Article ID Journal Published Year Pages File Type
9861311 Physics Letters B 2005 7 Pages PDF
Abstract
Using 14 million ψ(2S) events collected with the BESII detector, branching fractions of ψ(2S)→K∗(892)+K−+c.c. and K∗(892)0K¯0+c.c. are determined to be: B(ψ(2S)→K∗(892)+K−+c.c.)=(2.9−1.7+1.3±0.4)×10−5 and B(ψ(2S)→K∗(892)0K¯0+c.c.)=(13.3−2.7+2.4±1.7)×10−5. The results confirm the violation of the “12% rule” for these two decay channels. A large isospin violation between the charged and neutral modes is observed.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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