Observation of Σ0c-->Λ+cπ- decays
Abstract
Using a sample of approximately 120 Λ+c-->pK-π+ decays reconstructed in photoproduction experiment E691 at Fermilab, we have searched for Σc production and decay into Λcπ. A signal of 14+/-4 Σ0c decays is observed. The Σ0c-Λ+c mass difference is measured to be 168.4+/-1.0+/-0.3 MeV/c2. We also report on the relative fraction of Σc production as compared to inclusive Λc production at an average photon energy of 145 GeV.
- Publication:
-
Physical Review Letters
- Pub Date:
- April 1989
- DOI:
- 10.1103/PhysRevLett.62.1721
- Bibcode:
- 1989PhRvL..62.1721A
- Keywords:
-
- 13.30.Eg;
- 13.60.Rj;
- 14.20.Kp;
- Hadronic decays;
- Baryon production