A search for the fully reconstructed → μ+μ−γ decay is performed at the LHCb experiment using proton-proton collisions at = 13 TeV corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is found and upper limits on the branching fraction in intervals of the dimuon mass are set= 13 TeV corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is found and upper limits on the branching fraction in intervals of the dimuon mass are set B(B0s → µ+µ−γ) < 4.2 × 10−8, m(µ+µ−) ∈ [2mµ, 1.70] GeV/c2 B(B0s → µ+µ−γ) < 7.7 × 10−8, m(µ+µ−) ∈ [1.70, 2.88] GeV/c2 B(B0s → µ+µ−γ) < 4.2 × 10−8, m(µ+µ−) ∈ [3.92, mB0s] GeV/c2 at 95% confidence level. Additionally, upper limits are set on the branching fraction in the [2mμ, 1.70] GeV/c2 dimuon mass region excluding the contribution from the intermediate ϕ(1020) meson, and in the region combining all dimuon-mass intervals.

(2024). Search for the B0s → μ + μ − γ decay [journal article - articolo]. In JOURNAL OF HIGH ENERGY PHYSICS. Retrieved from https://hdl.handle.net/10446/275150

Search for the B0s → μ + μ − γ decay

Lupato, A.;Redi, F.;
2024-01-01

Abstract

A search for the fully reconstructed → μ+μ−γ decay is performed at the LHCb experiment using proton-proton collisions at = 13 TeV corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is found and upper limits on the branching fraction in intervals of the dimuon mass are set= 13 TeV corresponding to an integrated luminosity of 5.4 fb−1. No significant signal is found and upper limits on the branching fraction in intervals of the dimuon mass are set B(B0s → µ+µ−γ) < 4.2 × 10−8, m(µ+µ−) ∈ [2mµ, 1.70] GeV/c2 B(B0s → µ+µ−γ) < 7.7 × 10−8, m(µ+µ−) ∈ [1.70, 2.88] GeV/c2 B(B0s → µ+µ−γ) < 4.2 × 10−8, m(µ+µ−) ∈ [3.92, mB0s] GeV/c2 at 95% confidence level. Additionally, upper limits are set on the branching fraction in the [2mμ, 1.70] GeV/c2 dimuon mass region excluding the contribution from the intermediate ϕ(1020) meson, and in the region combining all dimuon-mass intervals.
articolo
2024
Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P.; Agapopoul...espandi
(2024). Search for the B0s → μ + μ − γ decay [journal article - articolo]. In JOURNAL OF HIGH ENERGY PHYSICS. Retrieved from https://hdl.handle.net/10446/275150
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10446/275150
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