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Inclusive production of the charmed baryon c+ from e+e- annihilations at s=10.55 geV

  • P. Avery
  • , D. Besson
  • , L. Garren
  • , J. Yelton
  • , K. Kinoshita
  • , F. M. Pipkin
  • , M. Procario
  • , Richard Wilson
  • , J. Wolinski
  • , D. Xiao
  • , Y. Zhu
  • , R. Ammar
  • , P. Baringer
  • , D. Coppage
  • , P. Haas
  • , 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

Research output: Contribution to journal › Article › peer-review

Abstract

We report results on inclusive production of the charmed baryon c+ from e+e- annihilations at s=10.5 GeV. Measurements are presented of the inclusive cross section times branching fraction for the continuum production of c+ as observed in six different decay modes, and of a new, improved value of the c+ mass. The inclusive cross section times the branching fraction into pK-+ is measured to be 10.01.51.5 pb summed over all xp. The branching fractions of c+ into pK»0, pK»0+-, +, +-+, and -K++ relative to that into pK-+ are measured to be 0.440.070.05, 0.430.120.04, 0.180.030.03, 0.650.110.12, and 0.150.040.03, respectively. The c+ mass is measured to be 2284.70.60.7 MeV/c2. The measured momentum distributions for continuum production of c+ are compared to analytical fragmentation functions and to other measurements.

Original languageEnglish (US)
Pages (from-to)3599-3610
Number of pages12
JournalPhysical Review D
Volume43
Issue number11
DOIs
StatePublished - 1991

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