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Title: N* Experiments and Their Impact on Strong QCD Physics

Here, I give a brief overview of experimental studies of the spectrum and the structure of the excited states of the nucleon and what we learn about their internal structure. The focus is on the effort to obtain a more complete picture of the light-quark baryon excitation spectrum employing electromagnetic beams, and on the study of the transition form factors and helicity amplitudes and their dependence on the size of the four-momentum transfer $Q^2$, especially on some of the most prominent resonances. These were obtained in pion and eta electroproduction experiments off proton targets.
Authors:
ORCiD logo [1]
  1. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Report Number(s):
JLAB-PHY-18-2636; DOE/OR/23177-4335; arXiv:1801.10480
Journal ID: ISSN 0177-7963; PII: 1378
Grant/Contract Number:
AC05-06OR23177
Type:
Accepted Manuscript
Journal Name:
Few-Body Systems
Additional Journal Information:
Journal Volume: 59; Journal Issue: 4; Conference: NSTAR 2017, 20-23 Aug 2017. Columbia, SC, USA; Journal ID: ISSN 0177-7963
Publisher:
Springer
Research Org:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Contributing Orgs:
CLAS Collaboration
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; light-quark excitation; baryon spectrum; electroexcitation of nucleon resonances; quark core; meson-baryon contributions
OSTI Identifier:
1438547

Burkert, Volker D. N* Experiments and Their Impact on Strong QCD Physics. United States: N. p., Web. doi:10.1007/s00601-018-1378-7.
Burkert, Volker D. N* Experiments and Their Impact on Strong QCD Physics. United States. doi:10.1007/s00601-018-1378-7.
Burkert, Volker D. 2018. "N* Experiments and Their Impact on Strong QCD Physics". United States. doi:10.1007/s00601-018-1378-7.
@article{osti_1438547,
title = {N* Experiments and Their Impact on Strong QCD Physics},
author = {Burkert, Volker D.},
abstractNote = {Here, I give a brief overview of experimental studies of the spectrum and the structure of the excited states of the nucleon and what we learn about their internal structure. The focus is on the effort to obtain a more complete picture of the light-quark baryon excitation spectrum employing electromagnetic beams, and on the study of the transition form factors and helicity amplitudes and their dependence on the size of the four-momentum transfer $Q^2$, especially on some of the most prominent resonances. These were obtained in pion and eta electroproduction experiments off proton targets.},
doi = {10.1007/s00601-018-1378-7},
journal = {Few-Body Systems},
number = 4,
volume = 59,
place = {United States},
year = {2018},
month = {4}
}