Decays of the J into two pseudoscalar mesons

R. M. Baltrusaitis, D. Coffman, J. Hauser, D. G. Hitlin, J. D. Richman, J. J. Russell, R. H. Schindler, D. E. Dorfan, R. Fabrizio, F. Grancagnolo, R. P. Hamilton, C. A. Heusch, L. Köpke, R. Partridge, J. Perrier, H. F.W. Sadrozinski, M. Scarlatella, T. L. Schalk, A. Seiden, A. J. WeinsteinJ. J. Becker, G. T. Blaylock, J. S. Brown, H. Cui, B. I. Eisenstein, G. Gladding, S. A. Plaetzer, A. L. Spadafora, J. J. Thaler, A. Wattenberg, W. J. Wisniewski, K. O. Bunnell, R. E. Cassell, D. H. Coward, K. F. Einsweiler, L. Moss, R. F. Mozley, A. Odian, J. R. Roehrig, W. Toki, Y. Unno, F. Villa, N. Wermes, D. Wisinski, T. H. Burnett, V. Cook, C. Del Papa, A. L. Duncan, P. M. Mockett, A. Nappi, J. C. Sleeman, H. J. Willutzki

Research output: Contribution to journalArticlepeer-review


New results are obtained for the decays J/o+- and JK+K-. The first observation of the decay JKS0KL0 is reported. Branching ratios are measured to be (1.580.200.15)×10-4, (2.390.240.22)×10-4, and (×10-4, respectively. The corresponding electromagnetic form factors are &2=(11.91.50. 9)×10-3 and &2=(20.92.11. 5) ×10-3. The KS0-KL0 transition form factor & 2=(×10-3 is obtained. A 90%-confidence-level upper limit of 5.2×10-6 is given for the branching ratio for the decay JKS0KS0. These form factors are substantially larger than expectations based on vector dominance and indicate large SU3-symmetry-breaking effects.

Original languageEnglish (US)
Pages (from-to)566-574
Number of pages9
JournalPhysical Review D
Issue number3
StatePublished - 1985

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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