Abstract
We measure the cross section for e+e-→ψ(3770)→hadrons at Ec.m.=3773MeV to be (6.38±0.08-0.30+0.41)nb using the CLEO detector at the CESR e+e- collider. The difference between this and the e+e- →ψ(3770)→DD̄ cross section at the same energy is found to be (-0.01±0.08-0.30+0.41)nb. With the observed total cross section, we extract Γee(ψ(3770))=(0.204±0.003-0.027+0.041)keV. Uncertainties shown are statistical and systematic, respectively.
| Original language | English (US) |
|---|---|
| Article number | 092002 |
| Journal | Physical review letters |
| Volume | 96 |
| Issue number | 9 |
| DOIs | |
| State | Published - 2006 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
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