Heidelberg 2015 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 40: Hadron Structure and Spectroscopy 9

HK 40.6: Talk

Wednesday, March 25, 2015, 16:00–16:15, T/SR19

Study of chiral dynamics in π⁻π⁰π⁰ production in Primakoff reactions at COMPASS — •Markus Krämer — Technische Universität München, Germany

COMPASS is a fixed-target experiment at CERN, which uses muon and hadron beams produced at the SPS to address a wide variety of physics topics. In 2009 during a two-week long period data were recorded in order to study the Primakoff reaction by colliding a 190 GeV/c pion beam on a nickel target. A partial-wave analysis of this data allows to measure the absolute cross section of the reaction π⁻γ → π⁻π⁰π⁰, which is predicted by chiral perturbation theory. The analysis of this reaction will be presented.

Supported by BMBF, MLL and the Cluster of Excellence Exc153 “Origin and Structure of the Universe”