Header

UZH-Logo

Maintenance Infos

Search for the rare decays ${B}^{0}{\rightarrow}J/{\psi}{\gamma}$ and ${B}_{s}^{0}{\rightarrow}J/{\psi}{\gamma}$


LHCb collaboration; Abellán Beteta, C; Anderson, J; Bernet, R; Bowen, E; Bursche, A; Chiapolini, N; Chrzaszcz, M; Elsasser, C; Graverini, E; Lionetto, F; Mauri, A; Müller, K; Steinkamp, O; Serra, N; Silva Coutinho, R; Storaci, B; Straumann, U; Tresch, M; Vollhardt, A; Weiden, A; et al (2015). Search for the rare decays ${B}^{0}{\rightarrow}J/{\psi}{\gamma}$ and ${B}_{s}^{0}{\rightarrow}J/{\psi}{\gamma}$. Physical Review D (Particles, Fields, Gravitation and Cosmology), 92:112002.

Abstract

A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is performed, using data collected by the LHCb experiment in $pp$ collisions at $\sqrt{s}=7$ and $8$ TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. The observed number of signal candidates is consistent with a background-only hypothesis. Branching fraction values larger than $1.7\times 10^{-6}$ for the $B^{0}\to J/\psi\gamma$ decay mode are excluded at 90% confidence level. For the $B^{0}_{s}\to J/\psi\gamma$ decay mode, branching fraction values larger than $7.4\times 10^{-6}$ are excluded at 90% confidence level, this is the first branching fraction limit for this decay.

Abstract

A search for the rare decay of a $B^{0}$ or $B^{0}_{s}$ meson into the final state $J/\psi\gamma$ is performed, using data collected by the LHCb experiment in $pp$ collisions at $\sqrt{s}=7$ and $8$ TeV, corresponding to an integrated luminosity of 3 fb$^{-1}$. The observed number of signal candidates is consistent with a background-only hypothesis. Branching fraction values larger than $1.7\times 10^{-6}$ for the $B^{0}\to J/\psi\gamma$ decay mode are excluded at 90% confidence level. For the $B^{0}_{s}\to J/\psi\gamma$ decay mode, branching fraction values larger than $7.4\times 10^{-6}$ are excluded at 90% confidence level, this is the first branching fraction limit for this decay.

Statistics

Citations

2 citations in Web of Science®
5 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

8 downloads since deposited on 18 Feb 2016
3 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2015
Deposited On:18 Feb 2016 11:46
Last Modified:05 Apr 2016 20:09
Publisher:American Physical Society
ISSN:1550-7998
Publisher DOI:https://doi.org/10.1103/PhysRevD.92.112002
Other Identification Number:arXiv:1510.04866

Download

Download PDF  'Search for the rare decays ${B}^{0}{\rightarrow}J/{\psi}{\gamma}$ and ${B}_{s}^{0}{\rightarrow}J/{\psi}{\gamma}$'.
Preview
Content: Published Version
Filetype: PDF
Size: 488kB
View at publisher
Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0)