Speaker
Mr
Prometeusz Jasinski
(INP Mainz)
Description
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)
