Mainz 2012 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 38: Hadronenstruktur und -spektroskopie

HK 38.3: Vortrag

Donnerstag, 22. März 2012, 17:30–17:45, RW 1

ω Photoproduction off Protons and Neutrons with CBELSA-TAPS^⋆ — •Frida Dietz — II. Physikalisches Institut, Heinrich-Buff-Ring 16, 35392 Giessen

ω photoproduction off LH₂ and LD₂ targets has been studied with the tagged photon beam of the ELSA accelerator in Bonn. The combined setup of the Crystal Barrel and TAPS detecting systems, which formed a 4π electromagnetic calorimeter, was used for detecting the ω meson via the ω → π⁰ γ decay mode. The aim of this study is to determine the ω photoproduction cross section on the neutron, which has not been measured so far but is an important prerequisite for studying the in-medium properties of the ω meson. The quasi-free production channels of the ω off the proton and neutron were studied with both exclusive and inclusive analyses. Preliminary results on both the total and differential cross sections will be presented.
^⋆ supported by the DFG (SFB/TR-16)