Advertisement

Czechoslovak Journal of Physics

, Volume 55, Supplement 1, pp A109–A118 | Cite as

The spin program with CLAS at JLab

  • R. C. Minehart
  • CLAS Collaboration
Spin Physics in Particle Interactions
  • 15 Downloads

Abstract

We report on the status of an extensive program to study the scattering of longitudinally polarized electrons from longitudinally polarized NH3 and ND3 targets using the CLAS detector at JLab. The data span a range inQ 2 from 0.05–4.5 (GeV/c)2 and a range inW, the γ* N invariant mass, up to about 3 GeV. With the excellent particle identification available with the CLA, both inclusive and exclusive scattering can be studied. The experimental techniques are reviewed and some preliminary results are presented. This paper focuses on extraction of the spin structure functiongg 1 for the proton and the deuteron.

PACS

13.40.Gp 13.60.Hb 14.20.Dh 

References

  1. [1]
    E. Bloom, and F. Gilman: Phys. Rev. D14 (1971) 1829.Google Scholar
  2. [2]
    J. Ashman et al.: Phys. Lett.B206 (1988) 364.CrossRefADSGoogle Scholar
  3. [3]
    G. Baum et al.: Phys. Rev. Lett.51 (1983) 1135.CrossRefADSGoogle Scholar
  4. [4]
    B. Adeva et al.: Phys. Lett. B302 (1993) 533.CrossRefADSGoogle Scholar
  5. [5]
    S. Gerasimov: Yad. Fiz.2 (1965) 598.Google Scholar
  6. [6]
    S. Drell and A. Hearn: Phys. Rev. Lett.16 (1966) 908.CrossRefADSGoogle Scholar
  7. [7]
    X. Ji, C.-W. Kao, and J. Osborne: Phys. Lett B472 (2000) 1.CrossRefADSGoogle Scholar
  8. [8]
    V. D. Burkert and Z. Li: Phys. Rev. D47 (1993) 46.CrossRefADSGoogle Scholar
  9. [9]
    D. Drechsel et al.: Phys. Rev. D63 (2001) 114010.CrossRefADSGoogle Scholar
  10. [10]
    B. A. Mecking et al.: Nucl. Inst. & Meth.503 (2003) 513.CrossRefADSGoogle Scholar
  11. [11]
    R. Fatemi et al.: Phys. Rev. Lett.91 (2003 222002CrossRefADSGoogle Scholar
  12. [12]
    J. Yun et al.: Phys. Rev. C67 (2003) 055204.CrossRefADSGoogle Scholar
  13. [13]
    P. L. Anthony et al.: Phys. Lett. B553 (2003) 18; P.M. King: SLAC-PUB-9741.CrossRefADSGoogle Scholar
  14. [14]
    M.-I. Niculescu et al.: Phys. Rev. Lett.85 (2000) 1182.CrossRefADSGoogle Scholar
  15. [15]
    F. E. Close: Phys. Lett.43 (1973) 422.Google Scholar
  16. [16]
    F. E. Close:At Introduction to Quarks and Parton, Academic Press, London 1979.Google Scholar
  17. [17]
    R. D. Carlitz: Phy. Lett. B58 (1975) 345.CrossRefGoogle Scholar
  18. [18]
    G. Farrar and D. Jackson: Phys. Rev. Lett.35 (1975) 1416.CrossRefGoogle Scholar
  19. [19]
    N. Isgur: Phys. Rev D59 (1999) 034013.CrossRefADSGoogle Scholar
  20. [20]
    F. Close and W. Melnitchouk: Phys. Rev. C68 (2003) 035210.CrossRefADSGoogle Scholar
  21. [21]
    K. Abe et al.: Phys. Rev. D58 (1998) 112003.CrossRefGoogle Scholar
  22. [22]
    J. Soffer and O. V. Teryaev: Phys. Rev. D51 (1993) 25; Phys. Lett. B545 (2002) 323.CrossRefADSGoogle Scholar
  23. [23]
    V. D. Burkert, and B. L. Ioffe: Phys. Lett. B296 (1992) 223; J. Exp. Theor. Phys.78 (1994) 619.CrossRefADSGoogle Scholar

Copyright information

© Institute of Physics, Acad. Sci. CR 2005

Authors and Affiliations

  • R. C. Minehart
    • 1
  • CLAS Collaboration
    • 1
  1. 1.Physics DepartmentUniversity of VirginiaCharlottesvilleUSA

Personalised recommendations