Exclusive χ(2P) production in Υ{hooked}(3S) decay

G. Crawford, R. Fulton, K. K. Gan, H. Kagan, R. Kass, J. Lee, R. Malchow, F. Morrow, M. Sung, C. White, J. Whitmore, P. Wilson, F. Butler, X. Fu, G. Kalbfleisch, M. Lambrecht, P. Skubic, J. Snow, P. L. Wang, D. BortolettoD. N. Brown, J. Dominick, R. L. McIlwain, T. Miao, D. H. Miller, M. Modesitt, S. F. Schaffner, E. I. Shibata, I. P.J. Shipsey, M. Battle, J. Ernst, H. Kroha, S. Roberts, K. Sparks, E. H. Thorndike, C. H. Wang, R. Stroynowski, M. Artuso, M. Goldberg, N. Horwitz, R. Kennett, G. C. Moneti, S. Playfer, Y. Rozen, P. Rubin, T. Skwarnicki, S. Stone, M. Thulasidas, W. M. Yao, G. Zhu

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


Using the CsI calorimeter of the CLEO-II detector, we have studied exclusive radiative decays of the Υ{hooked}(3S) to the χ(2P) states where the final state consists of two photons and two leptons (e+e- or μ+μ-, from either the Υ{hooked}(1S) or Υ{hooked}(2S)). We observe and measure branching ratios for the J=2 and J=1χb(23PJ) states, and set upper limits for the J=0 state.

Original languageEnglish (US)
Pages (from-to)139-144
Number of pages6
JournalPhysics Letters B
Issue number1
StatePublished - Nov 5 1992


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