@article{69f634a7705e43be9f52ec8d1d1e1990,

title = "Observation of B+ →p Λ{\= } K+K- and B+ → p{\= } Λk+K+ OBSERVATION of ... P.-C. LU et al.",

abstract = "We report the study of B+→p{\=Λ}K+K- and B+→{\=p}ΛK+K+ decays using a 772×106 B{\=B} pair data sample recorded on the {\"I} (4S) resonance with the Belle detector at KEKB. The following branching fractions are measured: B(B+→p{\=Λ}K+K-)=(4.10-0.43+0.45±0.50)×10-6, B(B+→{\=p}ΛK+K+)=(3.70-0.37+0.39±0.44)×10-6, B(ηc→p{\=Λ}K-+c.c.)=(2.83-0.34+0.36±0.35)×10-3 and B(B+→p{\=Λ}φ)=(7.95±2.09±0.77)×10-7, where c.c. denotes the corresponding charge-conjugation process. The intermediate resonance decays are excluded in the four-body decay measurements. We also find evidence for B(ηc→Λ(1520){\=Λ}+c.c.)=(3.48±1.48±0.46)×10-3 and B(B+→Λ(1520){\=Λ}K+)=(2.23±0.63±0.25)×10-6. No significant signals are found for J/ψ→Λ(1520){\=Λ}+c.c. and B+→{\=Λ}(1520)ΛK+; we set the 90% confidence level upper limits on their decay branching fractions as <1.80×10-3 and <2.08×10-6, respectively.",

author = "{(The Belle Collaboration)} and Lu, {P. C.} and Wang, {M. Z.} and R. Chistov and P. Chang and I. Adachi and Ahn, {J. K.} and H. Aihara and {Al Said}, S. and Asner, {D. M.} and H. Atmacan and V. Aulchenko and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and C. Bele{\~n}o and M. Berger and V. Bhardwaj and B. Bhuyan and T. Bilka and J. Biswal and G. Bonvicini and A. Bozek and M. Bra{\v c}ko and Browder, {T. E.} and L. Cao and D. {\v C}ervenkov and Chang, {M. C.} and V. Chekelian and A. Chen and Cheon, {B. G.} and K. Chilikin and K. Cho and Choi, {S. K.} and Y. Choi and S. Choudhury and D. Cinabro and S. Cunliffe and N. Dash and {Di Carlo}, S. and Z. Dole{\v Z}al and Dong, {T. V.} and Z. Dr{\'a}sal and S. Eidelman and D. Epifanov and Fast, {J. E.} and H. Park",

note = "Publisher Copyright: {\textcopyright} 2019 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the https://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP.",

year = "2019",

month = feb,

day = "1",

doi = "10.1103/PhysRevD.99.032003",

language = "English",

volume = "99",

journal = "Physical Review D",

issn = "2470-0010",

publisher = "American Physical Society",

number = "3",

}