First measurements of the 16O(e, e'pn)14N reaction

  • D. G. Middleton
  • J. R. M. Annand
  • C. Barbieri
  • P. Barneo
  • H. P. Blok
  • R. Böhm
  • M. O. Distler
  • J. Friedrich
  • C. Giusti
  • D. I. Glazier
  • P. Grabmayr
  • T. Hehl
  • J. Heim
  • W. H. A. Hesselink
  • E. Jans
  • M. Kohl
  • L. Lapikás
  • I. J. D. MacGregor
  • I. Martin
  • J. C. McGeorge
  • H. Merkel
  • F. Moschini
  • G. Rosner
  • M. Seimetz
  • H. de Vries
  • Th. Walcher
  • D. P. Watts
  • B. Zihlmann
Nuclear Structure and Reactions

Abstract.

This paper reports on the first measurement of the 16O(e, e'pn)14N reaction. Data were measured in kinematics centred on a super-parallel geometry at energy and momentum transfers of 215MeV and 316MeV/c. The experimental resolution was sufficient to distinguish groups of states in the residual nucleus but not good enough to separate individual states. The data show a strong dependence on missing momentum and this dependence appears to be different for two groups of states in the residual nucleus. Theoretical calculations of the reaction using the Pavia code do not reproduce the shape or the magnitude of the data.

PACS.

13.75.Cs Nucleon-nucleon interactions (including antinucleons, deuterons, etc.) 21.30.Fe Forces in hadronic systems and effective interactions 25.30.Fj Inelastic electron scattering to continuum 

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References

  1. 1.
    H. Müther, A. Polls, Prog. Part. Nucl. Phys. 45, 243 (2000).CrossRefADSGoogle Scholar
  2. 2.
    C. Barbieri, W.H. Dickhoff, Prog. Part. Nucl. Phys. 52, 337 (2004).Google Scholar
  3. 3.
    P. Grabmayr, Prog. Part. Nucl. Phys. 29, 251 (1992).CrossRefADSGoogle Scholar
  4. 4.
    L. Lapikas, Nucl. Phys. A 553, 297 (1993).CrossRefADSGoogle Scholar
  5. 5.
    J. Wessling, Phys. Rev. C 55, 2773 (1997).CrossRefADSGoogle Scholar
  6. 6.
    C. Barbieri, Phys. Rev. C. 70, 014606 (2004).CrossRefADSGoogle Scholar
  7. 7.
    C. Giusti, Phys. Rev. C 60, 054608 (1999).CrossRefADSGoogle Scholar
  8. 8.
    C. Giusti, Eur. Phys. J. A 17, 419 (2003).CrossRefADSGoogle Scholar
  9. 9.
    T. Neff, H. Feldmeier, Short-range repulsive and tensor correlations in nuclei, Technical Report, GSI, 2001.Google Scholar
  10. 10.
    J. Levinger, Phys. Rev. 84, 43 (1951).MATHCrossRefADSGoogle Scholar
  11. 11.
    K. Gottfried, Nucl. Phys. 5, 557 (1958). CrossRefGoogle Scholar
  12. 12.
    S. Boffi, Electromagnetic Response of Atomic Nuclei (Oxford University Press, 1996).Google Scholar
  13. 13.
    J. Ryckebusch, Phys. Rev. C 64, 044606 (2001).CrossRefADSGoogle Scholar
  14. 14.
    J. Ryckebusch, Nucl. Phys. A 624, 581 (1997).CrossRefADSGoogle Scholar
  15. 15.
    M. Schwamb, Eur. Phys. J. A 17, 7 (2003).CrossRefADSGoogle Scholar
  16. 16.
    M. Schwamb, Eur. Phys. J. A 20, 233 (2004).CrossRefADSGoogle Scholar
  17. 17.
    A. Zondervan, Nucl. Phys. A 587, 697 (1995).CrossRefADSGoogle Scholar
  18. 18.
    L.J.H.M. Kester, Phys. Rev. Lett. 74, 1712 (1995).CrossRefADSGoogle Scholar
  19. 19.
    C.J.G. Onderwater, Phys. Rev. Lett. 78, 4893 (1997).CrossRefADSGoogle Scholar
  20. 20.
    C.J.G. Onderwater, Phys. Rev. Lett. 81, 2213 (1998).CrossRefADSGoogle Scholar
  21. 21.
    R. Starink, Phys. Lett. B 474, 33 (2000).CrossRefADSGoogle Scholar
  22. 22.
    D. Rohe, Phys. Rev. Lett. 93, 182501 (2004).CrossRefADSGoogle Scholar
  23. 23.
    G. Rosner, Prog. Part. Nucl. Phys. 44, 99 (2000).CrossRefADSGoogle Scholar
  24. 24.
    J. Ryckebusch, W. Van Nespen, Eur. Phys J. A 20, 435 (2004).CrossRefADSGoogle Scholar
  25. 25.
    D.L. Groep, Phys. Rev. C 63, 014005 (2000).CrossRefADSGoogle Scholar
  26. 26.
    I.J.D. MacGregor, Nucl. Phys. A 533, 269 (1991).CrossRefADSGoogle Scholar
  27. 27.
    L. Isaksson, Phys. Rev. Lett. 83, 3146 (1999).CrossRefADSGoogle Scholar
  28. 28.
    K.R. Garrow, Phys. Rev. C. 64, 064602 (2001).CrossRefADSGoogle Scholar
  29. 29.
    C. Giusti, Phys. Rev. C 57, 1691 (1998).CrossRefADSGoogle Scholar
  30. 30.
    R. Machleidt, Adv. Nucl. Phys. 19, 1 (1989).Google Scholar
  31. 31.
    H. Herminghaus, Nucl. Instrum. Methods 138, 1 (1976).CrossRefGoogle Scholar
  32. 32.
    N. Voegler, Nucl. Instrum. Methods 198, 293 (1982).CrossRefGoogle Scholar
  33. 33.
    S. Sirca, The axial form factor of the nucleon from coincident pion electro-production at low $Q^2$, PhD Thesis, University of Ljubljana, 1999.Google Scholar
  34. 34.
    http://wwwa1.kph.uni-mainz.de/a1/target.html.Google Scholar
  35. 35.
    K.I. Blomqvist, Nucl. Instrum. Methods Phys. Res. A 403, 263 (1998).CrossRefADSGoogle Scholar
  36. 36.
    A. Pellegrino, Nucl. Instrum. Methods Phys. Res. A 437, 188 (1999).CrossRefADSGoogle Scholar
  37. 37.
    P. Grabmayr, Nucl. Instrum. Methods Phys. Res. A 402, 85 (1998).CrossRefADSGoogle Scholar
  38. 38.
    R.M. Edelstein, Nucl. Instrum. Methods 100, 355 (1972).CrossRefADSGoogle Scholar
  39. 39.
    R.A. Cecil, Nucl. Instrum. Methods 161, 439 (1979).CrossRefGoogle Scholar
  40. 40.
    D. Middleton, First study of the $(e,e'pn)$ reaction, PhD Thesis, University of Glasgow, 2003.Google Scholar
  41. 41.
    R.O. Owens, Nucl. Instrum. Methods Phys. Res. A 288, 574 (1990).CrossRefADSGoogle Scholar
  42. 42.
    M. Distler, Data acquisition and analysis for the 3-spectrometer-setup at MAMI, in Proceedings of the 12th IEEE Real Time Congress on Nuclear and Plasma Sciences, 2001, ISBN 84-699-5463-6.Google Scholar
  43. 43.
    L. Mo, Y. Tsai, Rev. Mod. Phys. 41, 205 (1969).CrossRefADSGoogle Scholar
  44. 44.
    J. Ryckebusch, Phys. Rev. C 61, 021603 (2000).CrossRefADSGoogle Scholar
  45. 45.
    D.P. Watts, Phys. Rev. C 62, 014616 (2000).CrossRefADSGoogle Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2006

Authors and Affiliations

  • D. G. Middleton
    • 1
  • J. R. M. Annand
    • 1
  • C. Barbieri
    • 2
  • P. Barneo
    • 3
  • H. P. Blok
    • 3
  • R. Böhm
    • 4
  • M. O. Distler
    • 4
  • J. Friedrich
    • 4
  • C. Giusti
    • 5
  • D. I. Glazier
    • 1
  • P. Grabmayr
    • 6
  • T. Hehl
    • 6
  • J. Heim
    • 6
  • W. H. A. Hesselink
    • 3
    • 6
  • E. Jans
    • 3
  • M. Kohl
    • 4
  • L. Lapikás
    • 3
  • I. J. D. MacGregor
    • 1
  • I. Martin
    • 6
  • J. C. McGeorge
    • 1
  • H. Merkel
    • 4
  • F. Moschini
    • 6
  • G. Rosner
    • 1
  • M. Seimetz
    • 4
  • H. de Vries
    • 3
  • Th. Walcher
    • 4
  • D. P. Watts
    • 1
    • 8
  • B. Zihlmann
    • 3
    • 7
  1. 1.Department of Physics and AstronomyUniversity of GlasgowUK
  2. 2.Gesellschaft für SchwerionenforschungDarmstadtGermany
  3. 3.NIKHEFAmsterdamThe Netherlands
  4. 4.Institut für KernphysikUniversität MainzGermany
  5. 5.Sezione di PaviaDipartimento di Fisica Nucleare e Teorica dell'Università degli Studi di Pavia and Istituto Nazionale di Fisica NuclearePaviaItaly
  6. 6.Physikalisches InstitutUniversität TübingenGermany
  7. 7.Vrije UniversiteitAmsterdamThe Netherlands
  8. 8.School of PhysicsUniversity of EdinburghUK

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