pdgLive Home   >   ${{\mathit B}^{\pm}}$   >   B(${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit e}^{+}}{{\mathit e}^{-}}$) $/$ B(${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$) (1.1 $<$ q${}^{2}$ $<$ 7.0 GeV${}^{2}$/c${}^{4}$)

PARTIAL BRANCHING FRACTIONS

B(${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit e}^{+}}{{\mathit e}^{-}}$) $/$ B(${{\mathit B}^{+}}$ $\rightarrow$ ${{\mathit K}^{+}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}$) (1.1 $<$ q${}^{2}$ $<$ 7.0 GeV${}^{2}$/c${}^{4}$)

INSPIRE   JSON PDGID:

S041D63

VALUE DOCUMENT ID TECN  COMMENT $1.31$ ${}^{+0.18}_{-0.17}$ ${}^{+0.12}_{-0.09}$ AAIJ 2025 L   LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 and 13 TeV

References

Except where otherwise noted, content of the 2026 Review of Particle Physics is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT and KEK (Japan), INFN (Italy) and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2026. See LBNL disclaimers.