Measurement Of The Branching Fraction For The Decay Gamma(4s) -> Gamma(1s)Pi(+) Pi(-)

A. Sokolov,M. Shapkin,H. Aihara,K. Arinstein,T. Aushev,A. M. Bakich,E. Barberio,A. Bay,K. Belous,V. Bhardwaj,A. Bondar,M. Bracko,T. E. Browder,M. -C. Chang,P. Chang,A. Chen,K. -F. Chen,B. G. Cheon,C. -C. Chiang,R. Chistov,I. -S. Cho,Y. Choi,M. Dash,A. Drutskoy,W. Dungel,S. Eidelman,D. Epifanov,N. Gabyshev,P. Goldenzweig,H. Ha,J. Haba,B. -Y. Han,H. Hayashii,M. Hazumi,Y. Horii,Y. Hoshi,W. -S. Hou,Y. B. Hsiung,H. J. Hyun,T. Iijima,K. Inami,A. Ishikawa,H. Ishino,Y. Iwasaki,N. J. Joshi,D. H. Kah,H. Kaji,J. H. Kang,H. Kawai,T. Kawasaki,H. Kichimi,H. J. Kim,H. O. Kim,S. K. Kim,Y. I. Kim,Y. J. Kim,K. Kinoshita,B. R. Ko,S. Korpar,P. Krizan,P. Krokovny,A. Kuzmin,Y. -J. Kwon,S. -H. Kyeong,J. S. Lange,M. J. Lee,S. E. Lee,T. Lesiak,J. Li,A. Limosani,S. -W. Lin,Y. Liu,D. Liventsev,R. Louvot,F. Mandl,A. Matyja,S. Mconie,H. Miyata,Y. Miyazaki,R. Mizuk,T. Mori,Y. Nagasaka,E. Nakano,M. Nakao,S. Nishida,O. Nitoh,S. Noguchi,S. Ogawa,T. Ohshima,S. Okuno,H. Ozaki,P. Pakhlov,G. Pakhlova,C. W. Park,H. Park,H. K. Park,K. S. Park,R. Pestotnik,L. E. Piilonen,A. Poluektov,H. Sahoo,Y. Sakai,O. Schneider,C. Schwanda,A. Sekiya,K. Senyo,M. E. Sevior,C. P. Shen,J. -G. Shiu,B. Shwartz,J. B. Singh,S. Stanic,M. Staric,T. Sumiyoshi,M. Tanaka,G. N. Taylor,Y. Teramoto,T. Tsuboyama,S. Uehara,T. Uglov,Y. Unno,S. Uno,Y. Usov,G. Varner,K. E. Varvell,K. Vervink,A. Vinokurova,C. H. Wang,M. -Z. Wang,P. Wang,X. L. Wang,Y. Watanabe,R. Wedd,E. Won,B. D. Yabsley,Y. Yamashita,C. Z. Yuan,Z. P. Zhang,V. Zhilich,V. Zhulanov,T. Zivko,A. Zupanc,O. Zyukova

PHYSICAL REVIEW D（2009）

引用 14|浏览4

暂无评分

摘要

We study transitions between Gamma states with the emission of charged pions using 604.6 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured product branching fraction is B(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) x B(Gamma(1S) -> mu(+)mu(-)) = (2.11 +/- 0.30(stat) +/- 0.14(sys)) x 10(-6) and the partial decay width is Gamma(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) = 1.75 +/- 0.25(stat) +/- 0.24(sys)) keV.

查看译文

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要