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Observation of B+ →p Λ ̄ K+K- and B+ → p ̄ Λk+K+ OBSERVATION of ... P.-C. LU et al.

Publication ,  Journal Article
Lu, PC; Wang, MZ; Chistov, R; Chang, P; Adachi, I; Ahn, JK; Aihara, H; Al Said, S; Asner, DM; Atmacan, H; Aulchenko, V; Aushev, T; Ayad, R ...
Published in: Physical Review D
February 1, 2019

We report the study of B+→pΛ̄K+K- and B+→p̄ΛK+K+ decays using a 772×106 BB̄ pair data sample recorded on the Ï (4S) resonance with the Belle detector at KEKB. The following branching fractions are measured: B(B+→pΛ̄K+K-)=(4.10-0.43+0.45±0.50)×10-6, B(B+→p̄ΛK+K+)=(3.70-0.37+0.39±0.44)×10-6, B(ηc→pΛ̄K-+c.c.)=(2.83-0.34+0.36±0.35)×10-3 and B(B+→pΛ̄φ)=(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)Λ̄+c.c.)=(3.48±1.48±0.46)×10-3 and B(B+→Λ(1520)Λ̄K+)=(2.23±0.63±0.25)×10-6. No significant signals are found for J/ψ→Λ(1520)Λ̄+c.c. and B+→Λ̄(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.

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Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

February 1, 2019

Volume

99

Issue

3
 

Citation

APA
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MLA
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Lu, P. C., Wang, M. Z., Chistov, R., Chang, P., Adachi, I., Ahn, J. K., … Lai, Y. T. (2019). Observation of B+ →p Λ ̄ K+K- and B+ → p ̄ Λk+K+ OBSERVATION of ... P.-C. LU et al. Physical Review D, 99(3). https://doi.org/10.1103/PhysRevD.99.032003
Lu, P. C., M. Z. Wang, R. Chistov, P. Chang, I. Adachi, J. K. Ahn, H. Aihara, et al. “Observation of B+ →p Λ ̄ K+K- and B+ → p ̄ Λk+K+ OBSERVATION of ... P.-C. LU et al.Physical Review D 99, no. 3 (February 1, 2019). https://doi.org/10.1103/PhysRevD.99.032003.
Lu PC, Wang MZ, Chistov R, Chang P, Adachi I, Ahn JK, et al. Observation of B+ →p Λ ̄ K+K- and B+ → p ̄ Λk+K+ OBSERVATION of ... P.-C. LU et al. Physical Review D. 2019 Feb 1;99(3).
Lu, P. C., et al. “Observation of B+ →p Λ ̄ K+K- and B+ → p ̄ Λk+K+ OBSERVATION of ... P.-C. LU et al.Physical Review D, vol. 99, no. 3, Feb. 2019. Scopus, doi:10.1103/PhysRevD.99.032003.
Lu PC, Wang MZ, Chistov R, Chang P, Adachi I, Ahn JK, Aihara H, Al Said S, Asner DM, Atmacan H, Aulchenko V, Aushev T, Ayad R, Babu V, Badhrees I, Bakich AM, Bansal V, Behera P, Beleño C, Berger M, Bhardwaj V, Bhuyan B, Bilka T, Biswal J, Bonvicini G, Bozek A, Bračko M, Browder TE, Cao L, Červenkov D, Chang MC, Chekelian V, Chen A, Cheon BG, Chilikin K, Cho K, Choi SK, Choi Y, Choudhury S, Cinabro D, Cunliffe S, Dash N, Di Carlo S, DoleŽal Z, Dong TV, Drásal Z, Eidelman S, Epifanov D, Fast JE, Ferber T, Fulsom BG, Garg R, Gaur V, Gabyshev N, Garmash A, Gelb M, Giri A, Goldenzweig P, Guido E, Haba J, Hayasaka K, Hayashii H, Hirose S, Hou WS, Hsu CL, Iijima T, Inami K, Inguglia G, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Jacobs WW, Jeon HB, Jia S, Jin Y, Joffe D, Joo KK, Julius T, Kaliyar AB, Kawasaki T, Kichimi H, Kiesling C, Kim DY, Kim HJ, Kim JB, Kim KT, Kim SH, Kinoshita K, Kodyš P, Korpar S, Kotchetkov D, KriŽan P, Kroeger R, Krokovny P, Kuhr T, Kulasiri R, Kuzmin A, Kwon YJ, Lai YT. Observation of B+ →p Λ ̄ K+K- and B+ → p ̄ Λk+K+ OBSERVATION of ... P.-C. LU et al. Physical Review D. 2019 Feb 1;99(3).

Published In

Physical Review D

DOI

EISSN

2470-0029

ISSN

2470-0010

Publication Date

February 1, 2019

Volume

99

Issue

3