Inclusive and exclusive measurements of B decays to chi(c1) and chi(c2) at Belle

Bhardwaj, V. ; Miyabayashi, K. ; Panzenboeck, E. ; Trabelsi, K. ; Frey, A. ; Abdesselam, A. ; Adachi, I. ; Aihara, H. ; Al Said, S. ; Arinstein, K. ; Asner, D. M. ; Atmacan, H. ; Aulchenko, V. ; Aushev, T. ; Ayad, R. ; Babu, V. ; Badhrees, I. ; Bahinipati, S. ; Bakich, A. M. ; Bala, A. ; Bansal, V. ; Barberio, E. ; Bhuyan, B. ; Biswal, J. ; Bobrov, A. ; Bondar, A. ; Bozek, A. ; Bracko, M. ; Browder, T. E. ; Cervenkov, D. ; Chekelian, V. ; Chen, A. ; Cheon, B. G. ; Chilikin, K. ; Chistov, R. ; Cho, K. ; Chobanova, V. ; Choi, S-K. ; Choi, Y. ; Cinabro, D. ; Dalseno, J. ; Danilov, M. ; Dolezal, Z. ; Dutta, D. ; Eidelman, S. ; Farhat, H. ; Fast, J. E. ; Ferber, T. ; Frost, O. ; Fulsom, B. G. ; Gaur, V. ; Gabyshev, N. ; Ganguly, S. ; Garmash, A. ; Gillard, R. ; Glattauer, R. ; Goh, Y. M. ; Goldenzweig, P. ; Golob, B. ; Greenwald, D. ; Haba, J. ; Hamer, P. ; Hayasaka, K. ; Hayashii, H. ; He, X. H. ; Hou, W-S. ; Iijima, T. ; Inami, K. ; Ishikawa, A. ; Itoh, R. ; Iwasaki, Y. ; Jaegle, I. ; Joffe, D. ; Joo, K. K. ; Julius, T. ; Kato, E. ; Katrenko, P. ; Kawasaki, T. ; Kiesling, C. ; Kim, D. Y. ; Kim, J. B. ; Kim, K. T. ; Kim, M. J. ; Kim, S. H. ; Kim, Y. J. ; Kinoshita, K. ; Ko, B. R. ; Kobayashi, N. ; Kodys, P. ; Korpar, S. ; Krizan, P. ; Krokovny, P. ; Kuhr, T. ; Kumar, R. ; Kumita, T. ; Kuzmin, A. ; Kwon, Y-J. ; Lee, I. S. ; Li, C. ; Li, Y. ; Gioi, L. Li ; Libby, J. ; Liventsev, D. ; Loos, A. ; Lukin, P. ; Masuda, M. ; Matvienko, D. ; Miyata, H. ; Mizuk, R. ; Mohanty, G. B. ; Mohanty, S. ; Moll, A. ; Moon, H. K. ; Mussa, R. ; Nakano, E. ; Nakao, M. ; Nanut, T. ; Natkaniec, Z. ; Nayak, M. ; Nisar, N. K. ; Nishida, S. ; Ogawa, S. ; Okuno, S. ; Pakhlova, G. ; Pal, B. ; Park, C. W. ; Park, H. ; Pedlar, T. K. ; Pestotnik, R. ; Petric, M. ; Piilonen, L. E. ; Pulvermacher, C. ; Purohit, M. V. ; Rauch, J. ; Ribezl, E. ; Ritter, M. ; Rostomyan, A. ; Sahoo, H. ; Sakai, Y. ; Sandilya, S. ; Santelj, L. ; Sanuki, T. ; Sato, Y. ; Savinov, V. ; Schneider, O. ; Schnell, G. ; Schwanda, C. ; Seino, Y. ; Semmler, D. ; Senyo, K. ; Seon, O. ; Sevior, M. E. ; Shebalin, V. ; Shen, C. P. ; Shibata, T-A. ; Shiu, J-G. ; Shwartz, B. ; Simon, F. ; Singh, J. B. ; Sohn, Y-S. ; Sokolov, A. ; Solovieva, E. ; Staric, M. ; Stypula, J. ; Sumihama, M. ; Sumiyoshi, T. ; Tamponi, U. ; Tanida, K. ; Teramoto, Y. ; Uchida, M. ; Uehara, S. ; Uglov, T. ; Unno, Y. ; Uno, S. ; Urquijo, P. ; Usov, Y. ; Van Hulse, C. ; Vanhoefer, P. ; Varner, G. ; Vinokurova, A. ; Vorobyev, V. ; Wang, C. H. ; Wang, M-Z. ; Wang, P. ; Wang, X. L. ; Watanabe, M. ; Watanabe, Y. ; Wehle, S. ; Won, E. ; Yamaoka, J. ; Yashchenko, S. ; Ye, H. ; Yook, Y. ; Yuan, C. Z. ; Yusa, Y. ; Zhang, Z. P. ; Zhilich, V. ; Zhulanov, V. ; Zupanc, A. ; Belle Collaboration

We report inclusive and exclusive measurements for chi(c1) and chi(c2) production in B decays. We measure B(B -> chi X-c1) = (3.03 +/- 0.05 (stat) +/- 0.24(syst)) x 10(-3) and B(B -> chi X-c2) = (0.70 +/- 0.06 (stat) +/- 0.10(syst)) x 10(-3). For the first time, chi(c2) production in exclusive B decays in the modes B-0 -> chi(c2) pi K--(+) and B-0 -> chi(c2) pi(-)pi K-+(+) has been observed, along with first evidence for the B-0 -> chi(c2) pi K--(s)0 decay mode. For chi c1 production, we report the first observation in the B+ -> chi(c1) pi(-)pi K-+(+), B-0 -> chi(c1) pi(-)pi K-+(s)0 and B-0 -> chi(c1) pi(-)pi K-+(+) decay modes. Using these decay modes, we observe a difference in the production mechanism of chi(c2) in comparison to chi(c1) in B decays. In addition, we report searches for X(3872) and chi(c1) (2P) in the B+ -> (chi(c1) pi(+)pi(-))K+ decay mode. The reported results use 772 x 10(6) B (B) over bar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.


Published in:
Physical Review D, 93, 5, 052016
Year:
2016
Publisher:
College Pk, Amer Physical Soc
ISSN:
2470-0010
Laboratories:




 Record created 2016-07-19, last modified 2018-12-03


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