# The 12th International Workshop on the Physics of Excited Nucleons

10-14 June 2019
Bonn, Campus Poppelsdorf
Europe/Zurich timezone

## K⁺ Λ(1405) photoproduction at the BGO-OD experiment

13 Jun 2019, 16:30
30m
HS 6 ()

### HS 6

Baryon spectrum through meson photoproduction

### Speaker

Georg Scheluchin (Physikalisches Institut)

### Description

Since the discovery of the $\Lambda(1405)$, 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 $\Lambda(1405)$ can be produced in the reaction $\gamma p \rightarrow K^+ \Lambda(1405)$. The pure I=0 decay mode into $\Sigma^0\pi^0$ is prohibited for the mass-overlapping $\Sigma(1385)$. 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 will be presented.

*Supported by DFG (PN 50165297).

### Primary author

Georg Scheluchin (Physikalisches Institut)