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Evolution of uranium fission-fragment charge yields with neutron number

Strong effect of multi-chance fission on yield asymmetries
  • Peter MöllerEmail author
  • Christelle Schmitt
Regular Article - Theoretical Physics

Abstract.

We use the Brownian shape-motion model, with its recent extensions, which allow modeling of odd-even staggering, to calculate the evolution of fission-fragment charge distributions with neutron number for the compound-system sequence 234U, 236U, 238U, and 240U. We compare to experimental data where available, for neutron- and electromagnetic-induced fission over a compound-nucleus excitation energy range from about 6 to 20 MeV. A notable result of the study is that the evolution of the location of the peak charge yield from \(Z=54\) in 234U towards \(Z=52\) in heavier isotopes, seen in the experimental data, is present also in the calculated yields. We further show that to describe yields at higher compound-nucleus excitation energies, then, already at 20 MeV, it is necessary to take multi-chance fission into account.

References

  1. 1.
    P. Möller, A.J. Sierk, T. Ichikawa, A. Iwamoto, R. Bengtsson, H. Uhrenholt, S. Åberg, Phys. Rev. C 79, 064304 (2009)ADSCrossRefGoogle Scholar
  2. 2.
    J. Randrup, P. Möller, Phys. Rev. Lett. 106, 132503 (2011)ADSCrossRefGoogle Scholar
  3. 3.
    J. Randrup, P. Möller, Phys. Rev. C 88, 064606 (2013)ADSCrossRefGoogle Scholar
  4. 4.
    K.-H. Schmidt, S. Steinhäuser, C. Böckstiegel, A. Grewe, A. Heinz, A.R. Junghans, J. Benlliure, H.-G. Clerc, M. de Jong, J. Müller, M. Pfützner, B. Voss, Nucl. Phys. A 665, 221 (2000)ADSCrossRefGoogle Scholar
  5. 5.
    J. Randrup, P. Möller, A.J. Sierk, Phys. Rev. C 84, 034613 (2011)ADSCrossRefGoogle Scholar
  6. 6.
    P. Möller, J. Randrup, Phys. Rev. C 91, 044316 (2015)ADSCrossRefGoogle Scholar
  7. 7.
    P. Möller, J. Randrup, A. Iwamoto, T. Ichikawa, Phys. Rev. C 90, 014601 (2014)ADSCrossRefGoogle Scholar
  8. 8.
    P. Möller, T. Ichikawa, Eur. Phys. J. A 51, 173 (2015)ADSCrossRefGoogle Scholar
  9. 9.
    A. Al-Adili, F.-J. Hambsch, S. Pomp, S. Oberstedt, Phys. Rev. C 86, 054601 (2012)ADSCrossRefGoogle Scholar
  10. 10.
    A. Mamdouh, J.M. Pearson, M. Rayet, F. Tondeur, Nucl. Phys. A 644, 389 (1998)ADSCrossRefGoogle Scholar
  11. 11.
    P. Möller, A. Iwamoto, Acta Phys. Hung. New Ser. 10, 241 (1999) (Proceedings of the Conference on Nuclear Shapes and Motions, Symposium in Honor of Ray Nix, 25--27 October 1998, Santa Fe, NM, USAGoogle Scholar
  12. 12.
    P. Möller, A. Iwamoto, Phys. Rev. C 61, 047602 (2000)ADSCrossRefGoogle Scholar
  13. 13.
    P. Möller, D.G. Madland, A.J. Sierk, A. Iwamoto, AIP Conf. Proc. 561, 455 (2001) (Tours 2000, Tours Symposium on Nuclear Physics IV, Tours, France September 4--7, 2000ADSCrossRefGoogle Scholar
  14. 14.
    P. Möller, D.G. Madland, A.J. Sierk, A. Iwamoto, Nature 409, 785 (2001)ADSCrossRefGoogle Scholar
  15. 15.
    P. Möller, J.R. Nix, W.J. Swiatecki, Nucl. Phys. A 492, 349 (1989)ADSCrossRefGoogle Scholar
  16. 16.
    P. Möller, J.R. Nix, J. Phys. G 20, 1681 (1994)ADSCrossRefGoogle Scholar
  17. 17.
    L. Dematte, C. Wagemans, R. Barthelemy, P. Dhondt, A. Deruytter, Nucl. Phys. A 617, 331 (1997)ADSCrossRefGoogle Scholar
  18. 18.
    A. Chatillon, J. Taieb, J.F.-Martin, E. Pellereau, G. Boutoux, T. Gorbinet, L. Grente, the SOFIA Collaboration, Eur. Phys. J. Web of Conferences 111, 08001 (2016)CrossRefGoogle Scholar
  19. 19.
    G. Boutoux, G. Blier, A. Chatillon, A. Ebran, T. Gorbinet, B. Laurent, J.-F. Martin, E. Pellereau, J. Taieb, the SOFIA Collaboration, Phys. Proc. 47, 166 (2013)ADSCrossRefGoogle Scholar
  20. 20.
    M. Caamano, O. Delaune, F. Farget, X. Derkx, K.-H. Schmidt, L. Audouin, C.-O. Bacri, G. Barreau, J. Benlliure, E. Casarejos, A. Chbihi, B. Fernandez-Dominguez, L. Gaudefroy, C. Golabek, B. Jurado, A. Lemasson, A. Navin, M. Rejmund, T. Roger, A. Shrivastava, C. Schmitt, Phys. Rev. C 88, 024605 (2013)ADSCrossRefGoogle Scholar
  21. 21.
    C. Böckstiegel, S. Steinhaeuser, K.-H. Schmidt, H.-G. Clerc, A. Grewe, A. Heinz, M. de Jong, A.R. Junghans, J. Mueller, B. Voss, Nucl. Phys. A 802, 12 (2008)ADSCrossRefGoogle Scholar
  22. 22.
    P. Möller, J.R. Nix, Nucl. Phys. A 272, 502 (1976)ADSCrossRefGoogle Scholar
  23. 23.
    P. Möller, A.J. Sierk, Nature 422, 485 (2003)ADSCrossRefGoogle Scholar
  24. 24.
    T. Ichikawa, A. Iwamoto, P. Möller, A.J. Sierk, Phys. Rev. C 71, 044608 (2005)ADSCrossRefGoogle Scholar
  25. 25.
    P. Möller, J. Randrup, A.J. Sierk, Phys. Rev. C 85, 024306 (2012)ADSCrossRefGoogle Scholar
  26. 26.
    P. Möller, A.J. Sierk, T. Ichikawa, A. Iwamoto, M. Mumpower, Phys. Rev. C 91, 024310 (2015)ADSCrossRefGoogle Scholar
  27. 27.
    N. Dubray, D. Regnier, Comput. Phys. Commun. 183, 2035 (2012)ADSCrossRefGoogle Scholar
  28. 28.
    P. Jachimowicz, M. Kowal, J. Skalski, Phys. Rev. C 85, 034305 (2012)ADSCrossRefGoogle Scholar
  29. 29.
    T. Ichikawa, P. Möller, A.J. Sierk, Phys. Rev. C 87, 054326 (2013)ADSCrossRefGoogle Scholar
  30. 30.
    A.N. Andreyev, J. Elseviers, M. Huyse, P. Van Duppen, S. Antalic, A. Barzakh, N. Bree, T.E. Cocolios, V.F. Comas, J. Diriken, D. Fedorov, V. Fedosseev, S. Franchoo, J.A. Heredia, O. Ivanov, U. Köster, B.A. Marsh, K. Nishio, R.D. Page, N. Patronis, M. Seliverstov, I. Tsekhanovich, P. Van den Bergh, J. Van De Walle, M. Venhart, S. Vermote, M. Veselsky, C. Wagemans, T. Ichikawa, A. Iwamoto, P. Möller, A.J. Sierk, Phys. Rev. Lett. 105, 252502 (2010)ADSCrossRefGoogle Scholar
  31. 31.
    T. Ichikawa, A. Iwamoto, P. Möller, A.J. Sierk, Phys. Rev. C 86, 024610 (2012)ADSCrossRefGoogle Scholar
  32. 32.
    U. Quade, K. Rudolph, S. Skorka, H.-G. Clerc, W. Lang, M. Mutterer, C. Schmitt, J.P. Theobald, F. Gönnenwein, J. Pannicke, H. Schrader, G. Siegert, D. Engelhardt, Nucl. Phys. A 487, 1 (1988)ADSCrossRefGoogle Scholar
  33. 33.
  34. 34.
    P. Armbruster, M. Bernas, S. Czajkowski, H. Geissel, T. Aumann, Ph. Dessagne, C. Donzaud, E. Hanelt, A. Heinz, M. Hesse, C. Kozhuharov, Ch. Miehe, G. Münzenberg, M. Pfützner, K.-H. Schmidt, W. Schwab, C. Stéphan, K. Sümmerer, L. Tassan-Got, B. Voss, Z. Phys. A 355, 191 (1996)ADSCrossRefGoogle Scholar
  35. 35.
    D.G. Madland, J.R. Nix, Nucl. Sci. Eng. 81, 213 (1982)CrossRefGoogle Scholar
  36. 36.
    J. Khuyagbaatar, D.J. Hinde, I.P. Carter, M. Dasgupta, Ch.E. Düllmann, M. Evers, D.H. Luong, R. du Rietz, A. Wakhle, E. Williams, A. Yakushev, Phys. Rev. C 91, 054608 (2015)ADSCrossRefGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2017

Authors and Affiliations

  1. 1.Theoretical DivisionLos Alamos National LaboratoryLos AlamosUSA
  2. 2.Grand Accélérateur National d’Ions LourdsCEA/DSM-CNRS/IN2P3CaenFrance

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