Phys. Rev. Lett. 67, 1696 - 1700 (1991)
Inclusive χ(2P) production in Υ(3S) decay
R. Morrison et al.
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R. Morrison, D. Schmidt, M. Procario, D. R. Johnson, K. Lingel, P. Rankin, J. G. Smith, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, D. Besson, T. E. Browder, D. G. Cassel, E. Cheu, D. M. Coffman, P. S. Drell, R. Ehrlich, R. S. Galik, M. Garcia-Sciveres, B. Geiser, B. Gittelman, S. W. Gray, D. L. Hartill, B. K. Heltsley, K. Honscheid, J. Kandaswamy, N. Katayama, D. L. Kreinick, J. D. Lewis, G. S. Ludwig, J. Masui, J. Mevissen, N. B. Mistry, S. Nandi, C. R. Ng, E. Nordberg, C. O’Grady, J. R. Patterson, D. Peterson, M. Pisharody, D. Riley, M. Sapper, M. Selen, H. Worden, M. Worris, P. Avery, A. Freyberger, J. Rodriguez, J. Yelton, K. Kinoshita, F. Pipkin, R. Wilson, J. Wolinski, D. Xiao, A. J. Sadoff, R. Ammar, P. Baringer, D. Coppage, R. Davis, P. Haas, M. Kelly, N. Kwak, H. Lam, S. Ro, Y. Kubota, J. K. Nelson, D. Perticone, R. Poling, S. Schrenk, M. S. Alam, I. J. Kim, B. Nemati, V. Romero, C. R. Sun, P.-N. Wang, M. M. Zoeller, G. Crawford, R. Fulton, K. K. Gan, T. Jensen, H. Kagan, R. Kass, R. Malchow, F. Morrow, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P.-L. Wang, D. Bortoletto, D. N. Brown, J. Dominick, R. L. McIlwain, D. H. Miller, M. Modesitt, S. F. Schaffner, E. I. Shibata, I. P. J. Shipsey, M. Battle, H. Kroha, K. Sparks, E. H. Thorndike, C.-H. Wang, M. Goldberg, T. Haupt, N. Horwitz, V. Jain, R. Kennett, G. C. Moneti, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thusalidas, W.-M. Yao, G. Zhu, A. V. Barnes, J. Bartelt, S. E. Csorna, T. Letson, M. D. Mestayer, D. S. Akerib, B. Barish, D. F. Cowen, G. Eigen, R. Stroynowski, J. Urheim, and A. J. Weinstein
University of California at Santa Barbara, Santa Barbara, California 93106
Carnegie Mellon University, Pittsburgh, Pennsylvania 15213
University of Colorado, Boulder, Colorado 80309-0390
Cornell University, Ithaca, New York 14853
University of Florida, Gainesville, Florida 32611
Harvard University, Cambridge, Massachusetts 02138
Ithaca College, Ithaca, New York 14850
University of Kansas, Lawrence, Kansas 66045
University of Minnesota, Minneapolis, Minnesota 55455
State University of New York at Albany, Albany, New York 12222
Ohio State University, Columbus, Ohio, 43210
University of Oklahoma, Norman, Oklahoma 73019
Purdue University, West Lafayette, Indiana 47907
University of Rochester, Rochester, New York 14627
Syracuse University, Syracuse, New York 13244
Vanderbilt University, Nashville, Tennessee 37235
California Institute of Technology, Pasadena, California 91125
Received 30 May 1991
Using the CsI calorimeter of the CLEO II detector, the spin triplet χb(2P) states are observed in Υ(3S) radiative decays with much higher statistics than seen in previous experiments. The observed mass splittings are not described well by theoretical models, while the relative branching ratios agree with predictions that include relativistic corrections to the radiative transition rates.
©1991 The American Physical Society
URL: http://link.aps.org/doi/10.1103/PhysRevLett.67.1696
DOI: 10.1103/PhysRevLett.67.1696
PACS: 14.40.Gx, 13.40.Hq
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