From: B meson decays
Mode
BaBar [277]
Belle [278]
CDF [279]
Average [243]
K+â„“+â„“-
0.38 − 0.08 + 0.09 ± 0.02 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiodaZiabiIda4maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIWaamcqaI4aaoaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIWaamcqaI5aqoaaGccqGHXcqScqaIWaamcqGGUaGlcqaIWaamcqaIYaGmaaa@3DDF@
0.53 − 0.05 + 0.06 ± 0.03 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiwda1iabiodaZmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIWaamcqaI1aqnaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIWaamcqaI2aGnaaGccqGHXcqScqaIWaamcqGGUaGlcqaIWaamcqaIZaWmaaa@3DCF@
-
0.49 ± 0.05
K + e + e -
0.42 − 0.11 + 0.12 ± 0.02 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabisda0iabikdaYmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIXaqmcqaIXaqmaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIXaqmcqaIYaGmaaGccqGHXcqScqaIWaamcqGGUaGlcqaIWaamcqaIYaGmaaa@3DBD@
0.57 − 0.08 + 0.09 ± 0.03 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiwda1iabiEda3maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIWaamcqaI4aaoaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIWaamcqaI5aqoaaGccqGHXcqScqaIWaamcqGGUaGlcqaIWaamcqaIZaWmaaa@3DE3@
0.52 ± 0.07
K + μ + μ -
0.31 − 0.12 + 0.15 ± 0.03 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiodaZiabigdaXmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIXaqmcqaIYaGmaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIXaqmcqaI1aqnaaGccqGHXcqScqaIWaamcqGGUaGlcqaIWaamcqaIZaWmaaa@3DC3@
0.50 − 0.06 + 0.07 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiwda1iabicdaWmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIWaamcqaI2aGnaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIWaamcqaI3aWnaaaaaa@3821@
0.59 ± 0.15 ± 0.04
0.73 − 0.42 + 0.50 ± 0.21 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiEda3iabiodaZmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaI0aancqaIYaGmaeaacqGHRaWkcqaIWaamcqGGUaGlcqaI1aqncqaIWaamaaGccqGHXcqScqaIWaamcqGGUaGlcqaIYaGmcqaIXaqmaaa@3DD3@
K*+â„“+â„“-
1.24 − 0.20 + 0.23 ± 0.12 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabigdaXiabc6caUiabikdaYiabisda0maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIYaGmcqaIWaamaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIYaGmcqaIZaWmaaGccqGHXcqScqaIWaamcqGGUaGlcqaIXaqmcqaIYaGmaaa@3DC5@
1.15 − 0.21 + 0.23 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabigdaXiabc6caUiabigdaXiabiwda1maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIYaGmcqaIXaqmaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIYaGmcqaIZaWmaaaaaa@381B@
K*+e+e-
0.75 − 0.65 + 0.76 ± 0.38 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiEda3iabiwda1maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaI2aGncqaI1aqnaeaacqGHRaWkcqaIWaamcqGGUaGlcqaI3aWncqaI2aGnaaGccqGHXcqScqaIWaamcqGGUaGlcqaIZaWmcqaI4aaoaaa@3E01@
1.64 − 0.42 + 0.50 ± 0.18 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabigdaXiabc6caUiabiAda2iabisda0maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaI0aancqaIYaGmaeaacqGHRaWkcqaIWaamcqGGUaGlcqaI1aqncqaIWaamaaGccqGHXcqScqaIWaamcqGGUaGlcqaIXaqmcqaI4aaoaaa@3DE1@
1.42 − 0.39 + 0.43 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabigdaXiabc6caUiabisda0iabikdaYmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIZaWmcqaI5aqoaeaacqGHRaWkcqaIWaamcqGGUaGlcqaI0aancqaIZaWmaaaaaa@3831@
K*+μ+μ-
0.97 − 0.69 + 0.94 ± 0.14 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabicdaWiabc6caUiabiMda5iabiEda3maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaI2aGncqaI5aqoaeaacqGHRaWkcqaIWaamcqGGUaGlcqaI5aqocqaI0aanaaGccqGHXcqScqaIWaamcqGGUaGlcqaIXaqmcqaI0aanaaa@3E05@
1.14 − 0.27 + 0.32 ± 0.10 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabigdaXiabc6caUiabigdaXiabisda0maaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIYaGmcqaI3aWnaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIZaWmcqaIYaGmaaGccqGHXcqScqaIWaamcqGGUaGlcqaIXaqmcqaIWaamaaa@3DCD@
1.12 − 0.27 + 0.32 MathType@MTEF@5@5@+=feaagaart1ev2aaatCvAUfKttLearuWrP9MDH5MBPbIqV92AaeXatLxBI9gBaebbnrfifHhDYfgasaacH8bkY=wiFfYlOipiY=Hhbbf9v8qqaqFr0xc9vqpe0di9q8qqpG0dHiVcFbIOFHK8Feei0lXdar=Jb9qqFfeaYRXxe9vr0=vr0=LqpWqaaeaabiGaciaacaqabeaabeqacmaaaOqaaiabigdaXiabc6caUiabigdaXiabikdaYmaaDaaaleaacqGHsislcqaIWaamcqGGUaGlcqaIYaGmcqaI3aWnaeaacqGHRaWkcqaIWaamcqGGUaGlcqaIZaWmcqaIYaGmaaaaaa@3821@