TY - JOUR
T1 - Measurements of the branching fraction ratio B(ϕ→μ
+μ
−)/B(ϕ→e
+e
−) with charm meson decays
AU - Aaij, R.
AU - Abdelmotteleb, A. S.W.
AU - Abellan Beteta, C.
AU - Abudinén, F.
AU - Ackernley, T.
AU - Adeva, B.
AU - Adinolfi, M.
AU - Adlarson, P.
AU - Agapopoulou, C.
AU - Aidala, C. A.
AU - Ajaltouni, Z.
AU - Akar, S.
AU - Akiba, K.
AU - Albicocco, P.
AU - Albrecht, J.
AU - Alessio, F.
AU - Alexander, M.
AU - Alfonso Albero, A.
AU - Aliouche, Z.
AU - Alvarez Cartelle, P.
AU - Amalric, R.
AU - Amato, S.
AU - Amey, J. L.
AU - Amhis, Y.
AU - An, L.
AU - Anderlini, L.
AU - Andersson, M.
AU - Andreianov, A.
AU - Andreola, P.
AU - Andreotti, M.
AU - Andreou, D.
AU - Anelli, A.
AU - Ao, D.
AU - Archilli, F.
AU - Argenton, M.
AU - Arguedas Cuendis, S.
AU - Artamonov, A.
AU - Artuso, M.
AU - Aslanides, E.
AU - Atzeni, M.
AU - Audurier, B.
AU - Bacher, D.
AU - Bachiller Perea, I.
AU - Bachmann, S.
AU - Bachmayer, M.
AU - Back, J. J.
AU - Baladron Rodriguez, P.
AU - Balagura, V.
AU - Baldini, W.
AU - Baptista de Souza Leite, J.
AU - LHCb collaboration
AU - da silva Bolognani, Carolina
AU - Cámpora Pérez, Daniel Hugo
AU - de Vries, Jacco
AU - Lucio Martinez, Miriam
AU - Merk, Marcel
AU - Nicotra, Davide
AU - Onderwater, Gerco
AU - Pawley, Chris
AU - Vos, Keri
N1 - Publisher Copyright:
© The Author(s) 2024.
PY - 2024/5/1
Y1 - 2024/5/1
N2 - Measurements of the branching fraction ratio B(ϕ→μ
+μ
−)/B(ϕ→e
+e
−) with D
s
+→π
+ϕ and D
+→ π
+ϕ decays, denoted R
ϕπ
s and R
ϕπ
d, are presented. The analysis is performed using a dataset corresponding to an integrated luminosity of 5.4 fb
−1 of pp collision data collected with the LHCb experiment. The branching fractions are normalised with respect to the B
+ → K
+J/ψ(→ e
+e
−) and B
+ → K
+J/ψ(→ μ
+μ
−) decay modes. The combination of the results yields (Formula presented.) The result is compatible with previous measurements of the ϕ → ℓ
+ℓ
− branching fractions and predictions based on the Standard Model.
AB - Measurements of the branching fraction ratio B(ϕ→μ
+μ
−)/B(ϕ→e
+e
−) with D
s
+→π
+ϕ and D
+→ π
+ϕ decays, denoted R
ϕπ
s and R
ϕπ
d, are presented. The analysis is performed using a dataset corresponding to an integrated luminosity of 5.4 fb
−1 of pp collision data collected with the LHCb experiment. The branching fractions are normalised with respect to the B
+ → K
+J/ψ(→ e
+e
−) and B
+ → K
+J/ψ(→ μ
+μ
−) decay modes. The combination of the results yields (Formula presented.) The result is compatible with previous measurements of the ϕ → ℓ
+ℓ
− branching fractions and predictions based on the Standard Model.
KW - B Physics
KW - Branching fraction
KW - Charm Physics
KW - Hadron-Hadron Scattering
U2 - 10.1007/JHEP05(2024)293
DO - 10.1007/JHEP05(2024)293
M3 - Article
SN - 1029-8479
VL - 2024
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 5
M1 - 293
ER -