Return to search

Studies of the Decay η→π+π-π0 with WASA-at-COSY

In 2008 a large statistics sample of approximately 1·107 η-decays has been collected with the WASA detector at COSY using the pd→3Heη reaction at the beam kinetic energy of 1 GeV. These data are being used to study the not so rare η decays involving charged pions, like η→π+π-π0. This decay proceeds mainly via a strong isospin violating contribution, where the decay width is proportional to the light quark mass difference squared, (md-mu)2. In addition this decay can be used to search for C-violating effects. The analysis is presented and the Dalitz plot parameters with statistical and systematical uncertainties are determined from a sample of 1.33·105 η→π+π-π0 events in the Dalitz plot. The asymmetry parameters with statistical uncertainties are presented which show no evidence of C-violation. / WASA-at-COSY

Identiferoai:union.ndltd.org:UPSALLA1/oai:DiVA.org:uu-181236
Date January 2012
CreatorsAdlarson, Patrik
PublisherUppsala universitet, Kärnfysik, Uppsala
Source SetsDiVA Archive at Upsalla University
LanguageEnglish
Detected LanguageEnglish
TypeDoctoral thesis, monograph, info:eu-repo/semantics/doctoralThesis, text
Formatapplication/pdf
Rightsinfo:eu-repo/semantics/openAccess
RelationUppsala Dissertations from the Faculty of Science and Technology, 1104-2516 ; 100

Page generated in 0.0021 seconds