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Half-lives of rp-process waiting point nuclei

  • P. SarrigurenEmail author
  • R. Álvarez-Rodrıguez
  • E. Moya de Guerra
Original Article

Abstract.

We give results of microscopic calculations for the half-lives of various proton-rich nuclei in the mass region A = 60-90, which are involved in the astrophysical rp-process, and which are needed as input parameters of numerical simulations in Nuclear Astrophysics. The microscopic formalism consists of a deformed QRPA approach that involves a self-consistent quasiparticle deformed Skyrme Hartree-Fock basis and residual spin-isospin separable forces in both the particle-hole and particle-particle channels. The strength of the particle-hole residual interaction is chosen to be consistent with the Skyrme effective force and mean-field basis, while that of the particle-particle is globally fixed to κ = 0.07 MeV after a judicious choice from comparison to experimental half-lives. We study and discuss the sensitivity of the half-lives to deformation and residual interactions.

PACS.

21.60.Jz Hartree-Fock and random-phase approximations 23.40.Hc Relation with nuclear matrix elements and nuclear structure 26.30.+k Nucleosynthesis in novae, supernovae and other explosive environments 

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References

  1. 1.
    K. Grotz, H.V. Klapdor, The Weak Interaction in Nuclear, Particle and Astrophysics (IOP, Bristol, 1990)Google Scholar
  2. 2.
    H. Schatz , Phys. Rep. 294, 167 (1998).Google Scholar
  3. 3.
    K. Takahashi, M. Yamada, T. Kondoh, At. Data Nucl. Data Tables 12, 101 (1973)Google Scholar
  4. 4.
    P. Moeller, J.R. Nix, K.-L. Kratz, At. Data Nucl. Data Tables 66, 131 (1997).Google Scholar
  5. 5.
    J.-U. Nabi, H.V. Klapdor-Kleingrothaus, At. Data Nucl. Data Tables 71, 149 (1999).Google Scholar
  6. 6.
    K. Langanke, G. Martínez-Pinedo, Nucl. Phys. A 673, 481 (2000)Google Scholar
  7. 7.
    J.A. Halbleib, R.A. Sorensen, Nucl. Phys. A 98, 542 (1967).Google Scholar
  8. 8.
    P. Vogel, M.R. Zirnbauer, Phys. Rev. Lett. 57, 3148 (1986)Google Scholar
  9. 9.
    J. Krumlinde, P. Moeller, Nucl. Phys. A 417, 419 (1984).Google Scholar
  10. 10.
    P. Moeller, J. Randrup, Nucl. Phys. A 514, 1 (1990).Google Scholar
  11. 11.
    H. Homma, E. Bender, M. Hirsch, K. Muto, H.V. Klapdor-Kleingrothaus, T. Oda, Phys. Rev. C 54, 2972 (1996).Google Scholar
  12. 12.
    J. Engel, M. Bender, J. Dobaczewski, W. Nazarewicz, R. Surnam, Phys. Rev. C 60, 014302 (1999)Google Scholar
  13. 13.
    P. Sarriguren, E. Moya de Guerra, A. Escuderos, A.C. Carrizo, Nucl. Phys. A 635, 55 (1998)Google Scholar
  14. 14.
    P. Sarriguren, E. Moya de Guerra, A. Escuderos, Nucl. Phys. A 691, 631 (2001).Google Scholar
  15. 15.
    P. Sarriguren, E. Moya de Guerra, A. Escuderos, Phys. Rev. C 64, 064306 (2001).Google Scholar
  16. 16.
    P. Moeller, J.R. Nix, W.D. Myers, W.J. Swiatecki, At. Data Nucl. Data Tables 59, 185 (1995).Google Scholar
  17. 17.
    M. Beiner, H. Flocard, N. Van Giai, P. Quentin, Nucl. Phys. A 238, 29 (1975).Google Scholar
  18. 18.
    N. Van Giai, H. Sagawa, Phys. Lett. B 106, 379 (1981).Google Scholar
  19. 19.
    G.F. Bertsch, S.F. Tsai, Phys. Rep. 18, 127 (1975). Google Scholar
  20. 20.
    P. Sarriguren, E. Moya de Guerra, R. Nojarov, Phys. Rev. C 54, 690 (1996)Google Scholar
  21. 21.
    D. Zawisha, J. Speth, Nucl. Phys. A 569, 343c (1994).Google Scholar
  22. 22.
    N. Van Giai, Ch. Stoyanov, V.V. Voronov, Phys. Rev, C 57, 1204 (1998)Google Scholar
  23. 23.
    A. Bohr, B. Mottelson, Nuclear Structure (Benjamin, New York, 1975).Google Scholar
  24. 24.
    E. Moya de Guerra, Phys. Rep. 138, 293 (1986).Google Scholar
  25. 25.
    N.B. Gove, M.J. Martin, Nucl. Data Tables 10, 205 (1971).Google Scholar
  26. 26.
    H. Flocard, P. Quentin, A.K. Kerman, D. Vautherin, Nucl. Phys. A 203, 433 (1973).Google Scholar
  27. 27.
    G. Audi, O. Bersillon, J. Blachot, A.H. Wapstra, Nucl. Phys. A 729, 3 (2003).Google Scholar
  28. 28.
    G.A. Lalazissis, S. Raman, P. Ring, At. Data Nucl. Data Tables 71, 1 (1999).Google Scholar
  29. 29.
    P.-G. Reinhard, D.J. Dean, W. Nazarewicz, J. Dobaczewski, J.A. Maruhn, M.R. Strayer, Phys. Rev. C 60, 014316 (1999).Google Scholar
  30. 30.
    C.J. Lister, M. Campbell, A.A. Chishti, W. Gelletly, L. Goettig, R. Moscrop, B.J. Varley, A.N. James, T. Morrison, H.G. Price, J. Simpson, K. Connel, O. Skeppstedt, Phys. Rev. Lett. 59, 1270 (1987).Google Scholar
  31. 31.
    P. Sarriguren, E. Moya de Guerra, R. Álvarez-Rodríguez, Nucl. Phys. A 716, 230 (2003).Google Scholar
  32. 32.
    E. Caurier, K. Langanke, G. Martínez-Pinedo, F. Nowaki, Nucl. Phys. A 653, 439 (1999).Google Scholar
  33. 33.
    E. Poirier , Phys. Rev. C 69, 034307 (2004)Google Scholar
  34. 34.
    P. Kienle , Prog. Part. Nucl. Phys. 46, 73 (2001).Google Scholar

Copyright information

© Società Italiana di Fisica and Springer-Verlag 2005

Authors and Affiliations

  • P. Sarriguren
    • 1
    Email author
  • R. Álvarez-Rodrıguez
    • 1
  • E. Moya de Guerra
    • 1
  1. 1.Instituto de Estructura de la MateriaConsejo Superior de Investigaciones CientıficasMadridSpain

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