Measurement of Γ( D0 → K−μ+ν)/ Γ( D0→ μ+X using a [formula omitted] tag

T. Fujii ,S. Willis ,S. K. Kim ,T. Abe,P. Skubic,Mitsuhiro Nakamura ,M. Kobayashi ,B. Baller ,S. D. Chang ,R. Lipton ,K. Hoshino,B. G. Cheon ,S. Kuramata ,S. G. Frederiksen ,M. Teranaka,M. A. Nomura ,S. Ogawa,T. Tominaga ,H. Tajima,Y. Isokane,T. Shin ,K. Nakamura,S. H. Chung ,J. H. Cho ,K. Moriyama,M. Y. Pac ,M. Kazuno,K. Niwa ,J. Wilcox ,Yuya Nakamura ,T. Okusawa,Randy R. Reibel ,G. Y. Lim ,O. Kusumoto,J. C. Lee ,H. Yuuki,T. I. Kim ,Y. Tsuzuki,B. Lundberg ,K. S. Sim ,N. R. Stanton ,K. Taruma,W. R. Nichols ,I. T. Lim ,A. Freyberger ,S. Nakanishi,Shuji Watanabe ,M. Aryal,G. Kalbfleisch ,Yoshiki Takahashi ,J. Volk ,J. Dunlea ,M. S. Park ,N. Ushida,C. O. Kim ,N. Yasuda ,K.s. Chung ,A. Mokhtarani,J. Yokota,Y. Zhang,I. Tezuka,G. Fujioka,Jong-Kwan Woo ,T. Yoshida ,Momoko Yamaki ,J. Song ,S. Yoshida,R. A. Sidwell ,S. Y. Bahk ,Y. Tsuneoka,H. Okabe,Douglas M. Potter ,I. G. Park ,Chiaki Yokoyama ,K. Niu,H. Shibuya,H. I. Jang ,T. Y. Kim ,T. Hara,Hirokazu Kitamura ,A. Gauthier,D. Gibaut ,Toshio Koya ,S. Nam ,C. Zhang ,K. Fujiwara ,D. C. Kim ,S. B. Lee ,E. Niu,K. Y. Kim ,J. Russ ,N. W. Reay ,J. Y. Kim ,Masao Kamiya ,J. S. Kang ,M. Chikawa ,R. M. Edelstein ,G. Oleynik ,V. Paolone ,J. Snow ,C. S. Yoon ,Kimitaka Nakazawa ,Hiroshi Fukushima ,P. M. Yager ,R. J. Stefanski ,Y. Sato ,Hiroyuki Shibata ,S. Aoki ,K. Kodama ,M. Miyanishi

doi:10.1016/0370-2693(94)90579-7

Measurement of Γ( D0 → K−μ+ν)/ Γ( D0→ μ+X using a [formula omitted] tag

T. Fujii , S. Willis

https://doi.org/10.1016/0370-2693(94)90579-7

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Journal: Physics Letters B	Publication Date: Sep 1, 1994
Citations: 6

Affiliation: University of Oklahoma, Kobe University, Fermilab, Nagoya University, Korea University, The Ohio State University, Osaka City University, Toho University, Nagoya Institute of Technology, Okayama University, Chonnam National University, Kansas State University, University of California, Davis, Aichi University of Education, Carnegie Mellon University, Utsunomiya University

#Relative Branching Fraction #Branching Fraction + Show 7 more

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Abstract

The relative branching fraction R K = Γ( D 0 → K − μ + v)/ Γ( D 0 → μ − X) has been measured by Fermilab experiment E653, using D 0 mesons produced by 600 GeV π −. The semimuonic decay sample of 232 events was identified by the decay chain D ∗+ → D 0π +, D 0 → μ +h −X , where h is a hadron. The Kμv component was extracted from the joint distribution of these events in the D 0 decay variables M min and p Th. We find R K = 0.472 ± 0.051 (stat) ± 0.040 (sys), and use a world average of the D 0 → Klv branching fraction to obtain the D 0 inclusive semimuonic branching fraction B( D 0 → μ + X) = (7.67 ± 1.13)%.

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