Abstract
We have observed the - decay of the (1600) in the production reaction pp at 20 GeV. Using a calculation which takes into account the interference of the with the (770) and a Drell background, we find good evidence that this resonance is a radial excitation of the (770). The background interference strongly distorts the angular distributions predicted by a purely s-channel helicity-conserving production mechanism. We measure m0=(1.55±0.07) GeV/c2 and 0=(0.28-0.08+0.03) GeV/c2.
Original language | English (US) |
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Pages (from-to) | 751-754 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 53 |
Issue number | 8 |
DOIs | |
State | Published - 1984 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)