Observation of Cabibbo suppressed B -> D(*)K- decays at Belle - art. no. 111801

Authors
Abe, K Abe, K Adachi, I Ahn, BS Aihara, H Akatsu, M Alimonti, G Asano, Y Aso, T Aulchenko, V Aushev, T Bakich, AM Bartel, W Behari, S Behera, PK Beiline, D Bondar, A Bozek, A Browder, TE Casey, BCK Chang, P Chao, Y Cheon, BG Choi, SK Choi, Y Eidelman, S Enari, Y Enomoto, R Fang, F Fujii, H Fukunaga, C Fukushima, M Garmash, A Gordon, A Gotow, K Guo, R Haba, J Hamasaki, H Hanagaki, K Handa, F Hara, K Hara, T Hastings, NC Hayashii, H Hazumi, M Heenan, EM Higuchi, I Higuchi, T Hirano, H Hojo, T Hoshi, Y Hou, WS Hsu, SC Huang, HC Igarashi, Y Iijima, T Ikeda, H Inami, K Ishikawa, A Ishino, H Itoh, R Iwai, G Iwasaki, H Iwasaki, Y Jackson, DJ Jalocha, P Jang, HK Jones, M Kagan, R Kakuno, H Kaneko, J Kang, JH Kang, JS Katayama, N Kawai, H Kawai, H Kawasaki, T Kichimi, H Kim, DW Kim, H Kim, HJ Kim, H Kim, SK Kinoshita, K Kobayashi, S Krokovny, P Kulasiri, R Kumar, S Kuzmin, A Kwon, YJ Lange, JS Lee, MH Lee, SH Liventsev, D Lu, RS Marlow, D Matsubara, T Matsumoto, A Nagamine, T Nagasaka, Y Nakadaira, T Nakano, E Nakao, M Nam, JW Narita, S Neichi, K Nishida, S Nitoh, O Noguchi, S Nozaki, T Ogawa, S Ohshima, T Okabe, T Okuno, S Olsen, SL Ozaki, H Pakhlov, P Palka, H Park, CS Park, CW Park, H Peak, LS Peters, M Piilonen, LE Rodriguez, JL Root, N Rozanska, M Rybicki, K Ryuko, J Sagawa, H Sakai, Y Sakamoto, H Satapathy, M Satpathy, A Schrenk, S Semenov, S Senyo, K Sevior, ME Shibuya, H Shwartz, B Sidorov, V Singh, JB Stanic, S Sugi, A Sugiyama, A Sumisawa, K Sumiyoshi, T Suzuki, JI Suzuki, K Suzuki, S Suzuki, SY Swain, SK Takahashi, T Takasaki, F Takita, M Tamai, K Tamura, N Tanaka, J Tanaka, M Taylor, GN Teramoto, Y Tomoto, M Tomura, T Tovey, SN Trabelsi, K Tsuboyama, T Tsukamoto, T Uehara, S Ueno, K Unno, Y Uno, S Ushiroda, Y Usov, Y Vahsen, SE Varner, G Varvell, KE Wang, CC Wang, CH Wang, JG Wang, MZ Watanabe, Y Won, E Yabsley, BD Yamada, Y Yamaga, M Yamaguchi, A Yamamoto, H Yamashita, Y Yamauchi, M Yanaka, S Yokoyama, M Yoshida, K Yusa, Y Yuta, H Zhang, CC Zhang, J Zhao, HW Zheng, Y Zhilich, V Zontar, D
Citation
K. Abe et al., Observation of Cabibbo suppressed B -> D(*)K- decays at Belle - art. no. 111801, PHYS REV L, 8711(11), 2001, pp. 1801
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW LETTERS
ISSN journal
0031-9007 → ACNP
Volume
8711
Issue
11
Year of publication
2001
Database
ISI
SICI code
0031-9007(20010910)8711:11<1801:OOCSB->2.0.ZU;2-Z
Abstract
We report observations of the Cabibbo suppressed decays B --> (DK-)-K-(*) u sing a 10.4 fb(-1) data sample accumulated at the Y(4S) resonance with the Belle detector at the KEKB e(+)e(-) storage ring. We find that the ratios o f Cabibbo suppressed to Cabibbo favored branching fractions are B(B- --> (D K-)-K-0)/B(B- --> D(0)pi (-)) = 0.079 +/- 0.009 +/- 0.006, B((B) over bar0 --> D+K-)/B((B) over bar0 --> D(+)pi (-)) = 0.068 +/- 0.015 +/- 0.007. B(B- --> (DK)-K-*0-)/B(B- --> D(*0)pi (-)) = 0.078 +/- 0.019 +/- 0.009, and B(( B) over bar (0) --> D*+K-)/B((B) over bar (0) --> D(*+)pi (-)) = 0.074 +/- 0.015 +/- 0.006. These are the first observations of the B --> D+K-. (DK-)- K-*0, and D*+K- decay processes.