Nuclear physics with a medium-energy Electron-Ion Collider

  • A. AccardiEmail author
  • V. Guzey
  • A. Prokudin
  • C. Weiss


A polarized ep/eA collider (Electron-Ion Collider, or EIC) with variable center-of-mass energy √s ∼ 20–70 GeV and luminosity ∼1034 cm−2 s−1 would be uniquely suited to address several outstanding questions of Quantum Chromodynamics (QCD) and the microscopic structure of hadrons and nuclei: i) the three-dimensional structure of the nucleon in QCD (sea quark and gluon spatial distributions, orbital motion, polarization, correlations); ii) the fundamental color fields in nuclei (nuclear parton densities, shadowing, coherence effects, color transparency); iii) the conversion of color charge to hadrons (fragmentation, parton propagation through matter, in-medium jets). We briefly review the conceptual aspects of these questions and the measurements that would address them, emphasizing the qualitatively new information that could be obtained with the collider. Such a medium-energy EIC could be realized at Jefferson Lab after the 12GeV Upgrade (MEIC), or at Brookhaven National Lab as the low-energy stage of eRHIC.


Color Charge HERMES Collaboration Nucleon Wave Function Nucleon Structure Function Nuclear Gluon 
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  1. 1.
    U.S. Department of Energy Office of Science Nuclear Science Advisory Committee’s December 2007 Long Range Plan The Frontiers of Nuclear Science available at:
  2. 2.
    Report on the Joint BNL/INT/JLab Program Gluons and the quark sea at high energies: Distributions, polarization, tomography, Institute for Nuclear Theory, Seattle, WA, September 13 -- November 19, 2010, edited by D. Boer, M. Diehl, R. Milner, R. Venugopalan, W. Vogelsang, arXiv:1108.1713 [nucl-th], see also presentations and materials at:
  3. 3.
    L.W. Whitlow, E.M. Riordan, S. Dasu, S. Rock, A. Bodek, Phys. Lett. B 282, 475 (1992) and references therein.ADSCrossRefGoogle Scholar
  4. 4.
    D. Higinbotham, W. Melnitchouk, A.W. Thomas, J. Phys.: Conf. Ser. 299, 011001 (2011).CrossRefGoogle Scholar
  5. 5.
    Conceptual Design Report (CDR) for the Science and Experimental Equipment for the 12 GeV Upgrade of CEBAF (Prepared for the DOE Science Review, April 6--8, 2005), edited by J. Arrington (Jefferson Lab, 2005) available at:
  6. 6.
    M. Klein, R. Yoshida, Prog. Part. Nucl. Phys. 61, 343 (2008).ADSCrossRefGoogle Scholar
  7. 7.
    H. Abramowicz, A. Caldwell, Rev. Mod. Phys. 71, 1275 (1999).ADSCrossRefGoogle Scholar
  8. 8.
    M. Burkardt, A. Miller, W.D. Nowak, Rep. Prog. Phys. 73, 016201 (2010).ADSCrossRefGoogle Scholar
  9. 9.
    S.E. Kuhn, J.-P. Chen, E. Leader, Prog. Part. Nucl. Phys. 63, 1 (2009).ADSCrossRefGoogle Scholar
  10. 10.
    V. Barone, F. Bradamante, A. Martin, Prog. Part. Nucl. Phys. 65, 267 (2000).ADSCrossRefGoogle Scholar
  11. 11.
    G. Bunce, N. Saito, J. Soffer, W. Vogelsang, Ann. Rev. Nucl. Part. Sci. 50, 525 (2000).ADSCrossRefGoogle Scholar
  12. 12.
    In the interest of a concise summary we refer here mostly to review articles of the individual physics topics. References to original results and further information on the individual topics can be found in the cited literature.Google Scholar
  13. 13.
    For information and updates on Lattice QCD, see resources at:
  14. 14.
    S. Kumano, Phys. Rep. 303, 183 (1998).ADSCrossRefGoogle Scholar
  15. 15.
    G.T. Garvey, J.-C. Peng, Prog. Part. Nucl. Phys. 47, 203 (2001).ADSCrossRefGoogle Scholar
  16. 16.
    S.J. Brodsky, arXiv:1202.5338 [hep-ph].
  17. 17.
    HERMES Collaboration (A. Airapetian et al.), Phys. Lett. B 666, 446 (2008).ADSCrossRefGoogle Scholar
  18. 18.
    D. de Florian, R. Sassot, M. Stratmann, W. Vogelsang, Prog. Part. Nucl. Phys. 67, 251 (2012).ADSCrossRefGoogle Scholar
  19. 19.
    M. Diehl, Phys. Rep. 388, 41 (2003).ADSCrossRefGoogle Scholar
  20. 20.
    A.V. Belitsky, A.V. Radyushkin, Phys. Rep. 418, 1 (2005).ADSCrossRefGoogle Scholar
  21. 21.
    S. Boffi, B. Pasquini, Riv. Nuovo Cimento 30, 387 (2007).Google Scholar
  22. 22.
    L. Frankfurt, M. Strikman, C. Weiss, Ann. Rev. Nucl. Part. Sci. 55, 403 (2005).ADSCrossRefGoogle Scholar
  23. 23.
    M. Anselmino et al., Eur. Phys. J. A 47, 35 (2011).ADSCrossRefGoogle Scholar
  24. 24.
    U. D’Alesio, F. Murgia, Prog. Part. Nucl. Phys. 61, 394 (2008).ADSCrossRefGoogle Scholar
  25. 25.
    G. Piller, W. Weise, Phys. Rep. 330, 1 (2000).ADSCrossRefGoogle Scholar
  26. 26.
    N. Armesto, J. Phys. G 32, R367 (2006).CrossRefGoogle Scholar
  27. 27.
    L. Frankfurt, V. Guzey, M. Strikman, Phys. Rep. 512, 255 (2012).ADSCrossRefGoogle Scholar
  28. 28.
    F. Gelis, E. Iancu, J. Jalilian-Marian, R. Venugopalan, Ann. Rev. Nucl. Part. Sci. 60, 463 (2010).ADSCrossRefGoogle Scholar
  29. 29.
    P.R. Norton, Rep. Prog. Phys. 66, 1253 (2003).ADSCrossRefGoogle Scholar
  30. 30.
    D.F. Geesaman, K. Saito, A.W. Thomas, Ann. Rev. Nucl. Part. Sci. 45, 337 (1995).ADSCrossRefGoogle Scholar
  31. 31.
    E665 Collaboration (M.R. Adams et al.), Phys. Rev. Lett. 74, 1525 (1995).ADSCrossRefGoogle Scholar
  32. 32.
    HERMES Collaboration (K. Ackerstaff et al.), Phys. Rev. Lett. 82, 3025 (1999).ADSCrossRefGoogle Scholar
  33. 33.
    HERMES Collaboration (A. Airapetian et al.), Phys. Rev. Lett. 90, 052501 (2003).ADSCrossRefGoogle Scholar
  34. 34.
    A. Accardi, F. Arleo, W.K. Brooks, D. D’Enterria, V. Muccifora, Riv. Nuovo Cimento 32, 439 (2010).Google Scholar
  35. 35.
    PHENIX Collaboration (S.S. Adler et al.), Phys. Rev. Lett. 96, 032301 (2006).ADSCrossRefGoogle Scholar
  36. 36.
    STAR Collaboration (B.I. Abelev et al.), Phys. Rev. Lett. 98, 192301 (2007) 106.ADSCrossRefGoogle Scholar
  37. 37.
    PHENIX Collaboration (A. Adare et al.), Phys. Rev. Lett. 98, 172301 (2007).ADSCrossRefGoogle Scholar
  38. 38.
    For further information and updates on the EIC machine designs, see: (JLab) and (BNL).
  39. 39.
    For a summary of the projected luminosity of the different EIC designs as of August 2010, see:
  40. 40.
    For information and updates on the LHeC project, see:
  41. 41.
    A. Lehrach et al., J. Phys. Conf. Ser. 295, 012156 (2011) for a recent summary of the ENC project.ADSCrossRefGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Hampton UniversityHamptonUSA
  2. 2.Jefferson LabNewport NewsUSA

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