Measurement of B → DsKπ branching ratios

K. Abe,I. Adachi,Hiroaki Aihara,K. Arinstein,T. Aso,Vladimir M. Aulchenko,Tagir A Kh Aushev,T. Aziz,S. Bahinipati,A. M. Bakich,Vladislav Balagura, Y. Ban,Swagato Banerjee,Elisabetta L. Barberio, A. Bay,I. V. Bedny,K. S. Belous,V. Bhardwaj,Urban Bitenc,S. C. Blyth,Alex E. Bondar,Andrzej Bozek,M. Bracko,Jolanta Brodzicka,Thomas E. Browder,M. C. Chang,Pin Chang,Yuan Chào,A. Chen,Kaifeng Chen,Wanting Chen,Byunggu Cheon,Chaochien Chiang,R. Chistov,I. S. Cho,Sookyung Choi,Y. K. Choi,S. Cole,J. P. Dalseno,Michael V. Danilov,Aron C. Das,M. Dash,J. Dragic,A. Drutskoy,Simon I. Eidelman,D. Epifanov,Saša Fratina,H. Fujii,M. Fujikawa,N. Gabyshev,Alexei Yu Garmash,A. Go,G. Gokhroo,Pablo Goldenzweig,B. Golob,Matthias Große-Perdekamp,Hayg Guler,H. Ha,Junji Haba,K. Hara, T. Hara,Y. Hasegawa,Nicholas C. Hastings,K. Hayasaka,Hisaki Hayashii,M. Hazumi,Daniel M. Heffernan,T. Higuchi,Luc Hinz,H. Hoedlmoser,T. Hokuue,Y. Horii,Y. Hoshi,K. Hoshina,S. Hou,Weishu Hou,Y. B. Hsiung,Hyojung Hyun,Y. Igarashi, T. Iijima,K. Ikado,K. Inami,Akimasa Ishikawa,Hirokazu Ishino,R. Itoh,M. Iwabuchi,Masahiko Iwasaki, Y. Iwasaki,C. Jacoby,Neha J. Joshi,M. Kaga,Dongha Kah,H. Kaji,S. Kajiwara,Hidekazu Kakuno,Juhwan Kang,Piotr J. Kapusta,S. U. Kataoka,N. Katayama,Hideyuki Kawai,T. Kawasaki,A. Kibayashi,Hiromichi Kichimi, Hongju Kim, Hyunok Kim, J. H. Kim,Sunkee Kim,Youngjin Kim,K. Kinoshita,Samo Korpar,Y. Kozakai,Peter Križan,Pavel P. Krokovny,Rajesh Kumar,E. Kurihara,A. Kusaka,A. S. Kuzmin,Youngjoon Kwon,Jens Sören Lange,Garth D. Leder,J. Lee,J. S. Lee,Moonjoo Lee,S. E. Lee,Tadeusz Lesiak,J. Li, A. Limosani,Sunwen Lin,Y. Liu,D. Liventsev,Jimmy N. Macnaughton, G. Majumder,Franz Mandl, , T. Matsumura,Adam Tomasz Matyja,S. McOnie, T. Medvedeva,Y. Mikami,Winfried A. Mitaroff,Kenkichi Miyabayashi,H. Miyake,H. Miyata,Y. Miyazaki,Roman V. Mizuk,Glenn R. Moloney,James A. Mueller,T. Moi,A. Murakami,Tadashi Nagamine, Y. Nagasaka,Yu Nakahama,Ikuo Nakamura,E. Nakano, M. Nakao, H. Nakayama,H. Nakazawa,Z. Natkaniec,Kazushi Neichi,S. Nishida,K. Nishimura,Yoji Nishio,Isao Nishizawa,O. Nitoh,S. Noguchi,T. Nozaki,A. Ogawa,S. Ogawa, T. Ohshima,S. Okuno,Stephen Lars Olsen,S. Ono,W. Ostrowicz,H. Ozaki,P. N. Pakhlov,G. Pakhlova,H. Palka,C. W. Park, H. Park,Kwangsun Park,N. Parslow,L. S. Peak,Manfred Pernicka,Rok Pestotnik,Matthias G. Peters,Leo E. Piilonen,A. Poluektov,Jamal Rorie,Maria Róz̀anśka,Himansu Sahoo,Y. Sakai,H. Sakamoto,H. Sakaue,Tapas R. Sarangi,N. Satoyama,K. Sayeed,Thomas Schietinger,Olivier Schneider,Peter Schönmeier,J. Schümann,C. Schwanda,A. J. Schwartz,Ralf Seidl,A. Sekiya,K. Senyo,M. E. Sevior,L. Shang,M. M. Shapkin,Chengping Shen,H. Shibuya,S. Shinomiya,Jingge Shiu,B. Shwartz,Jaivir B. Singh,Anatoli A. Sokolov,Elena N. Solovieva,A. M. Somov,Samo Stanič,Marko Starič,J. Stypula,A. Sugiyama,K. Sumisawa,T. Sumiyoshi,Sohyamagata Suzuki,S. Y. Suzuki,O. Tajima,Fumihiko Takasaki,K. Tamai,N. Tamura,Manobu Tanaka,N. Taniguchi,Geoffrey N. Taylor,Y. Teramoto,I. N. Tikhomirov,Karim Trabelsi,Y. F. Tse,Toru Tsuboyama,K. Uchida,Y. Uchida,S. Uehara,Koji Ueno,T. Uglov, Y. Unno,S. Uno,Phillip Urquijo,Yutaka Ushiroda,Yu V. Usov,Gary S. Varner,Kevin E. Varvell,Kim Vervink,Stefano Villa,Anna Vinokurova,Chiachi Wang,Chunghsiang Wang, J. Wang,M. Z. Wang,P. Wang,Xiaolong Wang,M. Watanabe, Y. Watanabe,R. Wedd,J. Wicht,Laurenz Widhalm,Jaroslaw Wiechczynski,E. Won,Bruce D. Yabsley,A. Yamaguchi,Hitoshi Yamamoto,Mio Yamaoka, Y. Yamashita,M. Yamauchi,Chao Yuan,Y. Yusa,C. C. Zhang,Liming Zhang,Ziping Zhang,V. Zhilich,Vladimir V. Zhulanov, A. Zupanc,N. Zwahlen

23rd International Symposium on Lepton-Photon Interactions at High Energy, LP 2007（2007）

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摘要

We report a measurement of the exclusive B+ meson decay to the final state D-s K+π+ using 520 × 106B ̄B pairs collected near the γ(4S) resonance, with the Belle detector at the KEKB asymmetric-energy e+e- collider. Using the D-S → Ø- decay mode to reconstruct D- s mesons, we obtain the branching fraction B(B+ → D-s K+π+) = (1.77+0.12-0.12(stat)±0.16(syst) ±0.23(B))×10-4. We also present preliminary results of a study of the two-body DsK, Dsπ and Kπ subsystems observed in this final state.

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