Skip to main content
SpringerLink
Log in

Spin physics and more with HERMES

  • Original Paper
  • Published:
The European Physical Journal A - Hadrons and Nuclei Aims and scope Submit manuscript

Abstract.

A review of recent results obtained by the HERMES experiment is given. Inclusive measurements on polarized and unpolarized targets provide precise information on the polarized structure functions g 1 d and g 1 p and the isoscalar unpolarized structure function ratio F 2 A/F 2 d. The geometrical acceptance of the HERMES detector and the good particle identification capabilities allow the study of semi-inclusive reactions as well. Using polarized targets, the polarized quark distribution functions \(\Delta q\) can be extracted as well as a first indication of the transversity distributions \(\delta q\). On unpolarized heavy targets, hadron formation in a nuclear environment is studied. Finally, data on Deeply Virtual Compton Scattering, the hard exclusive electroproduction of real photons, are presented, which are closely linked to the novel framework of Generalised Parton Distributions. For this reaction HERMES has measured the asymmetry main beam charge as well as in-beam spin.

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. HERMES Collaboration (K. Ackerstaff ), Nucl. Instrum. Methods A 417, 230 (1998).

    Google Scholar 

  2. N. Akopov , Nucl. Instrum. Methods A 479, 511 (2002).

    Article  Google Scholar 

  3. E 80 Collaboration (M.J. Alguard ), Phys. Rev. Lett. 37, 1261 (1976)

    Article  Google Scholar 

  4. European Muon Collaboration (J. Ashman ), Phys. Lett. B 206, 364 (1988)

    Article  Google Scholar 

  5. E 142 Collaboration (P.L. Anthony ), Phys. Rev. D 54, 6620 (1996)

    Article  Google Scholar 

  6. Spin Muon Collaboration (B. Adeva ), Phys. Rev. D 58, 112001 (1998).

    Article  Google Scholar 

  7. HERMES Collaboration (K. Ackerstaff ), Phys. Lett. B 404, 383 (1997).

    Article  Google Scholar 

  8. HERMES Collaboration (A. Airapetian ), Phys. Lett. B 442, 484 (1998).

    Article  Google Scholar 

  9. European Muon Collaboration (J.J. Aubert ), Phys. Lett. B 123, 275 (1983).

    Article  Google Scholar 

  10. HERMES Collaboration (A. Airapetian ), DESY-02-091.

  11. H.L. Lai , Eur. Phys. J. C 12, 375 (2000)

    Article  Google Scholar 

  12. HERMES Collaboration (K. Ackerstaff ), Phys. Lett. B 464, 123 (1999).

    Article  Google Scholar 

  13. For the HERMES Collaboration (M. Beckmann), Proceedings of the Workshop on Testing QCD through Spin Observables in Nuclear Targets, Charlottesville, VA, 2002, edited by D.G. Crabb, D.B. Day, J.P. Chen (World Scientific, Singapore, 2003).

  14. V. Barone, A. Drago, P.G. Ratcliffe, Phys. Rep. 359, 1 (2002).

    MATH  Google Scholar 

  15. J. Collins, Nucl. Phys. B 396, 161 (1993).

    Article  Google Scholar 

  16. A.V. Efremov, O.G. Smirnova, L.G. Tkachev, Nucl. Phys. Proc. Suppl. 74, 49 (1999).

    Article  Google Scholar 

  17. HERMES Collaboration (A. Airapetian ), Phys. Rev. Lett. 84, 4047 (2000).

    Article  Google Scholar 

  18. V. Korotkov, W.-D. Nowak, K. Oganessyan, Eur. Phys. J. C 18, 639 (2001).

    Google Scholar 

  19. A. Bialas, in Proceedings of the Topical Conference on Electronuclear Physics with Internal Targets, edited by R.G. Arnold (World Scientific, Singapore, 1989).

  20. HERMES Collaboration (A. Airapetian ), Eur. Phys. J. C 20, 479 (2001).

    Google Scholar 

  21. E. Wang, X.N. Wang, arXiv:hep-ph/0202105.

  22. X. Ji, Phys. Rev. Lett. 78, 610 (1997).

    Article  Google Scholar 

  23. K. Goecke, M.V. Polyakov, M. Vanderhaeghen, Prog. Part. Nucl. Phys. 47, 401 (2001).

    Article  Google Scholar 

  24. A. Belitsky, D. Müller, arXiv:hep-ph/0111032 (2001).

  25. HERMES Collaboration (F. Ellinghaus), arXiv:hep-ex/0207029.

  26. HERMES Collaboration (A. Airapetian ) Phys. Rev. Lett. 87, 182001 (2001).

    Google Scholar 

  27. V.A. Korotkov, W.D. Nowak, Eur. Phys. J. C 23, 455 (2002)

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. II. Physikalisches Institut, Universität Giessen, 35392, Giessen, Germany

    B. Seitz

Authors
  1. B. Seitz
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to B. Seitz.

Additional information

Received: 1 November 2002, Published online: 15 July 2003

PACS:

13.60.Hb Total and inclusive cross-sections (including deep-inelastic processes) - 13.60.Le Meson production - 24.85.+p Quarks, gluons, and QCD in nuclei and nuclear processes - 25.30.Mr Muon scattering (including the EMC effect)

B. Seitz: For the HERMES Collaboration

Rights and permissions

Reprints and permissions

About this article

Cite this article

Seitz, B. Spin physics and more with HERMES. Eur. Phys. J. A 17, 369–374 (2003). https://doi.org/10.1140/epja/i2002-10179-4

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1140/epja/i2002-10179-4

Keywords

Search

Navigation