Abstract
We have measured several branching ratios for ψ′ decay using the data collected by the FNAL E835 experiment during the year 2000, obtaining B(ψ′ → e+e-) = 0.0068 ± 0.0001 ± 0.0004, B(ψ′ → J/ψπ+π-) = 0.292 ± 0.005 ± 0.018, B(ψ′ → J/ψπ0π0) = 0.167 ± 0.005 ± 0.014, and B(ψ′ → J/ψη) = 0.028 ± 0.002 ± 0.002. We also present a measurement of the dipion mass distribution in the decays ψ′ → J/ψππ.
| Original language | English (US) |
|---|---|
| Article number | 032006 |
| Pages (from-to) | 032006-1-032006-7 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 71 |
| Issue number | 3 |
| DOIs | |
| State | Published - Feb 2005 |
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