Erlangen 2026 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 11: Hadron Structure and Spectroscopy III
HK 11.5: Vortrag
Dienstag, 17. März 2026, 17:45–18:00, PHIL C 301
K*+ Λ and K*+ Σ0 photoproduction at the BGOOD experiment — •Amelia Carina de Lope Fend for the BGOOD collaboration — Physikalisches Institut, Universität Bonn
In recent years exotic multi-quark states such as the XYZ mesons and the Pc pentaquark states have been discovered in the charm quark sector. Structures in γ p → K+ Σ0 and γ p → K0 Σ+ cross sections may be evidence of an equivalence in the light quark sector where (K*Σ )+ and K*+Λ dynamically generated states may exist.
The BGOOD experiment at the ELSA facility is especially suited to investigate this, as it provides a unique forward spectrometer for K+ identification and momentum reconstruction and a central calorimeter for neutral hadron decays.
Current studies of the photoproduction reactions γ p → K*+ Λ and γ p → K*+ Σ0 are archieved via the identification of the decay K*+ → K+ π0 and focus on measuring the differential cross section with high statistical precision at forward K*+ angles. Preliminary results will be presented.
Keywords: exotic states; photoproduction; light quark sector