Skip to main content

Opportunities with Drell-Yan scattering: Probing sea quarks in the nucleon and nuclei

Abstract.

The large ¯(x)/¯(x) ratio observed by Fermilab E866/NuSea convincingly demonstrated that the sea is not simply a result of pQCD. Moreover, meson cloud models also failed to explain fully the observed kinematic dependence. The Drell-Yan mechanism offers a unique, selective probe of antiquarks in the nucleon. Fermilab has approved a new Drell-Yan experiment, E906, that will exploit this feature to probe ¯(x)/¯(x) by measuring the ratio of cross-sections for the proton-induced Drell-Yan process on hydrogen to deuterium. When the nucleon is contained in a nucleus, the nucleon's parton distributions should to be modified; although this effect was not seen in the sea quark distributions obtained by Fermilab E772 with Drell-Yan scattering. The upcoming E906 Drell-Yan experiment will provide much more precise measurements over a wider kinematic range in order to guide and challenge the theoretical models.

This is a preview of subscription content, access via your institution.

References

  1. S.D. Drell, T.M. Yan, Phys. Rev. Lett. 25, 316 (1970).

    Article  ADS  Google Scholar 

  2. K. Gottfried, Phys. Rev. Lett. 18, 1174 (1967).

    Article  ADS  Google Scholar 

  3. P. Amaudruz, M. Arneodo, A. Arvidson, B. Badelek, G. Baum, J. Beaufays, I.G. Bird, M. Botje, C. Broggini, W. Brückner, Phys. Rev. Lett. 66, 2712 (1991).

    Article  ADS  Google Scholar 

  4. M. Arneodo, A. Arvidson, B. Badelek, M. Ballintijn, G. Baum, J. Beaufays, I.G. Bird, P. Björkholm, M. Botje, C. Broggini, Phys. Rev. D 50, R1 (1994).

  5. S.D. Ellis, W.J. Stirling, Phys. Lett. B 256, 258 (1991).

    Article  ADS  Google Scholar 

  6. NA51 Collaboration (A. Baldit), Phys. Lett. B 332, 244 (1994).

    Article  ADS  Google Scholar 

  7. J. Pumplin, JHEP 07, 012 (2002) hep-ph/0201195.

    Article  ADS  Google Scholar 

  8. A.D. Martin, R.G. Roberts, W.J. Stirling, R.S. Thorne, Eur. Phys. J. C 39, 155 (2005) hep-ph/0411040.

    Article  ADS  Google Scholar 

  9. M. Gluck, E. Reya, A. Vogt, Eur. Phys. J. C 5, 461 (1998) hep-ph/9806404.

    Article  ADS  Google Scholar 

  10. FNAL E866/NuSea Collaboration (E.A. Hawker), Phys. Rev. Lett. 80, 3715 (1998) hep-ex/9803011.

    Article  ADS  Google Scholar 

  11. FNAL E866/NuSea Collaboration (R.S. Towell), Phys. Rev. D 64, 052002 (2001) hep-ex/0103030.

    Article  ADS  Google Scholar 

  12. E906/Drell-Yan Collaboration (P. Reimer, D. Geesaman), Experiment update to Fermilab PAC (2006).

  13. E866/NuSea Collaboration (J.C. Peng), Phys. Rev. D 58, 092004 (1998) hep-ph/9804288.

    Article  ADS  Google Scholar 

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

    Article  ADS  Google Scholar 

  15. D.F. Geesaman, K. Saito, A.W. Thomas, Annu. Rev. Nucl. Part. Sci. 45, 337 (1995).

    Article  ADS  Google Scholar 

  16. S.A. Kulagin, R. Petti, Nucl. Phys. A 765, 126 (2006) hep-ph/0412425.

    Article  ADS  Google Scholar 

  17. D.M. Alde, Phys. Rev. Lett. 64, 2479 (1990).

    Article  ADS  Google Scholar 

  18. J. Carlson, R. Schiavilla, Rev. Mod. Phys. 70, 743 (1998).

    Article  ADS  Google Scholar 

  19. E.L. Berger, F. Coester, R.B. Wiringa, Phys. Rev. D 29, 398 (1984).

    Article  ADS  Google Scholar 

  20. E.L. Berger, F. Coester, Phys. Rev. D 32, 1071 (1985).

    Article  ADS  Google Scholar 

  21. F. Coester, private communication (2001).

  22. H. Jung, G.A. Miller, Phys. Rev. C 41, 659 (1990).

    Article  ADS  Google Scholar 

  23. G.E. Brown, M. Buballa, Z.B. Li, J. Wambach, Nucl. Phys. A 593, 295 (1995) nucl-th/9410049.

    Article  ADS  Google Scholar 

  24. A.E.L. Dieperink, C.L. Korpa, Phys. Rev. C 55, 2665 (1997) nucl-th/9703025.

    Article  ADS  Google Scholar 

  25. J.R. Smith, G.A. Miller, Phys. Rev. Lett. 91, 212301 (2003) nucl-th/0308048.

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to P. E. Reimer.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Reimer, P.E. Opportunities with Drell-Yan scattering: Probing sea quarks in the nucleon and nuclei. Eur. Phys. J. A 31, 593–596 (2007). https://doi.org/10.1140/epja/i2006-10196-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1140/epja/i2006-10196-3

PACS.

  • 14.20.Dh Protons and neutrons
  • 14.65.Bt Light quarks