Electromagnetic form factors of nucleon resonances from CLAS

Exclusive single and double meson photo- and electroproduction reactions are the largest sources of information on the spectrum and structure of nucleon resonances. The excited states of the nucleon manifest as a complex interplay between the inner core of three dressed quarks and the external meson...

Full description

Saved in:

Bibliographic Details
Published in:	EPJ Web of Conferences Vol. 222; p. 2003
Main Authors:	Isupov, Evgeny L., Chesnokov, Vitaly V., Golovach, Evgeny N., Golubenko, Anna A., Ishkhanov, Boris S., Klimenko, Valery A.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Les Ulis EDP Sciences 2019
Subjects:	Electron beams Form factors Nucleons Quantum chromodynamics Quarks
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Exclusive single and double meson photo- and electroproduction reactions are the largest sources of information on the spectrum and structure of nucleon resonances. The excited states of the nucleon manifest as a complex interplay between the inner core of three dressed quarks and the external meson-baryon cloud. Various N* with distinctively different structure appear as unique laboratory where many features of strong QCD can be explored. With combination of nearly 4π acceptance of the CLAS detector and continuous electron beam (Jefferson Lab, USA) it is possible to obtain physics observables of the major reaction channels in the N* excitation region. The results on the electromagnetic transition form factors of N(1440)1/2 + and N(1520)3/2 - are presented.
ISSN:	2100-014X 2101-6275 2100-014X
DOI:	10.1051/epjconf/201922202003