CERN Accelerating science

Published Articles
Title Tests of Chiral perturbation theory with COMPASS
Author(s) Friedrich, Jan M (CERN)
Collaboration COMPASS Collaboration
Publication 2014
Number of pages 4
In: EPJ Web Conf. 73 (2014) 05011
In: 13th International Conference on Meson-Nucleon Physics and the Structure of the Nucleon, Rome, Italy, 30 Sep - 4 Oct 2013, pp.05011
DOI 10.1051/epjconf/20147305011
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN SPS ; COMPASS NA58
Abstract The COMPASS experiment at CERN accesses pion-photon reactions via the Primakoff effect., where high-energetic pions react with the quasi-real photon field surrounding the target nuclei. When a single real photon is produced, pion Compton scattering is accessed and from the measured cross-section shape, the pion polarisability is determined. The COMPASS measurement is in contradiction to the earlier dedicated measurements, and rather in agreement with the theoretical expectation from ChPT. In the same experimental data taking, reactions with neutral and charged pions in the final state are measured and analyzed in the context of chiral perturbation theory.
Copyright/License CC-BY-4.0

Corresponding record in: Inspire


 Záznam vytvorený 2016-07-27, zmenený 2017-07-31


Plný text:
Nahraj plný text
PDF

  • Send to ScienceWise.info