Abstract
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 (1.010.160.09)×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=(8.91.40.5)×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 language | English (US) |
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Pages (from-to) | 566-574 |
Number of pages | 9 |
Journal | Physical Review D |
Volume | 32 |
Issue number | 3 |
DOIs | |
State | Published - 1985 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)