A search for the fully reconstructed B0 s →µ+µ− γdecay is performed at the LHCb experiment using proton-proton collisions at √s= 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(B0 s →µ+µ− γ) <4.2 ×10−8, m(µ+µ−) ∈[2mµ, 1.70] GeV/c2 , B(B0 s →µ+µ− γ) <7.7 ×10−8, m(µ+µ−) ∈[1.70, 2.88] GeV/c2 , B(B0 s →µ+µ− γ) <4.2 ×10−8, m(µ+µ−) ∈[3.92, mB0 s ] 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.

Search for the $$ {B}_s^0 $$ → μ+μ−γ decay / Null, N., Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Aliouche, Z., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:7(2024). [10.1007/jhep07(2024)101]

Search for the $$ {B}_s^0 $$ → μ+μ−γ decay

Casse, G.;Sarti, A.;
2024

Abstract

A search for the fully reconstructed B0 s →µ+µ− γdecay is performed at the LHCb experiment using proton-proton collisions at √s= 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(B0 s →µ+µ− γ) <4.2 ×10−8, m(µ+µ−) ∈[2mµ, 1.70] GeV/c2 , B(B0 s →µ+µ− γ) <7.7 ×10−8, m(µ+µ−) ∈[1.70, 2.88] GeV/c2 , B(B0 s →µ+µ− γ) <4.2 ×10−8, m(µ+µ−) ∈[3.92, mB0 s ] 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
B Physics, Flavour Physics, Hadron-Hadron Scattering , Rare Decay
01 Pubblicazione su rivista::01a Articolo in rivista
Search for the $$ {B}_s^0 $$ → μ+μ−γ decay / Null, N., Aaij, R., Abdelmotteleb, A.S.W., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adefisoye, A.A., Adeva, B., Adinolfi, M., Adlarson, P., Agapopoulou, C., Aidala, C.A., Ajaltouni, Z., Akar, S., Akiba, K., Albicocco, P., Albrecht, J., Alessio, F., Alexander, M., Aliouche, Z., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2024:7(2024). [10.1007/jhep07(2024)101]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1720314
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