Measurement of branching fractions for B → χc1(2)K (K*) at Belle

Soni, N. ; Abe, K. ; Abe, K. ; Adachi, I. ; Aihara, H. ; Arinstein, K. ; Asano, Y. ; Aulchenko, V. ; Aushev, T. ; Bakich, A.M. ; Barberio, E. ; Bedny, I. ; Bitenc, U. ; Bizjak, I. ; Blyth, S. ; Bondar, A. ; Bračko, M. ; Browder, T.E. ; Chang, P. ; Chao, Y. ; Chen, A. ; Chen, K.-F. ; Cheon, B.G. ; Chistov, R. ; Choi, S.-K. ; Choi, Y. ; Chuvikov, A. ; Dalseno, J. ; Danilov, M. ; Dash, M. ; Dong, L.Y. ; Eidelman, S. ; Enari, Y. ; Epifanov, D. ; Fratina, S. ; Gabyshev, N. ; Garmash, A. ; Gershon, T. ; Go, A. ; Gokhroo, G. ; Golob, B. ; Gorišek, A. ; Haba, J. ; Hara, T. ; Hayasaka, K. ; Hayashii, H. ; Hazumi, M. ; Hinz, L. ; Hokuue, T. ; Hoshi, Y. ; Hou, S. ; Hou, W.-S. ; Iijima, T. ; Ikado, K. ; Imoto, A. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Kang, J.H. ; Kang, J.S. ; Kapusta, P. ; Katayama, N. ; Kawasaki, T. ; Khan, H.R. ; Kichimi, H. ; Kim, H.J. ; Kim, S.M. ; Korpar, S. ; Križan, P. ; Krokovny, P. ; Kulasiri, R. ; Kuo, C.C. ; Kuzmin, A. ; Kwon, Y.-J. ; Lesiak, T. ; Lin, S.-W. ; Liventsev, D. ; Majumder, G. ; Mandl, F. ; Matsumoto, T. ; Mikami, Y. ; Mitaroff, W. ; Miyabayashi, K. ; Miyake, H. ; Miyata, H. ; Miyazaki, Y. ; Mizuk, R. ; Mohapatra, D. ; Nagamine, T. ; Natkaniec, Z. ; Nishida, S. ; Nitoh, O. ; Ogawa, S. ; Ohshima, T. ; Okabe, T. ; Okuno, S. ; Olsen, S.L. ; Onuki, Y. ; Ostrowicz, W. ; Ozaki, H. ; Pakhlov, P. ; Park, C.W. ; Pestotnik, R. ; Peters, M. ; Piilonen, L.E. ; Poluektov, A. ; Sakai, Y. ; Sato, N. ; Schietinger, T. ; Schneider, O. ; Sevior, M.E. ; Shibuya, H. ; Shwartz, B. ; Sidorov, V. ; Singh, J.B. ; Somov, A. ; Stanič, S. ; Starič, M. ; Sumiyoshi, T. ; Suzuki, S. ; Suzuki, S.Y. ; Takasaki, F. ; Tamai, K. ; Tamura, N. ; Tanaka, M. ; Taylor, G.N. ; Teramoto, Y. ; Tian, X.C. ; Tsuboyama, T. ; Tsukamoto, T. ; Uehara, S. ; Ueno, K. ; Uglov, T. ; Uno, S. ; Urquijo, P. ; Varner, G. ; Villa, S. ; Wang, C.C. ; Wang, C.H. ; Watanabe, Y. ; Won, E. ; Xie, Q.L. ; Yamaguchi, A. ; Yamashita, Y. ; Yamauchi, M. ; Ying, J. ; Yuan, Y. ; Zhang, C.C. ; Zhang, L.M. ; Zhang, Z.P. ; Zhilich, V.

We have measured the branching fractions for the exclusive decay modes B→χc1(2)K(K*) using a 140 fb-1 data sample collected by the Belle detector at the KEKB asymmetric-energy e +e- collider. The measured branching fractions for B +→χc1K+, B0→χ c1K0, B0→χc1K* 0 and B+→χc1K*+ decay modes are (4.5±0.2±0.5)×10-4, (3.5±0.3±0.5)×10-4, (3.1±0.3±0.7) ×10-4 and (4.1±0.6±0.9)×10-4, respectively, where the first error is statistical and the second error is systematic. We do not observe statistically significant signals for the B→χc2K(K*) decay modes and set upper limits at the 90% confidence level. We also study the helicity distribution for B→χc1K* decay mode and show that the longitudinal polarization component is dominant. © 2006 Elsevier B.V. All rights reserved.


Published in:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 634, 2-3, 155-164
Year:
2006
ISSN:
03702693
Other identifiers:
Scopus: 2-s2.0-33244489388
View record in Web of Science
Laboratories:




 Record created 2010-11-05, last modified 2019-12-05


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