First Observation of the Cabibbo Suppressed Decay {ital B}{sup {ital +}}{ital {r_arrow} {bar {ital D}}}{sup {ital 0}}{ital K}{sup +}

Journal Article · Mon Jun 01 04:00:00 EDT 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.80.5493· OSTI ID:656281

Athanas, M; Avery, P; Jones, C D; Lohner, M; Patton, S; Prescott, C; Yelton, J; Zheng, J ^[1]; Brandenburg, G; Briere, R A; Ershov, A; Gao, Y S; Kim, D Y; Wilson, R; Yamamoto, H ^[2]; Browder, T E; Li, Y; Rodriguez, J L ^[3]; Bergfeld, T; Eisenstein, B I ; Ernst, J; Gladding, G E; Gollin, G D; Hans, R M; Johnson, E; Karliner, I; Marsh, M A; Palmer, M; Selen, M; Thaler, J J ^[4]; Edwards, K W ^[5]; Bellerive, A; Janicek, R; MacFarlane, D B; Patel, P M ^[6]; Sadoff, A J ^[7]; Ammar, R; Baringer, P; Bean, A; Besson, D; Coppage, D; Darling, C; Davis, R; Kotov, S; Kravchenko, I; Kwak, N; Zhou, L ^[8]; Anderson, S; Kubota, Y; Lee, S J; ONeill, J J; Poling, R; Riehle, T; Smith, A ^[9]; Alam, M S; Athar, S B; Ling, Z; Mahmood, A H; Timm, S; Wappler, F ^[10]; Anastassov, A; Duboscq, J E; Fujino, D; Gan, K K; Hart, T; Honscheid, K; Kagan, H; Kass, R; Lee, J; Spencer, M B; Sung, M; Undrus, A; Wolf, A; Zoeller, M M ^[11]; Nemati, B; Richichi, S J; Ross, W R; Severini, H; Skubic, P ^[12]; Bishai, M; Fast, J; Hinson, J W; Menon, N; Miller, D H; Shibata, E I; Shipsey, I P; others, and

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1. University of Florida, Gainesville, Florida 32611 (United States)
2. Harvard University, Cambridge, Massachusetts 02138 (United States)
3. University of Hawaii at Manoa, Honolulu, Hawaii 96822 (United States)
4. University of Illinois, Urbana-Champaign, Illinois 61801 (United States)
5. Carleton University, Ottawa, Ontario, Canada K1S 5B6 and the Institute of Particle Physics (Canada)
6. McGill University, Montreal, Quebec, Canada H3A 2T8 and the Institute of Particle Physics (Canada)
7. Ithaca College, Ithaca, New York 14850 (United States)
8. University of Kansas, Lawrence, Kansas 66045 (United States)
9. University of Minnesota, Minneapolis, Minnesota 55455 (United States)
10. State University of New York at Albany, Albany, New York 12222 (United States)
11. The Ohio State University, Columbus, Ohio 43210 (United States)
12. University of Oklahoma, Norman, Oklahoma 73019 (United States)

We have observed the decay B{sup +}{r_arrow}{bar D}{sup 0} K{sup +} , using 3.3{times}10{sup 6} B{bar B} pairs collected with the CLEO II detector at the Cornell Electron Storage Ring. We find the ratio of branching fractions R{equivalent_to}B(B{sup +}{r_arrow}{bar D}{sup 0}K{sup +})/B(B{sup +}{r_arrow}{bar D}{sup 0}{pi}{sup +})=0.055{plus_minus}0.014{plus_minus}0.005 . {copyright} {ital 1998} {ital The American Physical Society}

• OSTI ID: 656281
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 80; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

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