Observation of Bs -> J/ψf'2(1525) in J/ψK+K- final states

Abstract

The decay Bs -> J/ψK+ K- is investigated using 0.16/fb of data collected with the LHCb detector using 7 TeV pp collisions. Although the J/ψϕ channel is well known, final states at higher K+K- masses have not previously been studied. In the K+K- mass spectrum we observe a significant signal in the f'2(1525) region as well as a non-resonant component. After subtracting the non-resonant component, we find B(Bs->J/ψf'_2(1525))/B(Bs->J/ψϕ)=(26.4 +/- 2.7 +/- 2.4)%.

7 pages, 5 figures, v2 many revisions, submitted to PRL

References in corpus (5)

• PYTHIA 6.4 Physics and Manual
• Measurement of the CP-violating phase phi_s in the decay Bs->J/psi phi
• Measurement of the CP-violating phase ${\varphi }_s^{J/\psi \varphi }$ using the flavor-tagged decay $B_s^0\to J/\psi \varphi$ in 8 fb${}^{-1}$ of $p \barp$ collisions
• Measurement of the CP-Violating Phase beta_s in B0s -> J/Psi Phi Decays with the CDF II Detector
• Measurement of the CP violating phase ϕ_s in Bs->J/ψf0(980)

Cited by in corpus (14)

• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• 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
• The Status of Glueballs
• Weak decays of heavy hadrons into dynamically generated resonances
• Amplitude analysis and branching fraction measurement of Bs->J/ψK+K-
• Resonances and $CP$ violation in $B_s^0$ and ${\overline{B}}_s^0\to J/\psi K^{+}{K}^{-}$ decays in the mass region above the $\varphi (1020)$
• Angular analysis of $B_s\to f_2^{\prime }(1525)(\to K^{+}{K}^{-}){\mu }^{+}{\mu }^{-}$ decays as a probe to lepton flavor universality violation
• Time-dependent Dalitz-plot formalism for B_q -> J/ψ h+ h-
• Studies of the resonance components in the $B_s$ decays into charmonia plus kaon pair
• Hunting for a scalar glueball in exclusive B decays
• Study of the decay $B_s^0\to J/\psi f_2^{\prime }(1525)$ in ${\mu }^{+}{\mu }^{-}{K}^{+}{K}^{-}$ final states
• Analysis of the nonleptonic charmonium modes $B_s^0\to J/\psi f_2^{\prime }(1525)$ and $B_s^0\to J/\psi K^{+}{K}^{-}$
• Mixing and $CP$ violation results in $b$-hadron decays at LHCb