TY - JOUR
T1 - Test of Lepton Flavor Universality with B+ →k+π+π-ℓ+ℓ- Decays
AU - (LHCb Collaboration)
AU - Aaij, R.
AU - Abdelmotteleb, A. S.W.
AU - Abellan Beteta, C.
AU - Abudinén, F.
AU - Ackernley, T.
AU - Adefisoye, A. A.
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 - 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 - Ataíde Da Silva, R.
AU - Atzeni, M.
AU - Audurier, B.
AU - Bacher, D.
AU - Bachiller Perea, I.
AU - Bachmann, S.
AU - Bachmayer, M.
AU - Back, J. J.
AU - Balagura, V.
AU - Fleuret, F.
AU - Maurice, E.
N1 - Publisher Copyright:
© 2025 CERN.
PY - 2025/5/9
Y1 - 2025/5/9
N2 - The first test of lepton flavor universality between muons and electrons using B+→K+π+π-ℓ+ℓ- (ℓ=e, μ) decays is presented. The measurement is performed with data from proton-proton collisions collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb-1. The ratio of branching fractions between B+→K+π+π-e+e- and B+→K+π+π-μ+μ- decays is measured in the dilepton invariant-mass-squared range 1.1
AB - The first test of lepton flavor universality between muons and electrons using B+→K+π+π-ℓ+ℓ- (ℓ=e, μ) decays is presented. The measurement is performed with data from proton-proton collisions collected by the LHCb experiment at center-of-mass energies of 7, 8, and 13 TeV, corresponding to an integrated luminosity of 9 fb-1. The ratio of branching fractions between B+→K+π+π-e+e- and B+→K+π+π-μ+μ- decays is measured in the dilepton invariant-mass-squared range 1.1
UR - https://www.scopus.com/pages/publications/105005143172
U2 - 10.1103/PhysRevLett.134.181803
DO - 10.1103/PhysRevLett.134.181803
M3 - Article
AN - SCOPUS:105005143172
SN - 0031-9007
VL - 134
JO - Physical Review Letters
JF - Physical Review Letters
IS - 18
M1 - 181803
ER -