Jun 5 – 9, 2023
Genova, Italy
Europe/Rome timezone

Search for hybrid baryons with CLAS12 and KY electroproduction

Jun 8, 2023, 4:30 PM
DAD - Room 5L (Genova, Italy)

DAD - Room 5L

Genova, Italy

Invited Light baryon spectroscopy Light baryon spectroscopy


Lucilla Lanza (Istituto Nazionale di Fisica Nucleare)


An experimental program has been approved at the Thomas Jefferson National Accelerator Facility to measure the (ep,e’K+)Y reactions using the CLAS12 setup in Hall B.
Data have been obtained using electron beams with energies of 6.5, 7.5, and 10.2 GeV, impinging upon a liquid hydrogen target in the CLAS12 center. Scattered electrons have been detected in a polar angle range of 2.5° to 4.5° by the Forward Tagger (FT) and at angles greater than 6° in the CLAS12 Forward Detector, allowing to measure the KY electro-production differential cross section and to probe the Q2 evolution of the nucleon resonances electro-couplings in the Q2 range from 0.05 GeV2 to 3 GeV2. The study of the Q2 dependence of the electro-couplings will provide a crucial tool to investigate the possible hybrid nature of the nucleon resonances in the mass range of 2.0 GeV < W < 2.5 GeV where the lightest hybrid baryons are expected to be located based on LQCD studies of the N* spectrum. Experimental results for KY electroproduction will be reported and prospects for future studies will be discussed.

Primary author

Lucilla Lanza (Istituto Nazionale di Fisica Nucleare)

Presentation materials