P-wave charmed mesons in e+e- annihilation

  • P. Avery
  • , D. Besson
  • , L. Garren
  • , J. Yelton
  • , T. Bowcock
  • , K. Kinoshita
  • , F. M. Pipkin
  • , M. Procario
  • , Richard Wilson
  • , J. Wolinski
  • , D. Xiao
  • , R. Ammar
  • , P. Baringer
  • , P. Haas
  • , Ha Lam
  • , A. Jawahery
  • , C. H. Park
  • , J. K. Nelson
  • , D. Perticone
  • , R. Poling
  • W. Y. Chen, J. Dominick, R. L. McIlwain, D. H. Miller, C. R. Ng, S. F. Schaffner, E. I. Shibata, W. M. Yao, K. Sparks, E. H. Thorndike, M. S. Alam, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, D. Bortoletto, M. Goldberg, N. Horwitz, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P.J. Shipsey, T. Skwarnicki, S. E. Csorna, T. Letson, J. Alexander, M. Artuso, C. Bebek, K. Berkelman, 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, Y. Kubota, J. D. Lewis, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, C. O'Grady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

Using the CLEO detector at the Cornell Electron Storage Ring, we have found evidence for L=1 charmed mesons in e+e- annihilations. We observe a D**0 state at mass 2461±3±1 MeV/c2 and width 20-12-10+9+9 MeV/c2 decaying to D+-. We also see an enhancement in the m(D*+-)-m(D*+) mass-difference spectrum and by examining D*+ decay-angle dependence, we see structure consistent with two states decaying to D*+-. We observe a lower-mass state, at mass (2428±3±2) MeV/c2 and width (23-6-4+8+10) MeV/c2, assuming that the higher-mass component is from the decay D**0(2461)D*+-. We present arguments for the spin-parity assignments of these states. We also report observation of candidate L=1 cs» state decaying to D*+Ks0.

Original languageEnglish (US)
Pages (from-to)774-779
Number of pages6
JournalPhysical Review D
Volume41
Issue number3
DOIs
StatePublished - 1990
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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