Vacuum Properties of the Σ(1385)+ Resonance
Abstract
We present data taken employing a proton beam incident on a liquid hydrogen target with a kinetic energy of 3.5 GeV. A total statistics of ≈ 1.2.109 events was collected by the High Acceptance Di-Electron Spectrometer (HADES) and analysed to study the properties of the Σ(1385)+-resonance. A clear signal corresponding to a peak of the Breit-Wigner parametrization of M = 1382.98±0.79MeV/c2 and a width of Γ0 = 38.78±2.03 MeV/c2 was extracted. The investigation of the differential production cross- section shows a strong anisotropy in the angular distribution of the Σ(1385)+-hyperon with respect to the beam direction in p+p collisions.
- Publication:
-
International Conference on the Structure of Baryons (BARYONS' 10)
- Pub Date:
- October 2011
- DOI:
- 10.1063/1.3647402
- Bibcode:
- 2011AIPC.1388..334E
- Keywords:
-
- protons;
- chiral symmetries;
- hyperon-nucleus reactions;
- 14.20.Dh;
- 11.30.Rd;
- 25.80.Pw;
- Protons and neutrons;
- Chiral symmetries;
- Hyperon-induced reactions