Measurement of the branching fraction and CP asymmetry in B plus . J/.. plus decays



Aaij, R, Beteta, C Abellan, Adeva, B, Adinolfi, M, Aidala, CA, Ajaltouni, Z, Akar, S, Albicocco, P, Albrecht, J, Alessio, F
et al (show 835 more authors) (2019) Measurement of the branching fraction and CP asymmetry in B plus . J/.. plus decays. EUROPEAN PHYSICAL JOURNAL C, 79 (6). 537-.

[img] Text
Aaij2019_Article_MeasurementOfTheBranchingFract.pdf - Published version

Download (932kB) | Preview

Abstract

The branching fraction and direct $C\!P$ asymmetry of the decay $B^{+}\rightarrow J/\psi \rho^{+}$ are measured using proton-proton collision data collected with the LHCb detector at centre-of-mass energies of 7 and 8 TeV, corresponding to a total integrated luminosity of 3$\mbox{fb}^{-1}$. The following results are obtained: \begin{align} \mathcal{B}(B^{+}\rightarrow J/\psi \rho^{+}) &= (3.81 ^{+0.25}_{-0.24} \pm 0.35) \times 10^{-5}, \nonumber \\ \mathcal{A}^{C\!P} (B^{+}\rightarrow J/\psi \rho^{+}) &= -0.045^{+0.056}_{-0.057} \pm 0.008, \nonumber \end{align} where the first uncertainties are statistical and the second systematic. Both measurements are the most precise to date.

Item Type: Article
Additional Information: All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2018-036.html
Uncontrolled Keywords: hep-ex, hep-ex
Depositing User: Symplectic Admin
Date Deposited: 16 Jan 2020 17:31
Last Modified: 19 Jan 2023 00:09
DOI: 10.1140/epjc/s10052-019-6698-3
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3070892