Searches for $B_{(s)}^0\to J/\psi p\overline{p}$ and $B^{+}\to J/\psi p\overline{p}{\pi }^{+}$ decays

Abstract

The results of searches for $B_{(s)}^0\to J/\psi p\overline{p}$ and $B^{+}\to J/\psi p\overline{p}{\pi }^{+}$ decays are reported. The analysis is based on a data sample, corresponding to an integrated luminosity of 1.0 fb${}^{-1}$ of $pp$ collisions, collected with the LHCb detector. An excess with 2.8$\sigma$ significance is seen for the decay $B_s^0\to J/\psi p\overline{p}$ and an upper limit on the branching fraction is set at the 90 % confidence level: $\mathcal{B}(B_s^0\to J/\psi p\overline{p})<4.8\times 10^{-6}$, which is the first such limit. No significant signals are seen for $B^0\to J/\psi p\overline{p}$ and $B^{+}\to J/\psi p\overline{p}{\pi }^{+}$ decays, for which the corresponding limits are set: $\mathcal{B}(B^0\to J/\psi p\overline{p})<5.2\times 10^{-7}$, which significantly improves the existing limit; and $\mathcal{B}(B^{+}\to J/\psi p\overline{p}{\pi }^{+})<5.0\times 10^{-7}$, which is the first limit on this branching fraction.

12 pages, 3 figures

References in corpus (4)

• PYTHIA 6.4 Physics and Manual
• Analysis of the resonant components in B0->J/ψpi+pi-
• Study of the decay mechanism for B+ to p pbar K+ and B+ to p pbar pi+
• Charmful Three-body Baryonic B decays

Cited by in corpus (13)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Massive Gravity
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2018
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021
• Slavnov-Taylor Identities for Primordial Perturbations
• (A)symmetries of weak decays at and near the kinematic endpoint
• Consistency Relations for the Conformal Mechanism
• Searches for ${\Lambda }_b^0$ and ${\Xi }_b^0$ decays to $K_{\mathrm{S}}^{0}p{\pi }^{-}$ and $K_{\mathrm{S}}^{0}p{K}^{-}$ final states with first observation of the ${\Lambda }_b^0\to K_{\mathrm{S}}^{0}p{\pi }^{-}$ decay
• The anamorphic universe
• Multiple Soft Limits of Cosmological Correlation Functions
• On the Initial State and Consistency Relations
• Cosmological matching conditions and galilean genesis in Horndeski's theory
• Observation of $B_{(s)}^0\to J/\psi p\overline{p}$ decays and precision measurements of the $B_{(s)}^0$ masses