A measurement of the ratio of the branching fractions of the B+→K+μ+μ- and B+→K+e+e- decays is presented using proton-proton collision data, corresponding to an integrated luminosity of 3.0 fb-1, recorded with the LHCb experiment at center-of-mass energies of 7 and 8 TeV. The value of the ratio of branching fractions for the dilepton invariant mass squared range 1<q2<6 GeV2/c4 is measured to be 0.745-0.074+0.090(stat)±0.036(syst). This value is the most precise measurement of the ratio of branching fractions to date and is compatible with the standard model prediction within 2.6 standard deviations
Tests of lepton universality in B0→K0Sℓ+ℓ− and B+→K*+ℓ+ℓ− decays where ℓ is either an electron or a ...
A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B...
A test of lepton universality, performed by measuring the ratio of the branching fractions of the B0...
A measurement of the ratio of the branching fractions of the B+→K+μ+μ− and B+→K+e+e− decays is prese...
A measurement of the ratio of branching fractions of the decays B + → K + μ + μ − and ...
A measurement of the ratio of the branching fractions of the B+ -> K+mu(+)mu(-) and B+ -> K(+)...
A measurement of the ratio of branching fractions of the decays B^+→K^+μ^+μ^- and B^+→K^+e^+e^- is p...
A measurement of the ratio of branching fractions of the decays B+→K+μ+μ− and B+→K+e+e− is presented...
A measurement of the ratio of branching fractions of the decays B+ -> K+mu(+)mu(-) and B+ -> K...
A measurement of the ratio of branching fractions of the decays B + → K + μ + μ − and B + → K + e + ...
A measurement of the ratio of branching fractions of the decays B+→K+μ+μ-and B+→K+e+e-is presented. ...
Tests of lepton universality in B0→K0Sℓ+ℓ− and B+→K*+ℓ+ℓ− decays where ℓ is either an electron or a ...
A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B...
A test of lepton universality, performed by measuring the ratio of the branching fractions of the B0...
A measurement of the ratio of the branching fractions of the B+→K+μ+μ− and B+→K+e+e− decays is prese...
A measurement of the ratio of branching fractions of the decays B + → K + μ + μ − and ...
A measurement of the ratio of the branching fractions of the B+ -> K+mu(+)mu(-) and B+ -> K(+)...
A measurement of the ratio of branching fractions of the decays B^+→K^+μ^+μ^- and B^+→K^+e^+e^- is p...
A measurement of the ratio of branching fractions of the decays B+→K+μ+μ− and B+→K+e+e− is presented...
A measurement of the ratio of branching fractions of the decays B+ -> K+mu(+)mu(-) and B+ -> K...
A measurement of the ratio of branching fractions of the decays B + → K + μ + μ − and B + → K + e + ...
A measurement of the ratio of branching fractions of the decays B+→K+μ+μ-and B+→K+e+e-is presented. ...
Tests of lepton universality in B0→K0Sℓ+ℓ− and B+→K*+ℓ+ℓ− decays where ℓ is either an electron or a ...
A test of lepton universality, performed by measuring the ratio of the branching fractions of the $B...
A test of lepton universality, performed by measuring the ratio of the branching fractions of the B0...