Measurements of J/ decays into a vector and a pseudoscalar meson

D. Coffman, G. P. Dubois, G. Eigen, J. Hauser, D. G. Hitlin, C. G. Matthews, J. D. Richman, W. J. Wisniewski, Y. Zhu, M. Burchell, D. E. Dorfan, J. Drinkard, C. Gatto, R. P. Hamilton, C. A. Heusch, L. Köpke, W. S. Lockman, R. Partridge, J. Perrier, H. F.W. SadrozinskiM. Scarlatella, T. L. Schalk, A. Seiden, A. J. Weinstein, R. Xu, J. J. Becker, G. T. Blaylock, B. I. Eisenstein, T. Freese, G. Gladding, J. M. Izen, S. A. Plaetzer, C. Simopoulos, A. L. Spadafora, I. E. Stockdale, J. J. Thaler, B. Tripsas, U. Mallik, J. Adler, T. Bolton, J. C. Brient, K. O. Bunnell, R. E. Cassell, D. H. Coward, K. F. Einsweiler, C. Grab, R. F. Mozley, A. Odian, D. Pitman, R. H. Schindler, W. Stockhausen, W. Toki, F. Villa, S. Wasserbaech, N. Wermes, D. Wisinski, J. S. Brown, T. H. Burnett, V. Cook, A. L. Duncan, A. Li, R. Mir, P. M. Mockett, B. Nemati, L. Parrish, H. J. Willutzki

Research output: Contribution to journalArticlepeer-review

Abstract

We present measurements of the two-body decays of the J/ into a vector and a pseudoscalar meson. The data, taken with the Mark III detector at the SLAC e+e- storage ring SPEAR, consist of 5.8×106 produced J/s. The branching ratios for the J/ decays into , , , 0, , , , , and K*K are measured; an upper limit on J/0 is obtained. Using the measured branching ratios we obtain parameters of a phenomenological model of J/ decays, indicating that the and are consistent with being composed only of light and strange quarks. The model is used to obtain the mixing angle in the pseudoscalar nonet. The 0 electromagnetic form factor is determined. The upper limit on J/0 is used to study the contributions from electromagnetic doublyOkubo-Zweig-Iizukasuppressed decays of the J/. AE

Original languageEnglish (US)
Pages (from-to)2695-2705
Number of pages11
JournalPhysical Review D
Volume38
Issue number9
DOIs
StatePublished - 1988
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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