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; published in the issue dated 23 September 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
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