Observation of D+(s)K- and evidence for D+(s)pi- final states in neutral B decays.

@article{Krokovny2002ObservationOD,
  title={Observation of D+(s)K- and evidence for D+(s)pi- final states in neutral B decays.},
  author={Pavel Krokovny and K. Schw Abe and Takuro Abe and Ichiro Adachi and Byoung Sup Ahn and Hidehiko Aihara and Mai Akatsu and Yasuhiro Asano and Tsukasa Aso and V. Aulchenko and T. Aushev and A. M. Bakich and Yue Yuan Ban and E. Christopher Banas and A. Bay and Igor V. Bedny and Pradipta Kumar Behera and Igor Bizjak and Alexander V. Bondar and Alexandr Bo{\vz}ek and M. Bracko and Jolanta Brodzicka and Thomas Earl Browder and Brendan Cameron Kieran Casey and Ping Fan Chang and Yan Yan Chao and K-F Chen and Byeong Geun Cheon and Ruslan Chistov and S-K Choi and Y K Choi and Maksim Danilov and Liaoyuan Dong and Alexey Drutskoy and Semen Eidelman and V. Eiges and Yuji Enari and Craig Warwick Everton and Feiyu Fang and Ch. Fukunaga and Nickolay Gabyshev and Alexei Garmash and Timothy Gershon and B. Verdnik Golob and Alfred B. Gordon and Rong Guo and John Haba and K. Hanagaki and Fumitaka Handa and Yunosuke Harada and Hisaki Hayashii and Masashi Hazumi and Eric M. Heenan and Thoru Higuchi and Lutz Hinz and Tomohiko Hojo and T. Hokuue and L. E. Piilonen and W S Hou and H C Huang and Tomoharu Igaki and Takayoshi Iijima and Katsuaki Inami and Ayumu Ishikawa and Hirokazu Ishino and Ryusuke Itoh and Hirofumi Iwasaki and Hye kyeong Jang and Junji Kaneko and J. H. Kang and Juehyung Kang and Nobutaka Katayama and Hiroshi Kawai and Yoichi Kawakami and Naritosi Kawamura and Takeo Kawasaki and A. Vinokurova and D W Kim and Heejong Kim and Hyunwoo Kim and H O Kim and Shoon Kyung Kim and Kodzue Kinoshita and Satoru Kobayashi and Samo Korpar and Peter Kriz̆an and Ranmali De Silva Kulasiri and S. Vinoth Kumar and Andrey I. Kuzmin and Y J Kwon and Jens S{\"o}ren Lange and Gilah. Leder and Soo Heyong Lee and Ji Li and Antonio Limosani and Dmitri Liventsev and R. Lu and Jane Macnaughton and Gobinda Majumder and Felix Mandl and Daniel Marlow and Takeaki Matsuishi and Shiniji Matsumoto and Takehito Matsumoto and Winfried A. Mitaroff and Kenkichi Miyabayashi and Yoshitugu Miyabayashi and Hideaki Miyake and Hiroaki Miyata and Gary R Moloney and Takaharu Mori and Akira Murakami and Tomomasa Nagamine and Yuichi Nagasaka and Takeshi Nakadaira and Eiichi Nakano and Mitsuhiro Nakao and Hideo Nakazawa and Jin Won Nam and Zbigniew Natkaniec and Keiko Neichi and Shin'ya Nishida and Osamu Nitoh and Tasuku Nozaki and Sadahide Ogawa and Tsubasa Ohshima and Toshihiro Okabe and Stephan Lars Olsen and Yoshichika Ōnuki and Waclaw Ostrowicz and Hiroshi Ozaki and Pavel Pakhlov and Cheolmin Park and Hee Kwon Park and J P Perroud and M. Peters and Frederic Jean Ronga and Norman Root and Krystian Rybicki and Hiroyuki Sagawa and Suguru Saitoh and Yosuke Sakai and Hirokazu Sakamoto and Monalisa Satapathy and Asish Satpathy and Otto Schneider and Christoph Schwanda and Sergey Semenov and Katsumi Senyo and Hiromitsu Shibuya and Boris A. Shwartz and Viktor Viktorovich Moscow Sidorov and J. Bani Singh and Suzana Stani{\'c} and Martin Stari{\vc} and A Ellen Sugi and Asako Sugiyama and Kazutaka Sumisawa and Takayuki Sumiyoshi and Koshiro Suzuki and Shota Suzuki and Sanjay Kumar Swain and Takashi Takahashi and Fumihiko Takasaki and Ken-ichi Tamai and Naoyuki Tamura and Jun Tanaka and Masayuki Tanaka and Geoffrey N. Taylor and Yoshihiko Teramoto and Shinji Tokuda and Tomonobu Tomura and Kaled Trabelsi and Toru Tsuboyama and Tadayuki Tsukamoto and Shigeo Uehara and Ken-ichi Ueno and Yasushi Unno and Shoji Uno and Yuichi Ushiroda and Gary Varner and Kevin Varvell and Chester C-C Wang and Charles H.-T. Wang and Jian guo Wang and M-Z Wang and Yoshinori Watanabe and Eunil Won and Bruce Yabsley and Yasuhiko Yamada and Akira Yamaguchi and Yoshifumi Yamashita and Masatoshi Yamauchi and Hiroki Yanai and Jun Yashima and Yihui Yuan and Yasunori Yusa and C. Zhang C. Zhang and Jing Zhang and Zhaohui Zhang and Yuanlei Zheng and V. V. Zhilich and Daniel Zontar},
  journal={Physical review letters},
  year={2002},
  volume={89 23},
  pages={
          231804
        }
}
We report the first observation of a B meson decay that is not accessible by a direct spectator process. The channel B(0)-->D(+)(s)K- is found in a sample of 85 x 10(6) BB; events, collected with the Belle detector at KEKB, with a branching fraction B(B(0)-->D(+)(s)K-)=(4.6(+1.2)(-1.1)+/-1.3) x 10(-5). We also obtain evidence for the B0-->D(+)(s)pi(-) decay with branching fraction B(B0-->D(+)(s)pi(-))=(2.4(+1.0)(-0.8)+/-0.7) x 10(-5). This value may be used to extract a model-dependent value of… CONTINUE READING
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