Phys. Rev. Lett.
65,
1531–1534
(1990)
Determination of B(Ds+→φπ+) via observation of Ds+→φl+ν
J. Alexander et al.
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J. Alexander, M. Artuso, C. Bebek, K. Berkelman, T. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, G. Crawford, J. W. DeWire, P. S. Drell, R. Ehrlich, R. S. Galik, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, N. B. Mistry, J. Mueller, S. Nandi, E. Nordberg, C. O’Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, Y. Zhu, R. Ammar, P. Baringer, D. Coppage, P. Haas, M. Kelly, N. Kwak, Ha Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, R. Fulton, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, P. Wilson, D. Bortoletto, W.-Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, W.-M. Yao, K. Sparks, E. H. Thorndike, C.-H. Wang, M. S. Alam, I. J. Kim, W. C. Li, X. C. Lou, V. Romero, C. R. Sun, P.-N. Wang, M. M. Zoeller, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, M. D. Mestayer, G. C. Moneti, Y. Rozen, P. Rubin, V. Sharma, T. Skwarnicki, M. Thulasidas, G. Zhu, S. E. Csorna, and T. Letson
Cornell University, Ithaca, New York 14853 Ithaca College, Ithaca, New York 14850 University of Florida, Gainesville, Florida 32611 Harvard University, Cambridge, Massachusetts 02138 University of Kansas, Lawrence, Kansas 66045 University of Minnesota, Minneapolis, Minnesota 55455 Ohio State University, Columbus, Ohio 43210 Purdue University, West Lafayette, Indiana 47907 University of Rochester, Rochester, New York 14627 State University of New York at Albany, Albany, New York 12222 Syracuse University, Syracuse, New York 13244 Vanderbilt University, Nashville, Tennessee 37235
Received 28 June 1990; published in the issue dated 24 September 1990
Using the CLEO detector at the Cornell Electron Storage Ring (CESR), we have determined the ratio Γ(Ds+→φl+ν)/Γ(Ds+ →φπ+)=0.49±0.10-0.14+0.10. We use this measurement to derive B(Ds+→φπ+).
© 1990 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.65.1531
DOI:
10.1103/PhysRevLett.65.1531
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