Analysis of the decay mode D0 → K-μ+νμ

P. L. Frabetti, H. W.K. Cheung, J. P. Cumalat, C. Dallapiccola, J. F. Ginkel, S. V. Greene, W. E. Johns, M. S. Nehring, J. N. Butler, S. Cihangir, I. Gaines, P. H. Garbincius, L. Garren, S. A. Gourlay, D. J. Harding, P. Kasper, A. Kreymer, P. Lebrun, S. Shukla, M. VittoneS. Bianco, F. L. Fabbri, S. Sarwar, A. Zallo, R. Culbertson, R. W. Gardner, R. Greene, J. Wiss, G. Alimonti, G. Bellini, M. Boschini, D. Brambilla, B. Caccianiga, L. Cinquini, M. Di Corato, M. Giammarchi, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, E. Meroni, L. Moroni, D. Pedrini, L. Perasso, F. Prelz, A. Sala, S. Sala, D. Torretta, D. Buchholz, D. Claes, B. Gobbi, B. O'Reilly, J. M. Bishop, N. M. Cason, C. J. Kennedy, G. N. Kim, T. F. Lin, D. L. Puseljic, R. C. Ruchti, W. D. Shephard, J. A. Swiatek, Z. Y. Wu, V. Arena, G. Boca, C. Castoldi, G. Gianini, S. P. Ratti, C. Riccardi, L. Viola, P. Vitulo, A. Lopez, G. P. Grim, V. S. Paolone, P. M. Yager, J. R. Wilson, P. D. Sheldon, F. Davenport, G. R. Blackett, K. Danyo, M. Pisharody, T. Handler, B. G. Cheon, J. S. Kang, K. Y. Kim

Research output: Contribution to journalArticlepeer-review


Studies of the decay D0 → K-μ+νμ are reported by Fermilab photoproduction experiment E687. The ratio BR(D0 → K-μ+νμ) BR(D0 → K-π+) is determined to be 0.852 ± 0.034 (statistical) ± 0.028 (systematic). Using this result and an isospin argument we infer the ratio BR(D0 → K*-μ+νμ) BR(D0 → K-μ+νμ) = 0.62 ± 0.07 ± 0.09. The pole mass from the single pole form factor is measured to be Mpole = 1.87-0.08-0.06+0.11+0.07 GeV/c2. Using Mpole and BR(D0 → K-μ+νμ) BR(D0 → K-π+), we calculate |f + (0)| = 0.71 ± 0.03 ± 0.03. We also measure the ratio f - (0) f + (0) = -1.3-3.4+3.6 ± 0.6.

Original languageEnglish (US)
Pages (from-to)127-136
Number of pages10
JournalPhysics Letters B
Issue number2
StatePublished - Dec 14 1995
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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