A search for the decay B0 → ϕ ϕ is made using pp collision data collected with the LHCb detector 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, and an upper limit on the branching fraction of 1.3(1.4) × 10^−8 at 90(95)% confidence level is set. This result supersedes the previous LHCb study and improves the upper limit by a factor of two.

Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., et al. (2025). Search for the decay B0 → ϕϕ. JOURNAL OF HIGH ENERGY PHYSICS, 2025(12), 0-21 [10.1007/jhep12(2025)026].

Search for the decay B0 → ϕϕ

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

Abstract

A search for the decay B0 → ϕ ϕ is made using pp collision data collected with the LHCb detector 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, and an upper limit on the branching fraction of 1.3(1.4) × 10^−8 at 90(95)% confidence level is set. This result supersedes the previous LHCb study and improves the upper limit by a factor of two.
2025
Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., et al. (2025). Search for the decay B0 → ϕϕ. JOURNAL OF HIGH ENERGY PHYSICS, 2025(12), 0-21 [10.1007/jhep12(2025)026].
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/11585/1036712
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