Copertina

Evidence for the decay X(3872) → [psi](2S)[gamma]

Evidence for the decay mode X(3872)→ψ(2S)γ in B+→X(3872)K+ decays is found with a significance of 4.4 standard deviations. The analysis is based on a data sample of proton-proton collisions, corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb detector, at centre-of-mass ener...

Descrizione completa

Salvato in:
Dettagli Bibliografici
Autori principali: Aaij, Roel (Autore) , Bachmann, Sebastian (Autore) , Bien, Alexander (Autore) , Comerma-Montells, Albert (Autore) , De Cian, Michel (Autore) , Dordei, Francesca (Autore) , Esen, Sevda (Autore) , Färber, Christian (Autore) , Gersabeck, Evelina (Autore) , Grillo, Lucia (Autore) , Han, Xiaoxue (Autore) , Hansmann-Menzemer, Stephanie (Autore) , Jäger, Andreas (Autore) , Kolpin, Michael (Autore) , Kreplin, Katharina (Autore) , Krocker, Georg Alexander (Autore) , Leverington, Blake (Autore) , Marks, Jörg (Autore) , Meißner, Marco (Autore) , Neuner, Max (Autore) , Nikodem, Thomas (Autore) , Seyfert, Paul (Autore) , Stahl, Sascha (Autore) , Uwer, Ulrich (Autore) , Vesterinen, Mika (Autore) , Wandernoth, Sebastian (Autore) , Wiedner, Dirk (Autore) , Zhelezov, Alexey (Autore)
Ente Autore: LHCb Collaboration (Autore)
Natura: Article (Journal)
Lingua:inglese
Pubblicazione: 16 June 2014
In: Nuclear physics. B, Particle physics
Year: 2014, Volume: 886, Pages: 665-680
ISSN:1873-1562
DOI:10.1016/j.nuclphysb.2014.06.011
Accesso online:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.nuclphysb.2014.06.011
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0550321314001941
Testo
Note sull'autore:LHCb Collaboration
Descrizione
Riassunto:Evidence for the decay mode X(3872)→ψ(2S)γ in B+→X(3872)K+ decays is found with a significance of 4.4 standard deviations. The analysis is based on a data sample of proton-proton collisions, corresponding to an integrated luminosity of 3 fb−1, collected with the LHCb detector, at centre-of-mass energies of 7 and 8 TeV. The ratio of the branching fraction of the X(3872)→ψ(2S)γ decay to that of the X(3872)→J/ψγ decay is measured to beB(X(3872)→ψ(2S)γ)B(X(3872)→J/ψγ)=2.46±0.64±0.29, where the first uncertainty is statistical and the second is systematic. The measured value does not support a pure DD¯⁎ molecular interpretation of the X(3872) state.
Descrizione del documento:LHCb Collaboration: R. Aaij, S. Bachmann, A. Bien, A. Comerma-Montells, M. De Cian, F. Dordei, S. Esen, C. Färber, E. Gersabeck, L. Grillo, X. Han, S. Hansmann-Menzemer, A. Jäger, M. Kolpin, K. Kreplin, G.A. Krocker, B. Leverington, J. Marks, M. Meißner, M. Neuner, T. Nikodem, P. Seyfert, S. Stahl, U. Uwer, M. Vesterinen, S. Wandernoth, D. Wiedner, A. Zhelezov und 667 weitere
Im Titel sind psi und gamma als griechische Buchstaben dargestellt
Gesehen am 16.09.2020
Descrizione fisica:Online Resource
ISSN:1873-1562
DOI:10.1016/j.nuclphysb.2014.06.011

Documenti analoghi