η′ decay is reported. The study is based on a sample of proton-proton collisions corresponding to 3.0 fb−1 of integrated luminosity collected with the LHCb detector. The significance of the signal is 6.4 standard deviations. The branching fraction is measured to be...

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Main Authors:	Aaij, Roel (Author) , Aquines Gutiérrez, Osvaldo (Author) , Bachmann, Sebastian (Author) , Bien, Alexander (Author) , Blouw, Johan (Author) , Britsch, Markward (Author) , Comerma-Montells, Albert (Author) , De Cian, Michel (Author) , Dordei, Francesca (Author) , Esen, Sevda (Author) , Färber, Christian (Author) , Fontana, Marianna (Author) , Gerick, David (Author) , Gersabeck, Evelina (Author) , Grillo, Lucia (Author) , Han, Xiaoxue (Author) , Hansmann-Menzemer, Stephanie (Author) , Jäger, Andreas (Author) , Kolpin, Michael (Author) , Kreplin, Katharina (Author) , Krocker, Georg Alexander (Author) , Leverington, Blake (Author) , Marks, Jörg (Author) , Meißner, Marco (Author) , Mitzel, Dominik (Author) , Neuner, Max (Author) , Nikodem, Thomas (Author) , Schmelling, Michael (Author) , Seyfert, Paul (Author) , Stahl, Marian (Author) , Uwer, Ulrich (Author) , Vesterinen, Mika (Author) , Waldi, Roland (Author) , Voß, Christian (Author) , Wandernoth, Sebastian (Author) , Wiedner, Dirk (Author) , Zhelezov, Alexey (Author)
Corporate Author:	LHCb Collaboration (Author)
Format:	Article (Journal)
Language:	English
Published:	28 July 2015
In:	Physical review letters Year: 2015, Volume: 115, Issue: 5, Pages: 1-9
ISSN:	1079-7114
DOI:	10.1103/PhysRevLett.115.051801
Online Access:	Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevLett.115.051801 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.115.051801
Author Notes:	R. Aaij et al.*(LHCb Collaboration)

MARC


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245	1	0	\|a Observation of the B0s → η′η′ decay \|c R. Aaij et al.*(LHCb Collaboration)
246	3	3	\|a Observation of the B 0 s → eta′ eta′ decay
264		1	\|c 28 July 2015
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500			\|a The LHCb Collaboration: R. Aaij, O. Aquines Gutierrez, P. d'Argent, B. Adeva, M. Adinolfi, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Faerber, M. Fontana, D. Gerick, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jaeger, K. Matthieu, M. Kolpin, K. Kreplin, G. Krocker, B. Leverington, J. Marks, M. Meissner, D. Mitzel, J. Neubert, M. Neuner, T. Nikodem, M. Schmelling, P. Seyfert, M. Stahl, U. Uwer, M. Vesterinen, C. Voß, R. Waldi, S. Wandernoth, D. Wiedner, A. Zhelezov [und 677 weitere]
500			\|a Im Titel ist "0" hochgestellt und "s" tiefgestellt, dabei steht "0" über "s"
500			\|a Gesehen am 11.05.2021
520			\|a The first observation of the B0s→η′η′ decay is reported. The study is based on a sample of proton-proton collisions corresponding to 3.0 fb−1 of integrated luminosity collected with the LHCb detector. The significance of the signal is 6.4 standard deviations. The branching fraction is measured to be [3.31±0.64(stat)±0.28(syst)±0.12(norm)]×10−5, where the third uncertainty comes from the B±→η′K± branching fraction that is used as a normalization. In addition, the charge asymmetries of B±→η′K± and B±→ϕK±, which are control channels, are measured to be (−0.2±1.3)% and (+1.7±1.3)%, respectively. All results are consistent with theoretical expectations.
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776	0	8	\|i Erscheint auch als \|n Druck-Ausgabe \|a LHCb Collaboration \|t Observation of the B0s → η′η′ decay \|d 2015 \|w (DE-627)833640798 \|w (DE-576)9833640796
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Aaij, O. Aquines Gutierrez, P. d'Argent, B. Adeva, M. Adinolfi, S. Bachmann, A. Bien, J. Blouw, M. Britsch, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Faerber, M. Fontana, D. Gerick, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jaeger, K. Matthieu, M. Kolpin, K. Kreplin, G. Krocker, B. Leverington, J. Marks, M. Meissner, D. Mitzel, J. Neubert, M. Neuner, T. Nikodem, M. Schmelling, P. Seyfert, M. Stahl, U. Uwer, M. Vesterinen, C. Voß, R. Waldi, S. Wandernoth, D. Wiedner, A. Zhelezov [und 677 weitere]","Im Titel ist \"0\" hochgestellt und \"s\" tiefgestellt, dabei steht \"0\" über \"s\"","Gesehen am 11.05.2021"],"id":{"eki":["1757947310"],"doi":["10.1103/PhysRevLett.115.051801"]},"recId":"1757947310"}
SRT			\|a LHCBCOLLABOBSERVATIO2820

Observation of the B0s → η′η′ decay

MARC

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