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Stellar weak interaction rates and shape coexistence for 68Se and 72Kr waiting points

  • A. PetroviciEmail author
  • O. Andrei
Regular Article - Theoretical Physics

Abstract

Beyond-mean-field results on stellar beta-decay and continuum electron capture rates for the rp-process waiting point nuclei 68Se and 72Kr at densities ρY e = 104−107 mol/cm3 and temperatures T = 108−1010 K are presented. The structure of the even-even parent and odd-odd daughter nuclei dominated by shape coexistence and mixing is self-consistently described within the complex Excited Vampir model using realistic effective interactions in rather large model spaces. The influence of the shape mixing in the structure of the low-lying parent states as well as in the independently calculated daughter states on the stellar weak interaction rates is discussed.

Keywords

Model Space Total Decay Rate Shape Coexistence Strong Branch 40Ca Core 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. 1.
    G.M. Fuller, W.A. Fowller, M.J. Newman, Astrophys. J. Suppl. Ser. 42, 447 (1980).CrossRefADSGoogle Scholar
  2. 2.
    G.M. Fuller, W.A. Fowller, M.J. Newman, Astrophys. J. 252, 715 (1982).CrossRefADSGoogle Scholar
  3. 3.
    G.M. Fuller, W.A. Fowller, M.J. Newman, Astrophys. J. Suppl. Ser. 48, 279 (1982).CrossRefADSGoogle Scholar
  4. 4.
    G.M. Fuller, W.A. Fowller, M.J. Newman, Astrophys. J. 293, 1 (1985).CrossRefADSGoogle Scholar
  5. 5.
    H. Schatz et al., Phys. Rep. 294, 167 (1998).CrossRefADSGoogle Scholar
  6. 6.
    K. Langanke, G. Martinez-Pinedo, Rev. Mod. Phys. 75, 819 (2003).CrossRefADSGoogle Scholar
  7. 7.
    J. Pruet, G.M. Fuller, Astrophys. J. Suppl. Ser. 149, 189 (2003).CrossRefADSGoogle Scholar
  8. 8.
    S.E. Woosley et al., Astrophys. J. Suppl. Ser. 151, 75 (2004).CrossRefADSGoogle Scholar
  9. 9.
    P. Sarriguren, E. Moya de Guerra, A. Escuderos, Nucl. Phys. A 691, 631 (2001).CrossRefADSGoogle Scholar
  10. 10.
    A. Petrovici, K.W. Schmid, O. Radu, A. Faessler, Phys. Rev. C 78, 044315 (2008).CrossRefADSGoogle Scholar
  11. 11.
    P. Sarriguren, Phys. Rev. C 79, 044315 (2009).CrossRefADSGoogle Scholar
  12. 12.
    A. Petrovici, K.W. Schmid, O. Andrei, A. Faessler, Phys. Rev. C 80, 044319 (2009).CrossRefADSGoogle Scholar
  13. 13.
    P. Sarriguren, Phys. Lett. B 680, 438 (2009).CrossRefADSGoogle Scholar
  14. 14.
    A. Petrovici, K.W. Schmid, A. Faessler, Progr. Part. Nucl. Phys. 66, 287 (2011).CrossRefADSGoogle Scholar
  15. 15.
    P. Sarriguren, Phys. Rev. C 83, 025801 (2011).CrossRefADSGoogle Scholar
  16. 16.
    J.-U. Nabi, Astrophys. Space Sci. 339, 305 (2012).CrossRefADSGoogle Scholar
  17. 17.
    K.W. Schmid, F. Grümmer, A. Faessler, Ann. Phys. 180, 1 (1987).CrossRefADSGoogle Scholar
  18. 18.
    A. Petrovici, K.W. Schmid, A. Faessler, Nucl. Phys. A 605, 290 (1996).CrossRefADSGoogle Scholar
  19. 19.
    A. Petrovici, K.W. Schmid, A. Faessler, Nucl. Phys. A 665, 333 (2000).CrossRefADSGoogle Scholar
  20. 20.
    A. Petrovici, Phys. Rev. C 91, 014302 (2015).CrossRefADSGoogle Scholar
  21. 21.
    A. Petrovici, Phys. Rev. C 85, 034337 (2012).CrossRefADSGoogle Scholar
  22. 22.
    D. Jordan et al., Phys. Rev. C 87, 044318 (2013).CrossRefADSGoogle Scholar
  23. 23.
    A. Obertelli et al., Phys. Rev. C 80, 031304 (2009).CrossRefADSGoogle Scholar
  24. 24.
    N.B. Gove, M.J. Martin, Nucl. Data Tables 10, 205 (1971).CrossRefADSGoogle Scholar
  25. 25.
    P. Baumann et al., Phys. Rev. C 50, 1180 (1994).CrossRefADSGoogle Scholar
  26. 26.
    H. Iwasaki et al., Phys. Rev. Lett. 112, 142502 (2014).CrossRefADSGoogle Scholar
  27. 27.
    J. Briz, ARIS 2014, Tokyo, Japan, June 1-6, 2014.Google Scholar
  28. 28.
    I. Piqueras et al., Eur. Phys. J. A 16, 313 (2003).CrossRefADSGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.National Institute for Physics and Nuclear EngineeringBucharestRomania

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