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HK: Fachverband Physik der Hadronen und Kerne
HK 33: Hadron Structure and Spectroscopy V
HK 33.3: Vortrag
Mittwoch, 20. März 2019, 15:00–15:15, HS 13
K+Λ(1405) photoproduction at the BGO-OD experiment — •Georg Scheluchin for the BGO-OD collaboration — Physikalisches Institut, Nussallee 12, D-53115 Bonn
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). The pure I=0 decay mode into Σ0π0 is prohibited for the mass-overlapping Σ(1385). Combining a large aperture forward magnetic spectrometer and a central BGO crystal calorimeter, the BGO-OD experiment is ideally suited to measure this decay with the K+ in the forward direction. Preliminary results using the newest available data will be presented.
*Supported by DFG (PN 50165297).