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Darmstadt 2016 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 23: Hadron Structure and Spectroscopy IV

HK 23.6: Talk

Tuesday, March 15, 2016, 18:00–18:15, S1/01 A5

Modeling of non-resonant Deck-like contributions in diffractive-dissociation reactions at COMPASS — •Dmitri Rybachikov — Physik-Department E18, Technische Universität München

COMPASS is a multi-purpose fixed-target experiment at the CERN Super Proton Synchrotron aimed at studying the structure and spectrum of hadrons. The spectrum of light-meson resonances is studied in diffractive-dissociation reactions using a 190 GeV/c π beam. The flagship channel is the ππ+π final state, for which COMPASS has recorded the currently largest data sample. The extraction of resonances from these data is limited mainly by the understanding of non-resonant components. One of the main non-resonant production mechanisms in this reaction is the Deck effect. We will present studies of a model of the Deck process and compare it to COMPASS data.

This work was supported by the BMBF, the DFG Cluster of Excellence “Origin and Structure of the Universe” (Exc 153), and the Maier-Leibnitz-Laboratorium der Universität und der Technischen Universität München.

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