The decays B+→ J/ψπ+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 areBB+→ψ2(3823)K+×Bψ2(3823)→J/ψπ+π−BB+→χc1(3872)K+×Bχc1(3872)→J/ψπ+π−=(3.56±0.67±0.11)×10−2,BB+→ψ2(3823)K+×Bψ2(3823)→J/ψπ+π−BB+→ψ(2S)K+×Bψ(2S)→J/ψπ+π−=(1.31±0.25±0.04)×10−3,BB+→χc1(3872)K+×Bχc1(3872)→J/ψπ+π−BB+→ψ(2S)K+×Bψ(2S)→J/ψπ+π−=(3.69±0.07±0.06)×10−2, where the first uncertainty is statistical and the second is systematic. The decay of B+→ ψ2(3823)K+ with ψ2(3823) → J/ψπ+π− is observed for the first time with ...
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 B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a...
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/ψ π+ π− K+ are studied using a data set corresponding to an integrated luminosity ...
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 9...
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 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 B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a...
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/ψ π+ π− K+ are studied using a data set corresponding to an integrated luminosity ...
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 9...
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 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 B-s(0) meson decays into J/psi eta and J/psi eta' final states is performed using a...