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Sep 5 – 9, 2022
online
US/Eastern timezone
Thank you to all the participants for a great QNP2022!

Hyperons electromagnetic form factors with HADES

Sep 6, 2022, 3:25 PM
25m
online

online

FSU, Tallahassee, FL, USA
oral presentation Hadron Structure

Speaker

Rafał Lalik (Jagiellonian University, Kraków)

Description

Radiative transition of an excited baryon to a nucleon with emission of a virtual massive photon converting to dielectron pair (Dalitz decays) provides important information about baryon-photon coupling at low q2 in timelike region. These measurements are complementary to time like e+e- annihilation experiments at larger q2 value and meson production with electron and photon beams covering space like region. In this talk an extension of the HADES programme on non-strange baryons (see B. Ramstein) for Hyperons will be presented. Perspective for Dalitz decays of L(1520)/S(1385)->Lambda e+e- in high statistical run with p+p at 4.5 GeV will be given. Furthermore, results for L(1520)->Lambda pi+pi decay from p+p at 3.5 GeV will be given. They provide valuable constraints on isospin=0/1 contribution to Dalitz decay.

speaker affiliation Jagiellonian University

Primary author

Rafał Lalik (Jagiellonian University, Kraków)

Presentation materials