Few-Body Systems

, 59:57 | Cite as

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

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  1. NSTAR 2017

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.

References

  1. 1.
    F.W. Dyson, A.S. Eddington, C. Davidson, Philos. Trans. R. Soc. Lond. A 220, 291 (1920)ADSCrossRefGoogle Scholar
  2. 2.
    A. Einstein, Ann. Phys. 49(7), 769 (1916) [Annalen Phys. 14, 517 (2005)]Google Scholar
  3. 3.
    H.L. Anderson, E. Fermi, E.A. Long, D.E. Nagle, Phys. Rev. 85, 936 (1952)ADSCrossRefGoogle Scholar
  4. 4.
    M. Gell-Mann, A schematic model of baryons and mesons. Phys. Lett. 8, 214 (1964)ADSCrossRefGoogle Scholar
  5. 5.
    G. Zweig, An SU(3) model for strong interaction symmetry and its breaking, CERN-TH-401 and 412 (1964)Google Scholar
  6. 6.
    O.W. Greenberg, Phys. Rev. Lett. 13, 598 (1964)ADSCrossRefGoogle Scholar
  7. 7.
    A. Bazavov et al., Phys. Rev. Lett. 113(7), 072001 (2014)ADSCrossRefGoogle Scholar
  8. 8.
    A. Bazavov et al., Phys. Lett. B 737, 210 (2014)ADSCrossRefGoogle Scholar
  9. 9.
    V.D. Burkert, T.S.H. Lee, Int. J. Mod. Phys. E 13, 1035 (2004)ADSCrossRefGoogle Scholar
  10. 10.
    C. Patrignani et al. [Particle Data Group], Chin. Phys. C 40(10), 100001 (2016)Google Scholar
  11. 11.
    J.J. Dudek, R.G. Edwards, Phys. Rev. D 85, 054016 (2012)ADSCrossRefGoogle Scholar
  12. 12.
    N. Suzuki et al., Phys. Rev. Lett. 104, 042302 (2010)ADSCrossRefGoogle Scholar
  13. 13.
    E. Klempt, J.M. Richard, Rev. Mod. Phys. 82, 1095 (2010)ADSCrossRefGoogle Scholar
  14. 14.
    L. Tiator, D. Drechsel, S.S. Kamalov, M. Vanderhaeghen, Eur. Phys. J. ST 198, 141 (2011)CrossRefGoogle Scholar
  15. 15.
    I.G. Aznauryan, V.D. Burkert, Prog. Part. Nucl. Phys. 67, 1 (2012)ADSCrossRefGoogle Scholar
  16. 16.
    I.G. Aznauryan et al., Int. J. Mod. Phys. E 22, 1330015 (2013)ADSCrossRefGoogle Scholar
  17. 17.
    V. Crede, W. Roberts, Rept. Prog. Phys. 76, 076301 (2013)ADSCrossRefGoogle Scholar
  18. 18.
    V.I. Mokeev et al., Phys. Rev. C 93(2), 025206 (2016)ADSCrossRefGoogle Scholar
  19. 19.
    V.D. Burkert, C. D. Roberts, arXiv:1710.02549 [nucl-ex]
  20. 20.
    S. Capstick, W. Roberts, Phys. Rev. D 49, 4570 (1994)ADSCrossRefGoogle Scholar
  21. 21.
    M. Dugger et al., Phys. Rev. Lett. 96, 062001 (2006) [Phys. Rev. Lett. 96, 169905 (2006)]Google Scholar
  22. 22.
    M. Dugger et al., [CLAS Collaboration]. Phys. Rev. C 79, 065206 (2009)Google Scholar
  23. 23.
    M. Williams et al., [CLAS Collaboration]. Phys. Rev. C 80, 045213 (2009)Google Scholar
  24. 24.
    M. Williams et al., [CLAS Collaboration]. Phys. Rev. C 80, 065209 (2009)Google Scholar
  25. 25.
    M. Williams et al., [CLAS Collaboration]. Phys. Rev. C 80, 065208 (2009)Google Scholar
  26. 26.
    R.K. Bradford et al., [CLAS Collaboration]. Phys. Rev. C 75, 035205 (2007)Google Scholar
  27. 27.
    R. Bradford et al., [CLAS Collaboration]. Phys. Rev. C 73, 035202 (2006)Google Scholar
  28. 28.
    M.E. McCracken et al., [CLAS Collaboration]. Phys. Rev. C 81, 025201 (2010)Google Scholar
  29. 29.
    B. Dey et al., [CLAS Collaboration]. Phys. Rev. C 82, 025202 (2010)Google Scholar
  30. 30.
    J.W.C. McNabb et al., [CLAS Collaboration]. Phys. Rev. C 69, 042201 (2004)Google Scholar
  31. 31.
    C.A. Paterson et al., [CLAS Collaboration], Phys. Rev. C 93(6), 065201 (2016)Google Scholar
  32. 32.
    N. Compton et al., [CLAS Collaboration], Phys. Rev. C 96(6), 065201 (2017)Google Scholar
  33. 33.
    D. Ho et al., [CLAS Collaboration], Phys. Rev. Lett. 118(24), 242002 (2017)Google Scholar
  34. 34.
    A.V. Anisovich et al., [CLAS Collaboration]. Phys. Lett. B 771, 142 (2017)Google Scholar
  35. 35.
    A. Anisovich, R. Beck, E. Klempt, V. Nikonov, A. Sarantsev, U. Thoma, Eur. Phys. J. A 48, 15 (2012)ADSCrossRefGoogle Scholar
  36. 36.
    B. Julia-Diaz, T.-S.H. Lee, A. Matsuyama, T. Sato, Phys. Rev. C 76, 065201 (2007)ADSCrossRefGoogle Scholar
  37. 37.
    D. Rönchen et al., Eur. Phys. J. A 50(6), 101 (2014)ADSCrossRefGoogle Scholar
  38. 38.
    H. Kamano, S.X. Nakamura, T.-S.H. Lee, T. Sato, Phys. Rev. C 88(3), 035209 (2013)ADSCrossRefGoogle Scholar
  39. 39.
    A.V. Anisovich et al., Phys. Lett. B 766, 357 (2017)ADSCrossRefGoogle Scholar
  40. 40.
    H. Seraydaryan et al. [CLAS Collaboration], Phys. Rev. C 89(5), 055206 (2014)Google Scholar
  41. 41.
    B. Dey et al. [CLAS Collaboration], Phys. Rev. C 89(5), 055208 (2014)Google Scholar
  42. 42.
    P. Collins et al., Phys. Lett. B 773, 112 (2017)ADSCrossRefGoogle Scholar
  43. 43.
    B.C. Liu, B.S. Zou, Phys. Rev. Lett. 96, 042002 (2006)ADSCrossRefGoogle Scholar
  44. 44.
    R.F. Lebed, Phys. Rev. D 92(11), 114030 (2015)ADSCrossRefGoogle Scholar
  45. 45.
    K. Joo et al., [CLAS Collaboration]. Phys. Rev. Lett. 88, 122001 (2002)Google Scholar
  46. 46.
    M. Ungaro et al., [CLAS Collaboration]. Phys. Rev. Lett. 97, 112003 (2006)Google Scholar
  47. 47.
    V.V. Frolov et al., Phys. Rev. Lett. 82, 45 (1999)ADSCrossRefGoogle Scholar
  48. 48.
    I.G. Aznauryan et al., [CLAS Collaboration]. Phys. Rev. C 80, 055203 (2009)Google Scholar
  49. 49.
    I.G. Aznauryan et al., [CLAS Collaboration]. Phys. Rev. C 78, 045209 (2008)Google Scholar
  50. 50.
    V.I. Mokeev et al., [CLAS Collaboration]. Phys. Rev. C 86, 035203 (2012)Google Scholar
  51. 51.
    H. Denizli et al., [CLAS Collaboration]. Phys. Rev. C 76, 015204 (2007)Google Scholar
  52. 52.
    C.S. Armstrong et al., [Jefferson Lab E94014 Collaboration]. Phys. Rev. D 60, 052004 (1999)Google Scholar
  53. 53.
    H. Egiyan et al., [CLAS Collaboration]. Phys. Rev. C 73, 025204 (2006)Google Scholar
  54. 54.
    K. Park et al., [CLAS Collaboration]. Phys. Rev. C 77, 015208 (2008)Google Scholar
  55. 55.
    K. Park et al., [CLAS Collaboration]. Phys. Rev. C 91, 045203 (2015)Google Scholar
  56. 56.
    I.G. Aznauryan, V.D. Burkert, Phys. Rev. C 92(3), 035211 (2015)ADSCrossRefGoogle Scholar
  57. 57.
    I.G. Aznauryan, V.D. Burkert, arXiv:1603.06692 [hep-ph]
  58. 58.
    J. Segovia, I.C. Cloet, C.D. Roberts, S.M. Schmidt, Few Body Syst. 55, 1185 (2014)ADSCrossRefGoogle Scholar
  59. 59.
    H.R. Grigoryan, T.-S.H. Lee, H.U. Yee, Phys. Rev. D 80, 055006 (2009)ADSCrossRefGoogle Scholar
  60. 60.
    J. Segovia et al., Phys. Rev. Lett. 115(17), 171801 (2015)ADSCrossRefGoogle Scholar
  61. 61.
    I.V. Anikin, V.M. Braun, N. Offen, Phys. Rev. D 92(1), 014018 (2015)ADSCrossRefGoogle Scholar
  62. 62.
    I.T. Obukhovsky et al., Phys. Rev. D 84, 014004 (2011)ADSCrossRefGoogle Scholar
  63. 63.
    T. Bauer, S. Scherer, L. Tiator, Phys. Rev. C 90(1), 015201 (2014)ADSCrossRefGoogle Scholar
  64. 64.
    L. Tiator, M. Vanderhaeghen, Phys. Lett. B 672, 344 (2009)ADSCrossRefGoogle Scholar
  65. 65.
    Z p Li, V. Burkert, Z j Li, Phys. Rev. D 46, 70 (1992)ADSCrossRefGoogle Scholar
  66. 66.
    R.G. Moorhouse, Phys. Rev. Lett. 16, 772 (1966)ADSCrossRefGoogle Scholar
  67. 67.
    I.G. Aznauryan, V. Burkert, Phys. Rev. C 95(6), 065207 (2017)ADSCrossRefGoogle Scholar
  68. 68.
    E. Santopinto, M.M. Giannini, Phys. Rev. C 86, 065202 (2012)ADSCrossRefGoogle Scholar
  69. 69.
    E.L. Isupov et al., [CLAS Collaboration], Phys. Rev. C 96(2), 025209 (2017)Google Scholar
  70. 70.
    A. D’Angelo et al., Jefferson Lab experiment E12-16-010 (2016)Google Scholar
  71. 71.
    R. Gothe et al., Jefferson Lab experiment E12-09-003 (2009)Google Scholar

Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Thomas Jefferson National Accelerator FacilityNewport NewsUSA

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