Jun 13 – 17, 2011
Europe/Berlin timezone
Proceedings are now available online at <a href="http://www.slac.stanford.edu/econf/C110613/">eConf</a>

Analysis of diffractive dissociation of exclusive $K^{-} \pi^{+} \pi^{-}$ events in the high energetic hadron beam of the COMPASS-experiment

Jun 14, 2011, 5:50 PM
Festsaal (Künstlerhaus)



talk Light Mesons Light Mesons


Mr Prometeusz Jasinski (INP Mainz)


In order to study the light mesons spectrum the COMPASS experiment at CERN took data with a 190 GeV/c hadron beam hitting a liquid hydrogen target in the years 2008 and 2009. The negative hadron beam contains mainly pions and a small fraction of about 2.5\% of kaons. Kaons are identified using CEDAR PID detectors in the beamline. One of the channels of interest are diffractively produced resonance decaying into the $K^-$ $\pi^+$ $\pi^-$ final state. I will discuss the data selection and quality studies for this channel. The invariant mass spectra show already the well known resonances as the $K_1(1270)$ $K_1(1400)$ and the $K_2(1770)$. To disentangle all contributing resonances techniques of partial wave analysis are applied. A short review on this studies will be presented. Supported by BMBF under the contract 06MZ224

Primary author

Mr Prometeusz Jasinski (INP Mainz)


Presentation materials