Gießen 2024 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 11: Hadron Structure and Spectroscopy II

HK 11.3: Talk

Monday, March 11, 2024, 17:15–17:30, HBR 62: EG 19

Investigation of K⁺ (Λ(1405) → Σ⁺π⁻) photoproduction at the BGOOD experiment — •Linus Plagens for the BGOOD collaboration — Physikalisches Institut, Universität Bonn

Since its discovery in the 1960’s, the Λ(1405) resonance has been intensively studied and today is considered as the archetype of a dynamically generated resonance. It is imperative to conduct precise measurements on its invariant mass distribution, commonly referred to as the line shape, as well as its differential cross section. The BGOOD experiment at the Electron Stretcher Accelerator (ELSA) at the University of Bonn is well-suited for this task. The unique combination of a central detector with a forward spectrometer allows the investigation of very forward-going kaons through meson photoproduction. In this talk, results obtained for the differential cross section for Λ(1405) → Σ⁺π⁻ in the reaction γ p → K⁺Λ(1405) will be presented.

Supported by DFG projects 388979758/405882627 and the European Union’s Horizon 2020 programme, grant 824093.

Keywords: Lambda; Photoproduction; BGOOD; Dynamically generated resonance; forward spectrometer