A search for the decay Bc+ → χc1(3872) π+ is reported using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb^−1. No significant signal is observed. Using the decay Bc+ → ψ(2S) π+ as a normalisation channel, an upper limit for the ratio of branching fractions R_ψ(2S)^χc1(3872) = B_{Bc+ → χc1(3872) π+} / B_{Bc+ → ψ(2S) π+} × B_{χc1(3872) → J/ψ π+ π−} / B_{ψ(2S) → J/ψ π+ π−} < 0.05(0.06), is set at the 90(95)% confidence level.

Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., et al. (2025). Search for the Bc+ → χc1(3872) π+ decay. JOURNAL OF HIGH ENERGY PHYSICS, 2025(6), 0-27 [10.1007/jhep06(2025)013].

Search for the Bc+ → χc1(3872) π+ decay

Carbone, A.;Ferrari, F.;Galli, D.;Patrignani, C.;Spedicato, E.;Villa, A.;Zenesini, F.;
2025

Abstract

A search for the decay Bc+ → χc1(3872) π+ is reported using proton-proton collision data collected with the LHCb detector between 2011 and 2018 at centre-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb^−1. No significant signal is observed. Using the decay Bc+ → ψ(2S) π+ as a normalisation channel, an upper limit for the ratio of branching fractions R_ψ(2S)^χc1(3872) = B_{Bc+ → χc1(3872) π+} / B_{Bc+ → ψ(2S) π+} × B_{χc1(3872) → J/ψ π+ π−} / B_{ψ(2S) → J/ψ π+ π−} < 0.05(0.06), is set at the 90(95)% confidence level.
2025
Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., et al. (2025). Search for the Bc+ → χc1(3872) π+ decay. JOURNAL OF HIGH ENERGY PHYSICS, 2025(6), 0-27 [10.1007/jhep06(2025)013].
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoul...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/1035151
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