Erlangen 2026 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 38: Hadron Structure and Spectroscopy VIII

HK 38.6: Talk

Thursday, March 19, 2026, 17:45–18:00, PHIL A 401

Recent Measurements of the Λ(1670) Differential Cross Section At the BGOOD Experiment — •David Kowalk and Thomas Jude for the BGOOD collaboration — Physikalisches Institut, Universität Bonn

The lighter Λ(1405) resonance is commonly interpreted as a KN bound state. It is therefore to be investigated if the heavier Λ(1670) may also exhibit this molecular structure. Forward angle K⁺ identification is therefore essential. The BGOOD photoproduction experiment is ideal for these studies. It consists of a central calorimeter, ideal for the identification of hyperon decays, and a forward spectrometer for K⁺ identification. I will present preliminary measurements of the K⁺Λ(1670) photoproduction differential cross section, identified via different Λ(1670) decay modes.

Keywords: BGOOD; Strangeness Sector; Baryon Spectroscopy; Molecular States