The decays B+ → J/ψ π+ π− K+ are studied using a data set corresponding to an integrated luminosity of 9 fb^−1 collected with the LHCb detector in proton-proton collisions between 2011 and 2018. Precise measurements of the ratios of branching fractions with the intermediate ψ2(3823), χc1(3872) and ψ(2S) states are reported. The values are (B{B+ → ψ2(3823) K+} × B{ψ2(3823) → J/ψ π+ π−})/(B{B+ → χc1(3872) K+} × B{χc1(3872) → J/ψ π+ π−}) = (3.56 ± 0.67 ± 0.11) × 10^−2, (B{B+ → ψ2(3823) K+} × B{ψ2(3823) → J/ψ π+ π−})/(B{B+ → ψ(2S) K+} × B{ψ(2S) → J/ψ π+ π−}) = (1.31 ± 0.25 ± 0.04) × 10^−3, (B{B+ → χc1(3872) K+} × B{χc1(3872) → J/ψ π+ π−})/(B{B+ → ψ(2S) K+} × B{ψ(2S) → J/ψ π+ π−}) = (3.69 ± 0.07 ± 0.06) × 10^−2, where the first uncertainty is st...
A study of B0 and B0s meson decays into J/ψ η and J/ψ η′ final states is performed using a data set ...
A study of B and B0 s meson decays into J/ψη and J/ψη0 final states is performed using a data set of...
A study of B and B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a...
The decays B+ → J/ψ π+ π− K+ are studied using a data set corresponding to an integrated luminosity ...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+ → J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of ...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
A study of B0 and B0s meson decays into J/ψ η and J/ψ η′ final states is performed using a data set ...
A study of B0 and B0s meson decays into J/ψ η and J/ψ η′ final states is performed using a data set ...
A study of B and B0 s meson decays into J/ψη and J/ψη0 final states is performed using a data set of...
A study of B and B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a...
The decays B+ → J/ψ π+ π− K+ are studied using a data set corresponding to an integrated luminosity ...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+ → J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of ...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
The decays B+→ J/ψπ+π−K+ are studied using a data set corresponding to an integrated luminosity of 9...
A study of B0 and B0s meson decays into J/ψ η and J/ψ η′ final states is performed using a data set ...
A study of B0 and B0s meson decays into J/ψ η and J/ψ η′ final states is performed using a data set ...
A study of B and B0 s meson decays into J/ψη and J/ψη0 final states is performed using a data set of...
A study of B and B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a...