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Measurements of branching fractions for b -> K pi and b ->pi pi decays
Lin, SW; Chang, P; Abe, K; Abe, K; Adachi, I; Aihara, H; Anipko, D; Aulchenko, V; Aushev, T; Bahinipati, S; Bakich, AM; Barberio, E; Bedny, I; Bitenc, U; Bizjak, I; Blyth, S; Bondar, A; Bozek, A; Bracko, M; Browder, TE; Chang, MC; Chao, Y; Chen, A; Chen, KF; Chen, WT; Cheon, BG; Chistov, R; Choi, SK; Choi, Y; Choi, YK; Dalseno, J; Dash, M; Dragic, J; Drutskoy, A; Eidelman, S; Fratina, S; Gabyshev, N; Garmash, A; Go, A; Golob, B; Ha, H; Haba, J; Hara, T; Hayashii, H; Hazumi, M; Heffernan, D; Hokuue, T; Hoshi, Y; Hou, WS; Hsiung, YB; Iijima, T; Ikado, K; Imoto, A; Inami, K; Ishikawa, A; Ishino, H; Itoh, R; Iwasaki, M; Iwasaki, Y; Kaji, H; Kapusta, P; Kataoka, SU; Kawai, H; Kawasaki, T; Kichimi, H; Kim, YJ; Kinoshita, K; Korpar, S; Krizan, P; Krokovny, P; Kulasiri, R; Kumar, R; Kuzmin, A; Kwon, YJ; Lee, MJ; Lesiak, T; Liventsev, D; MacNaughton, J; Mandl, F; Matsumoto, T; McOnie, S; Medvedeva, T; Mitaroff, W; Miyake, H; Miyata, H; Miyazaki, Y; Moloney, GR; Nakano, E; Nakao, M; Nakazawa, H; Natkaniec, Z; Nishida, S; Nitoh, O; Ogawa, S; Ohshima, T; Okuno, S; Olsen, SL; Onuki, Y; Ozaki, H; Pakhlov, P; Pakhlova, G; Park, CW; Pestotnik, R; Piilonen, LE; Sahoo, H; Sakai, Y; Satoyama, N; Schietinger, T; Schneider, O; Schumann, J; Schwartz, AJ; Senyo, K; Sevior, ME; Shapkin, M; Shibuya, H; Shwartz, B; Singh, JB; Somov, A; Soni, N; Stanic, S; Staric, M; Stoeck, H; Sumisawa, K; Sumiyoshi, T; Suzuki, S; Suzuki, SY; Takasaki, F; Tamai, K; Tanaka, M; Taylor, GN; Teramoto, Y; Tian, XC; Tikhomirov, I; Tsukamoto, T; Uehara, S; Ueno, K; Unno, Y; Uno, S; Ushiroda, Y; Varner, G; Varvell, KE; Villa, S; Wang, CC; Wang, CH; Wang, MZ; Watanabe, Y; Wicht, J; Won, E; Xie, QL; Yabsley, BD; Yamaguchi, A; Yamashita, Y; Yamauchi, M; Yusa, Y; Zhang, CC; Zhang, ZP; Zupanc, A
2007
发表期刊PHYSICAL REVIEW LETTERS
卷号99期号:12页码:121601
通讯作者Natl Taiwan Univ, Dept Phys, Taipei, Taiwan ; Chiba Univ, Chiba, Japan ; Univ Cincinnati, Cincinnati, OH 45221 USA ; Fu Jen Catholic Univ, Dept Phys, Taipei, Taiwan ; Grad Univ Adv Studies, Hayama, Japan ; Gyeongsang Natl Univ, Chinju, South Korea ; Hanyang Univ, Seoul 133791, South Korea ; Univ Hawaii, Honolulu, HI 96822 USA ; KEK, Tsukuba, Ibaraki, Japan ; Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China ; Inst High Energy Phys, Vienna, Austria ; Inst High Energy Phys, Protvino, Russia ; Inst Theoret & Expt Phys, Moscow 117259, Russia ; Jozef Stefan Inst, Ljubljana, Slovenia ; Kanagawa Univ, Yokohama, Kanagawa, Japan ; Korea Univ, Seoul 136701, South Korea ; Ecole Polytech Fed Lausanne, Swiss Fed Inst Technol, CH-1015 Lausanne, Switzerland ; Univ Ljubljana, Ljubljana, Slovenia ; Univ Maribor, SLO-2000 Maribor, Slovenia ; Univ Melbourne, Parkville, Vic 3052, Australia ; Nagoya Univ, Nagoya, Aichi, Japan ; Nara Womens Univ, Nara 630, Japan ; Natl Cent Univ, Chungli 32054, Taiwan ; H Niewodniczanski Inst Nucl Phys, PL-31342 Krakow, Poland ; Nippon Dent Univ, Niigata, Japan ; Niigata Univ, Niigata, Japan ; Univ Nova Gorica, Nova Gorica, Slovenia ; Osaka City Univ, Osaka 558, Japan ; Osaka Univ, Osaka, Japan ; Panjab Univ, Chandigarh 160014, India ; Peking Univ, Beijing 100871, Peoples R China ; Princeton Univ, Princeton, NJ 08544 USA ; RIKEN BNL Res Ctr, Upton, NY 11973 USA ; Saga Univ, Saga 840, Japan ; Univ Sci & Technol China, Hefei 230026, Peoples R China ; Seoul Natl Univ, Seoul, South Korea ; Shinshu Univ, Nagano, Japan ; Sungkyunkwan Univ, Suwon, South Korea ; Univ Sydney, Sydney, NSW 2006, Australia ; Toho Univ, Funabashi, Chiba 274, Japan ; Tohoku Gakuin Univ, Tagajo, Miyagi, Japan ; Tohoku Univ, Sendai, Miyagi 980, Japan ; Univ Tokyo, Dept Phys, Tokyo 113, Japan ; Tokyo Inst Technol, Tokyo 152, Japan ; Tokyo Metropolitan Univ, Tokyo 158, Japan ; Tokyo Univ Agr & Technol, Tokyo, Japan ; Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA ; Yonsei Univ, Seoul 120749, South Korea ; Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia ; Budker Inst Nucl Phys, Novosibirsk 630090, Russia
摘要We report measurements of branching fractions for B -> K pi and B ->pi pi decays based on a data sample of 449x10(6) B (B) over bar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We also measure the ratios of partial widths for B -> K pi decays, namely R-c equivalent to 2 Gamma(B+-> K+pi(0))/Gamma(B+-> K-0 pi(+))=1.08 +/- 0.06 +/- 0.08 and R-n equivalent to Gamma(B-0 -> K+pi(-))/2 Gamma(B-0 -> K-0 pi(0))=1.08 +/- 0.08 +/- 0.08, where the first and the second errors are statistical and systematic, respectively. These ratios are sensitive to enhanced electroweak penguin contributions from new physics; the new measurements are, however, consistent with standard model expectations.
文章类型Article
学科领域Physics
DOI10.1103/PhysRevLett.99.121601
研究领域[WOS]Physics
URL查看原文
语种英语
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000249668000019
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被引频次:23[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240974
专题实验物理中心
作者单位中国科学院高能物理研究所
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Lin, SW,Chang, P,Abe, K,et al. Measurements of branching fractions for b -> K pi and b ->pi pi decays[J]. PHYSICAL REVIEW LETTERS,2007,99(12):121601.
APA Lin, SW.,Chang, P.,Abe, K.,Abe, K.,Adachi, I.,...&Zupanc, A.(2007).Measurements of branching fractions for b -> K pi and b ->pi pi decays.PHYSICAL REVIEW LETTERS,99(12),121601.
MLA Lin, SW,et al."Measurements of branching fractions for b -> K pi and b ->pi pi decays".PHYSICAL REVIEW LETTERS 99.12(2007):121601.
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