Study ofD**production and light hadronic states in theB¯0→D*+ωπ−decay

D. Matvienko, A. Kuzmin,S. Eidelman, A. Abdesselam, I. Adachi,H. Aihara,S. Al Said, K. Arinstein, D. M. Asner,V. Aulchenko,T. Aushev,R. Ayad, V. Babu,I. Badhrees, S. Bahinipati, A. M. Bakich,V. Bansal, V. Bhardwaj, B. Bhuyan, J. Biswal,A. Bobrov, A. Bondar,G. Bonvicini, A. Bozek,M. Bračko, T. E. Browder,D. Červenkov, A. Chen, B. G. Cheon,K. Chilikin, R. Chistov,K. Cho,V. Chobanova, S. -K. Choi, Y. Choi, D. Cinabro,J. Dalseno, J. Dingfelder,Z. Doležal,Z. Drásal, A. Drutskoy,D. Dutta, D. Epifanov,H. Farhat,J. E. Fast,T. Ferber, B. G. Fulsom, V. Gaur, N. Gabyshev, A. Garmash, D. Getzkow, R. Gillard,Y. M. Goh, P. Goldenzweig,B. Golob,T. Hara, K. Hayasaka, H. Hayashii,X. H. He, W. -S. Hou,T. Iijima,G. Inguglia,A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, D. Joffe, K. K. Joo, T. Julius,T. Kawasaki, D. Y. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, S. H. Kim, Y. J. Kim, B. R. Ko, P. Kodyš, S. Korpar,P. Krokovny, R. Kumar, J. S. Lange,D. H. Lee,L. Li Gioi,J. Libby,D. Liventsev, K. Miyabayashi, H. Miyata,R. Mizuk, G. B. Mohanty, A. Moll,R. Mussa, E. Nakano,M. Nakao,T. Nanut,M. Nayak,N. K. Nisar,S. Nishida,S. Ogawa, G. Pakhlova, B. Pal, C. W. Park,H. Park,T. K. Pedlar, L. Pesántez, R. Pestotnik, M. Petrič,L. E. Piilonen, C. Pulvermacher, E. Ribežl,M. Ritter,A. Rostomyan, Y. Sakai,S. Sandilya, L. Santelj, T. Sanuki,O. Schneider, G. Schnell,C. Schwanda, K. Senyo,O. Seon,M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen,T. -A. Shibata, J. -G. Shiu, B. Shwartz, A. Sibidanov,F. Simon, Y. -S. Sohn, A. Sokolov, M. Starič, M. Steder, M. Sumihama, K. Sumisawa,U. Tamponi,K. Tanida, Y. Teramoto, M. Uchida, S. Uehara, Y. Unno,S. Uno,P. Urquijo, Y. Usov,C. Van Hulse, P. Vanhoefer, G. Varner,A. Vinokurova,V. Vorobyev,M. N. Wagner, C. H. Wang,M. -Z. Wang, P. Wang, Y. Watanabe, K. M. Williams, E. Won, H. Yamamoto, S. Yashchenko, Y. Yook, Z. P. Zhang,V. Zhilich,V. Zhulanov, A. Zupanc

Physical Review D（2015）

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摘要

We report on the first observations of (B) over bar (0) -> D-1 (2430)(0)omega, (B) over bar (0) -> D-1 (2420)(0)omega, and (B) over bar (0) -> D-2* (2460)(0)omega decays. The (B) over bar (0) -> D*(+) rho(1450)(-) decay is also observed. The branching fraction measurements are based on (771.6 +/- 10.6) 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. The fractions of longitudinal polarization of the D** states as well as partial wave fractions of the D-1 (2430)(0) are obtained. We also set a 90% confidence level upper limit for the product of branching fractions of B((B) over bar (0) -> D*(+)b(1) (1235)(-)) x B(b(1) (1235)(-) -> omega pi(-)). The measurements show evidence of nontrivial final-state interaction phases for the rho-meson-like amplitudes.

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