Skip to main content
SpringerLink
Log in

N\(^*\) Experiments and Their Impact on Strong QCD Physics

  • Published:
Few-Body Systems Aims and scope Submit manuscript

Abstract

I give a brief report on 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 an 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.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. F.W. Dyson, A.S. Eddington, C. Davidson, Philos. Trans. R. Soc. Lond. A 220, 291 (1920)

    Article  ADS  Google Scholar 

  2. A. Einstein, Ann. Phys. 49(7), 769 (1916) [Annalen Phys. 14, 517 (2005)]

  3. H.L. Anderson, E. Fermi, E.A. Long, D.E. Nagle, Phys. Rev. 85, 936 (1952)

    Article  ADS  Google Scholar 

  4. M. Gell-Mann, A schematic model of baryons and mesons. Phys. Lett. 8, 214 (1964)

    Article  ADS  Google Scholar 

  5. G. Zweig, An SU(3) model for strong interaction symmetry and its breaking, CERN-TH-401 and 412 (1964)

  6. O.W. Greenberg, Phys. Rev. Lett. 13, 598 (1964)

    Article  ADS  Google Scholar 

  7. A. Bazavov et al., Phys. Rev. Lett. 113(7), 072001 (2014)

    Article  ADS  Google Scholar 

  8. A. Bazavov et al., Phys. Lett. B 737, 210 (2014)

    Article  ADS  Google Scholar 

  9. V.D. Burkert, T.S.H. Lee, Int. J. Mod. Phys. E 13, 1035 (2004)

    Article  ADS  Google Scholar 

  10. C. Patrignani et al. [Particle Data Group], Chin. Phys. C 40(10), 100001 (2016)

  11. J.J. Dudek, R.G. Edwards, Phys. Rev. D 85, 054016 (2012)

    Article  ADS  Google Scholar 

  12. N. Suzuki et al., Phys. Rev. Lett. 104, 042302 (2010)

    Article  ADS  Google Scholar 

  13. E. Klempt, J.M. Richard, Rev. Mod. Phys. 82, 1095 (2010)

    Article  ADS  Google Scholar 

  14. L. Tiator, D. Drechsel, S.S. Kamalov, M. Vanderhaeghen, Eur. Phys. J. ST 198, 141 (2011)

    Article  Google Scholar 

  15. I.G. Aznauryan, V.D. Burkert, Prog. Part. Nucl. Phys. 67, 1 (2012)

    Article  ADS  Google Scholar 

  16. I.G. Aznauryan et al., Int. J. Mod. Phys. E 22, 1330015 (2013)

    Article  ADS  Google Scholar 

  17. V. Crede, W. Roberts, Rept. Prog. Phys. 76, 076301 (2013)

    Article  ADS  Google Scholar 

  18. V.I. Mokeev et al., Phys. Rev. C 93(2), 025206 (2016)

    Article  ADS  Google Scholar 

  19. V.D. Burkert, C. D. Roberts, arXiv:1710.02549 [nucl-ex]

  20. S. Capstick, W. Roberts, Phys. Rev. D 49, 4570 (1994)

    Article  ADS  Google Scholar 

  21. M. Dugger et al., Phys. Rev. Lett. 96, 062001 (2006) [Phys. Rev. Lett. 96, 169905 (2006)]

  22. M. Dugger et al., [CLAS Collaboration]. Phys. Rev. C 79, 065206 (2009)

  23. M. Williams et al., [CLAS Collaboration]. Phys. Rev. C 80, 045213 (2009)

  24. M. Williams et al., [CLAS Collaboration]. Phys. Rev. C 80, 065209 (2009)

  25. M. Williams et al., [CLAS Collaboration]. Phys. Rev. C 80, 065208 (2009)

  26. R.K. Bradford et al., [CLAS Collaboration]. Phys. Rev. C 75, 035205 (2007)

  27. R. Bradford et al., [CLAS Collaboration]. Phys. Rev. C 73, 035202 (2006)

  28. M.E. McCracken et al., [CLAS Collaboration]. Phys. Rev. C 81, 025201 (2010)

  29. B. Dey et al., [CLAS Collaboration]. Phys. Rev. C 82, 025202 (2010)

  30. J.W.C. McNabb et al., [CLAS Collaboration]. Phys. Rev. C 69, 042201 (2004)

  31. C.A. Paterson et al., [CLAS Collaboration], Phys. Rev. C 93(6), 065201 (2016)

  32. N. Compton et al., [CLAS Collaboration], Phys. Rev. C 96(6), 065201 (2017)

  33. D. Ho et al., [CLAS Collaboration], Phys. Rev. Lett. 118(24), 242002 (2017)

  34. A.V. Anisovich et al., [CLAS Collaboration]. Phys. Lett. B 771, 142 (2017)

  35. A. Anisovich, R. Beck, E. Klempt, V. Nikonov, A. Sarantsev, U. Thoma, Eur. Phys. J. A 48, 15 (2012)

    Article  ADS  Google Scholar 

  36. B. Julia-Diaz, T.-S.H. Lee, A. Matsuyama, T. Sato, Phys. Rev. C 76, 065201 (2007)

    Article  ADS  Google Scholar 

  37. D. Rönchen et al., Eur. Phys. J. A 50(6), 101 (2014)

    Article  ADS  Google Scholar 

  38. H. Kamano, S.X. Nakamura, T.-S.H. Lee, T. Sato, Phys. Rev. C 88(3), 035209 (2013)

    Article  ADS  Google Scholar 

  39. A.V. Anisovich et al., Phys. Lett. B 766, 357 (2017)

    Article  ADS  Google Scholar 

  40. H. Seraydaryan et al. [CLAS Collaboration], Phys. Rev. C 89(5), 055206 (2014)

  41. B. Dey et al. [CLAS Collaboration], Phys. Rev. C 89(5), 055208 (2014)

  42. P. Collins et al., Phys. Lett. B 773, 112 (2017)

    Article  ADS  Google Scholar 

  43. B.C. Liu, B.S. Zou, Phys. Rev. Lett. 96, 042002 (2006)

    Article  ADS  Google Scholar 

  44. R.F. Lebed, Phys. Rev. D 92(11), 114030 (2015)

    Article  ADS  Google Scholar 

  45. K. Joo et al., [CLAS Collaboration]. Phys. Rev. Lett. 88, 122001 (2002)

  46. M. Ungaro et al., [CLAS Collaboration]. Phys. Rev. Lett. 97, 112003 (2006)

  47. V.V. Frolov et al., Phys. Rev. Lett. 82, 45 (1999)

    Article  ADS  Google Scholar 

  48. I.G. Aznauryan et al., [CLAS Collaboration]. Phys. Rev. C 80, 055203 (2009)

  49. I.G. Aznauryan et al., [CLAS Collaboration]. Phys. Rev. C 78, 045209 (2008)

  50. V.I. Mokeev et al., [CLAS Collaboration]. Phys. Rev. C 86, 035203 (2012)

  51. H. Denizli et al., [CLAS Collaboration]. Phys. Rev. C 76, 015204 (2007)

  52. C.S. Armstrong et al., [Jefferson Lab E94014 Collaboration]. Phys. Rev. D 60, 052004 (1999)

  53. H. Egiyan et al., [CLAS Collaboration]. Phys. Rev. C 73, 025204 (2006)

  54. K. Park et al., [CLAS Collaboration]. Phys. Rev. C 77, 015208 (2008)

  55. K. Park et al., [CLAS Collaboration]. Phys. Rev. C 91, 045203 (2015)

  56. I.G. Aznauryan, V.D. Burkert, Phys. Rev. C 92(3), 035211 (2015)

    Article  ADS  Google Scholar 

  57. I.G. Aznauryan, V.D. Burkert, arXiv:1603.06692 [hep-ph]

  58. J. Segovia, I.C. Cloet, C.D. Roberts, S.M. Schmidt, Few Body Syst. 55, 1185 (2014)

    Article  ADS  Google Scholar 

  59. H.R. Grigoryan, T.-S.H. Lee, H.U. Yee, Phys. Rev. D 80, 055006 (2009)

    Article  ADS  Google Scholar 

  60. J. Segovia et al., Phys. Rev. Lett. 115(17), 171801 (2015)

    Article  ADS  Google Scholar 

  61. I.V. Anikin, V.M. Braun, N. Offen, Phys. Rev. D 92(1), 014018 (2015)

    Article  ADS  Google Scholar 

  62. I.T. Obukhovsky et al., Phys. Rev. D 84, 014004 (2011)

    Article  ADS  Google Scholar 

  63. T. Bauer, S. Scherer, L. Tiator, Phys. Rev. C 90(1), 015201 (2014)

    Article  ADS  Google Scholar 

  64. L. Tiator, M. Vanderhaeghen, Phys. Lett. B 672, 344 (2009)

    Article  ADS  Google Scholar 

  65. Z p Li, V. Burkert, Z j Li, Phys. Rev. D 46, 70 (1992)

    Article  ADS  Google Scholar 

  66. R.G. Moorhouse, Phys. Rev. Lett. 16, 772 (1966)

    Article  ADS  Google Scholar 

  67. I.G. Aznauryan, V. Burkert, Phys. Rev. C 95(6), 065207 (2017)

    Article  ADS  Google Scholar 

  68. E. Santopinto, M.M. Giannini, Phys. Rev. C 86, 065202 (2012)

    Article  ADS  Google Scholar 

  69. E.L. Isupov et al., [CLAS Collaboration], Phys. Rev. C 96(2), 025209 (2017)

  70. A. D’Angelo et al., Jefferson Lab experiment E12-16-010 (2016)

  71. R. Gothe et al., Jefferson Lab experiment E12-09-003 (2009)

Download references

Author information

Authors and Affiliations

  1. Thomas Jefferson National Accelerator Facility, Newport News, VA, 23606, USA

    Volker D. Burkert

Authors
  1. Volker D. Burkert
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Volker D. Burkert.

Additional information

This article belongs to the Topical Collection “NSTAR 2017 - The International Workshop on the Physics of Excited Nucleons”.

Volker D. Burkert: for the CLAS collaboration.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Burkert, V.D. N\(^*\) Experiments and Their Impact on Strong QCD Physics. Few-Body Syst 59, 57 (2018). https://doi.org/10.1007/s00601-018-1378-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1007/s00601-018-1378-7

Search

Navigation