Polarisation observables are measured with the Crystal Barrel/TAPS experiment at ELSA for photoproduction reactions with various final states, using a circularly or linearly polarised photon beam and a longitudinally or transversely polarised frozen spin butanol target. The Crystal Barrel/TAPS setup provides a nearly 4π angular coverage, a good energy resolution and a high detection efficiency for photons, and is therefore ideally suited to study final states comprising neutral mesons. Results for the measurement of the double polarisation observable E for pion and eta photoproduction off the proton are presented.
@article{arxiv.1109.4066,
title = {Measurement of the double polarisation observable E in single pseudoscalar meson production},
author = {Jonas Müller and Manuela Gottschall},
journal= {arXiv preprint arXiv:1109.4066},
year = {2011}
}
Comments
4 pages, 2 figures. Proceedings of Hadron 2011 conference