Artigo Acesso aberto

Study of three-body charmless B decays

2002; American Physical Society; Volume: 65; Issue: 9 Linguagem: Inglês

10.1103/physrevd.65.092005

ISSN

1538-4500

Autores

A. Garmash, K. Abe, K. Abe, K. Abe, K. Abe, I. Adachi, H. Aihara, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, Y. Ban, E. Banaś, S. Behari, P. K. Behera, A. Bondar, A. Bożek, M. Bračko, T. E. Browder, B. C. K. Casey, P. Chang, Yi Chao, B. G. Cheon, R. Chistov, S. K. Choi, Yeon-Sun Choi, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, F. Fang, H. Fujii, C. Fukunaga, M. Fukushima, N. Gabyshev, T. J. Gershon, A. Gordon, K. Gotow, R. Guo, J. Haba, H. Hamasaki, F. Handa, K. Hara, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, E.M. Heenan, I. Higuchi, T. Higuchi, T. Hojo, T. Hokuue, Y. Hoshi, K. Hoshina, S. Hou, W.-S. Hou, Hsuan‐Cheng Huang, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, M. Iwasaki, D. J. Jackson, Hyejin Jang, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, H. Kawai, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, S. K. Kim, T. H. Kim, K. Kinoshita, H. Konishi, S. Korpar, P. Križan, P. Krokovny, R. Kulasiri, S. Kumar, A. Kuzmin, Y.-J. Kwon, J. S. Lange, G. Leder, S. H. Lee, A. Limosani, D. Liventsev, R.-S. Lu, J. MacNaughton, F. Mandl, D. Marlow, Shinnosuke Matsumoto, Tadashi Matsumoto, Y. Mikami, H. Miyake, H. Miyata, G. R. Moloney, G. F. Moorhead, Shigeki Mori, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, Y. Nagashima, T. Nakadaira, E. Nakano, M. Nakao, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, F. Ohno, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Pałka, C. S. Park, C. W. Park, K. S. Park, L. S. Peak, Jean-Pierre Perroud, M. Peters, L. E. Piilonen, K. Rybicki, J. Ryuko, H. Sagawa, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, S. Semenov, K. Senyo, M. E. Sevior, H. Shibuya, J. B. Singh, S. Stanič, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, Sachiko Suzuki, S. K. Swain, Tohru Takahashi, F. Takasaki, M. Takita, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, M. Tomoto, T. Tomura, S.N. Tovey, K. Trabelsi, T. Tsukamoto, S. Uehara, K. Ueno, S. Uno, Y. Ushiroda, C. C. Wang, C. H. Wang, J. G. Wang, M.-Z. Wang, Y. Watanabe, E. Won, B. Yabsley, Y. Yamada, M. Yamaga⋆, Akira Yamaguchi, Y. Yamashita, M. Yamauchi, M. Yokoyama, Y. Yuan, C. C. Zhang, J. Zhang, Y. Zheng, V. Zhilich, D. Žontar,

Tópico(s)

High-Energy Particle Collisions Research

Resumo

We report on a study of three-body charmless decays B+→K+h+h− based on a 29.1fb−1 data sample collected with the Belle detector. With no assumptions on the intermediate mechanisms, the following three-body branching fractions have been measured for the first time: B(B+→K+π−π+)=(55.6±5.8±7.7)×10−6 and B(B+→K+K−K+)=(35.3±3.7±4.5)×10−6. We present the first observation of the decay B+→f0(980)K+ with a branching fraction product of B(B+→f0(980)K+)×B(f0(980)→π+π−)=(9.6+2.5+1.5+3.4−2.3−1.5−0.8)×10−6. This is the first reported example of a B meson decay to a scalar pseudoscalar final state. We also report the first observation of B+→K*(892)0π+ decay with a branching fraction of B(B+→K*(892)0π+)=(19.4+4.2+2.1+3.5−3.9−2.1−6.8)×10−6. Received 27 December 2001DOI:https://doi.org/10.1103/PhysRevD.65.092005©2002 American Physical Society

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