Bochum 2018 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 45: Hadron Structure and Spectroscopy VIII
HK 45.5: Vortrag
Donnerstag, 1. März 2018, 15:15–15:30, HZO 50
K+Λ(1405) production at extreme forward angles — •Georg Scheluchin for the BGO-OD collaboration — Physikalisches Institut, Nussallee 12, D-53115 Bonn
One aim of the BGO-OD experiment is the investigation of hyperon photoproduction. The setup combines a large aperture forward magnetic spectrometer and a central BGO crystal calorimeter.
Since the discovery of the Λ(1405), it remains poorly described by conventional constituent quark models, and it is a candidate for having an "exotic" meson-baryon or "penta-quark" structure, similar to states recently reported in the hidden charm sector.
The Λ(1405) can be produced in the reaction γ p → K+ Λ(1405). One decay mode is into Σ0π0, which is prohibited for the mass-overlapping Σ(1385). BGO-OD is ideally suited to measure this decay with the K+ in the forward direction. Using the newest available data at the BGO-OD experiment preliminary results will be presented.
*Supported by DFG (PN 50165297).