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Pramana

, Volume 85, Issue 3, pp 423–430 | Cite as

Ternary fission

  • M BALASUBRAMANIAM
  • K R VIJAYARAGHAVAN
  • C KARTHIKRAJ
Article

Abstract

We present the ternary fission of 252Cf and 236U within a three-cluster model as well as in a level density approach. The competition between collinear and equatorial geometry is studied by calculating the ternary fragmentation potential as a function of the angle between the lines joining the stationary middle fragment and the two end fragments. The obtained results for the 16O accompanying ternary fission indicate that collinear configuration is preferred to equatorial configuration. Further, for all the possible third fragments, the potential energy surface (PES) is calculated corresponding to an arrangement in which the heaviest and the lightest fragments are considered at the end in a collinear configuration. The PES reveals several possible ternary modes including true ternary modes where the three fragments are of similar size. The complete mass distributions of Si and Ca which accompanied ternary fission of 236U is studied within a level density picture. The obtained results favour several possible ternary combinations.

Keywords

Ternary fission three-cluster model level density single-particle energies. 

PACS Nos

24.75.+i 25.85.−w 21.60.Gx 21.10.Ma 

References

  1. [1]
    K Manimaran and M Balasubramaniam, Phys. Rev. C 79, 024610 (2009)Google Scholar
  2. [2]
    K Manimaran and M Balasubramaniam, Eur. Phys. J. A 45, 293 (2010)Google Scholar
  3. [3]
    K Manimaran and M Balasubramaniam, J. Phys. G: Nucl. Part. Phys. 37, 045104 (2010)Google Scholar
  4. [4]
    K Manimaran and M Balasubramaniam, Phys. Rev. C 83, 034609 (2011)Google Scholar
  5. [5]
    K R Vijayaraghavan, W von Oertzen and M Balasubramaniam, Eur. Phys. J. A 48, 27 (2012)Google Scholar
  6. [6]
    K R Vijayaraghavan, M Balasubramaniam and W von Oertzen, Phys. Rev. C 90, 024601 (2014)Google Scholar
  7. [7]
    R K Gupta, Sov. J. Part. Nucleus 8, 289 (1977)Google Scholar
  8. [8]
    J A Maruhn, W Greiner and W Scheid, Heavy ion collisions edited by R Bock (North Holland, Amsterdam, 1980) Vol. 2, Chap. 6Google Scholar
  9. [9]
    A Sǎndulescu, D N Poenaru and W Greiner, Sov. J. Part. Nucleus 11, 528 (1980)Google Scholar
  10. [10]
    R K Gupta, in: Heavy elements and related new phenomena edited by W Greiner and R K Gupta (World Scientific, Singapore, 1999) Vol. II, p. 730Google Scholar
  11. [11]
    R K Gupta and W Greiner, ibid. [10], I 397; 536 (1999)Google Scholar
  12. [12]
    G Audi, A H Wapstra and C Thibault, Nucl. Phys. A 729, 337 (2003)Google Scholar
  13. [13]
    M W Kermode, M M Mustafa and N Rowley, J. Phys. G: Nucl. Part. Phys. 16, L299 (1990)Google Scholar
  14. [14]
    M Rajasekaran and V Devanathan, Phys. Rev. C 24, 2606 (1981)Google Scholar
  15. [15]
    P Fong, Phys. Rev. 102, 434 (1956)Google Scholar
  16. [16]
    H Bethe, Rev. Mod. Phys. 9, 69 (1937)Google Scholar
  17. [17]
  18. [18]
    P Möller, W D Myers, W J Swiatecki and J Treiner, At. Data Nucl. Data Tables 39, 225 (1988)Google Scholar
  19. [19]
    R Capote et al, Nucl. Data Sheets 110, 3107 (2009)Google Scholar

Copyright information

© Indian Academy of Sciences 2015

Authors and Affiliations

  • M BALASUBRAMANIAM
    • 1
  • K R VIJAYARAGHAVAN
    • 1
  • C KARTHIKRAJ
    • 1
  1. 1.Department of PhysicsBharathiar UniversityCoimbatoreIndia

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