The branching fractions of the decay B+ →
ppK¯ + for different intermediate states are measured using
data, corresponding to an integrated luminosity of 1.0 fb−1,
collected by the LHCb experiment. The total branching fraction,
its charmless component (Mpp¯ < 2.85 GeV/c2) and
the branching fractions via the resonant cc¯ states ηc(1S) and
ψ(2S) relative to the decay via a J/ψ intermediate state are
B(B+ → ppK¯ +)total
B(B+ → J/ψK+ → ppK¯ +)
= 4.91 ± 0.19 (stat) ± 0.14 (syst),
B(B+ → ppK¯ +)Mpp¯<2.85 GeV/c2
B(B+ → J/ψK+ → ppK¯ +)
= 2.02 ± 0.10 (stat) ± 0.08 (syst),
B(B+ → ηc(1S)K+ → ppK¯ +)
B(B+ → J/ψK+ → ppK¯ +)
= 0.578 ± 0.035 (stat) ± 0.027 (syst),
B(B+ → ψ(2S)K+ → ppK¯ +)
B(B+ → J/ψK+ → ppK¯ +)
= 0.080 ± 0.012 (stat) ± 0.009 (syst).
Upper limits on the B+ branching fractions into the ηc(2S)
meson and into the charmonium-like states X(3872) and
X(3915) are also obtained.