Abstract
The circular photon asymmetry for π0η photoproduction on the proton was measured for the first time at the tagged photon facility of the MAMI C accelerator using the Crystal Ball/TAPS photon spectrometer. The experimental results are interpreted within a phenomenological isobar model that confirms the dominant role of the Δ(1700)D33 resonance. The measured asymmetry allows us to identify small contributions from positive-parity resonances via interference terms with the dominant D33 amplitude.
Original language | English |
---|---|
Pages (from-to) | 551-554 |
Number of pages | 4 |
Journal | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics |
Volume | 693 |
Issue number | 5 |
DOIs | |
Publication status | Published - 18 Oct 2010 |
Keywords
- Baryon resonances
- Polarization observables
- Pseudoscalar meson photoproduction
ASJC Scopus subject areas
- Nuclear and High Energy Physics