Advertisement

Il Nuovo Cimento A (1965-1970)

, Volume 58, Issue 3, pp 219–231 | Cite as

The dominant role of the nuclear surface in (p, t) reactions

  • M. F. Werby
  • W. H. Bassichis
  • M. R. Strayer
Article
  • 18 Downloads

Summary

It is demonstrated in finite-range DWBA analyses of (p, t) reactions, utilizing realistic triton wave functions, that the transfer only occurs in the extreme surface of the nucleus. This explains in part the success of recent (p, t) analyses which employed quite simple two-neutron transfer form factors. The necessary enhancement of the bound-state wave functions was obtained by employing a «large geometry» in the half-separation energy method.

Riassunto

Si dimostra nelle analisi DWBA ad intervalli finiti delle reazioni (p, t), utilizzando funzioni d’onda reali del tritone, che il trasferimento si verifica solo nell’estrema superficie del nucleo. Questo spiega in parte il successo delle recenti analisi (p, t) che hanno fatto uso di fattori di forma abbastanza semplici per il trasferimento di due neutroni. È stato ottenuto l’accrescimento necessario delle funzioni d’onda di stato legato servendosi di una «geometria allargata» nel metodo dell’energia di semiseparazione.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Reference

  1. (1).
    L. L. Lee, J. P. Schiffer, B. Zeidman, G. R. Satchler, R. M. Drisko andR. H. Bassel:Phys. Rev.,136, 971 (1964).CrossRefADSGoogle Scholar
  2. (2).
    N. Austern:Direct Nuclear Reaction Theories (New York, N. Y., 1970).Google Scholar
  3. (3).
    N. K. Glendenning:Nuclear Spectroscopy and Reactions, Part D, edited byJ. Cerny (New York, N. Y., 1974).Google Scholar
  4. (4).
    B. F. Bayman:Phys. Rev. Lett.,25, 1768 (1970).CrossRefADSGoogle Scholar
  5. (5).
    L. A. Charlton:Phys. Rev. C,12, 351 (1973).CrossRefADSGoogle Scholar
  6. (6).
    T. Takemasa:Nucl. Phys. A,220, 31 (1973).Google Scholar
  7. (7).
    M. R. Strayer andM. F. Werby:J. Phys. G,3, L 179 (1977);M. A. Nagarajan, M. R. Strayer andM. F. Werby: unpublished (1979).Google Scholar
  8. (8).
    M. A. Nagarajan, M. R. Strayer andM. F. Werby: unpublished (1979).Google Scholar
  9. (9).
    M. A. Nagarajan, M. R. Strayer andM. F. Werby:Phys. Lett. B,68, 421 (1977).CrossRefADSGoogle Scholar
  10. (10).
    M. F. Werby, M. R. Strayer andM. A. Nagarajan: unpublished (1979).Google Scholar
  11. (11).
    M. R. Strayer andP. U. Sauer:Nucl. Phys. A,231, 1 (1974).CrossRefADSGoogle Scholar
  12. (12).
    M. A. Nagarajan, M. R. Strayer andM. R. Werby:Phys. Lett. B,67, 141 (1977).CrossRefADSGoogle Scholar
  13. (13).
    A. Osman andM. Zaky:Phys. Rev. C,13, 1 (1976).CrossRefADSGoogle Scholar
  14. (14).
    R. Reid:Ann. Phys. (N. Y.),50, 41 (1968).CrossRefGoogle Scholar
  15. (15).
    R. M. Drisko andF. Rybicki:Phys. Rev. Lett.,16, 275 (1966).CrossRefADSGoogle Scholar
  16. (16).
    P. J. Iano andW. T. Pinkston:Nucl. Phys. A,237, 189 (1975).CrossRefADSGoogle Scholar
  17. (17).
    R. H. Ibarra, M. Vallieres andD. H. Feng:Nucl. Phys. A,241, 386 (1975);M. Vallieres, D. H. Feng andR. H. Ibarra:Nucl. Phys. A,256, 52 (1976).CrossRefADSGoogle Scholar
  18. (18).
    W. T. Pinkston, M. Vallieres andD. H. Feng:Phys. Rev. C,18, 1011 (1978).CrossRefADSGoogle Scholar
  19. (19).
    D. H. Feng, R. H. Ibarra andM. Vallieres:Phys. Lett. B,46, 37 (1973);47, 477 (1973).CrossRefADSGoogle Scholar
  20. (20).
    I. S. Towner andJ. C. Hardy:Adv. Phys.,18, 401 (1969);M. A. Nagarajan, M. R. Strayer andM. F. Werby: Daresbury Technical Report DLNSF-P52, DLNSF-P53 (May 1977).CrossRefADSGoogle Scholar
  21. (21).
    W. W. True:Phys. Rev.,168, 1388 (1968).CrossRefADSGoogle Scholar
  22. (22).
    G. R. Satchler:Nucl. Phys.,55, 1 (1964).CrossRefGoogle Scholar
  23. (23).
    See, for example,Symposium on Two-Nucleon Transfer and Pairing Excitations (Argonne, Ill., 1972).Google Scholar
  24. (24).
    W. A. Lanford andJ. B. McGrory:Phys. Lett. B,45, 238 (1973).CrossRefADSGoogle Scholar
  25. (25).
    E. R. Flynn, J. G. Beery andA. G. Blair:Nucl. Phys. A,218, 285 (1974).CrossRefADSGoogle Scholar
  26. (26).
    M. Pignanelli, S. Micheletti, I. Iari, P. Guazonni, F. G. Resmini andJ. L. Escudie:Phys. Rev. C,10, 971 (1974).CrossRefGoogle Scholar
  27. (27).
    W. H. Bassichis, M. R. Strayer, J. F. Reading andR. R. Scheerbaum:Phys. Rev. C,18, 632 (1978).CrossRefADSGoogle Scholar
  28. (28).
    F. G. Perey andB. Buck:Nucl. Phys.,32, 353 (1962).CrossRefMATHGoogle Scholar

Copyright information

© Società Italiana di Fisica 1980

Authors and Affiliations

  • M. F. Werby
    • 1
  • W. H. Bassichis
    • 1
  • M. R. Strayer
    • 2
  1. 1.Department of PhysicsTexas A and M UniversityCollege Station
  2. 2.Wright Nuclear Structure Laboratory, Department of PhysicsYale UniversityNew Haven

Personalised recommendations