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The reaction 48Ca + 248Cm → 296116* studied at the GSI-SHIP

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Abstract

The synthesis of element 116 in fusion-evaporation reactions of a 48Ca beam with radioactive 248Cm targets was studied at the velocity filter SHIP of GSI in Darmstadt. At excitation energies of the compound nuclei of 40.9MeV, four decay chains were measured, which were assigned to the isotope 292116, and one chain, which was assigned to 293116. Measured cross-sections of (3.4 +2.7−1.6 ) pb and (0.9 +2.1−0.7 ), respectively, and decay data of the chains agree with data measured previously at the Flerov Laboratory of Nuclear Reactions in Dubna. As a new result, one α-decay chain was measured, which terminates after four α decays by spontaneous fission. The α energies of the second-to-fourth decay are considerably higher than those measured for the α decays of 289114, 285Cn, and 281Ds and the spontaneous fission half-life is significantly longer than that of 277Hs measured in previous experiments. A possible assignment is discussed in the frame of excited quasiparticle states of nuclei populated in the decay chain from 293116. Also other possible assignments were considered and are discussed. At an excitation energy of 45.0MeV no events were observed resulting in a one-event cross-section limit of 1.6 pb. The technical aspects related with the use of radioactive target material at SHIP are described in detail. The experience gained in this experiment will serve as a basis for future experiments aiming to study still heavier elements at the velocity filter SHIP.

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References

  1. S.G. Nilsson, J.R. Nix, A. Sobiczewski, Z. Szymanski, S. Wycech, C. Gustafson, P. Möller, Nucl. Phys. A 115, 545 (1968).

    Article  ADS  Google Scholar 

  2. S.G. Nilsson, S.G. Thompson, C.F. Tsang, Phys. Lett. B 28, 458 (1969).

    Article  ADS  Google Scholar 

  3. R.K. Gupta, A. Sandulescu, W. Greiner, Z. Naturforsch. 32a, 704 (1977).

    ADS  Google Scholar 

  4. E.K. Hulet, R.W. Lougheed, J.F. Wild, J.H. Landrum, P.C. Stevenson, A. Ghiorso, J.M. Nitschke, R.J. Otto, D.J. Morrissey, P.A. Baisden et al., Phys. Rev. Lett. 39, 385 (1977).

    Article  ADS  Google Scholar 

  5. Yu.Ts. Oganessian, H. Bruchertseifer, G.V. Buklanov, V.I. Chepigin, V.S. Choi, B. Eichler, K.A. Gavrilov, H. Gaeggeler, Yu.S. Korotkin, O.A. Orlova et al., Nucl. Phys. A 294, 213 (1978).

    Article  ADS  Google Scholar 

  6. R.J. Otto, D.J. Morrissey, D. Lee, A. Ghiorso, J.M. Nitschke, G.T. Seaborg, M.M. Fowler, R.J. Silva, J. Inorg. Nucl. Chem. 40, 589 (1978).

    Article  Google Scholar 

  7. J.D. Illige, E.K. Hulet, J.M. Nitschke, R.J. Dougan, R.W. Lougheed, A. Ghiorso, J.H. Landrum, Phys. Lett. B 78, 209 (1978).

    Article  ADS  Google Scholar 

  8. G. Münzenberg, W. Faust, S. Hofmann, P. Armbruster, K. Güttner, H. Ewald, Nucl. Instrum. Methods 161, 65 (1979).

    Article  Google Scholar 

  9. S. Hofmann, W. Faust, G. Münzenberg, W. Reisdorf, P. Armbruster, K. Güttner, H. Ewald, Z. Phys. A 291, 53 (1979).

    Article  ADS  Google Scholar 

  10. P. Armbruster, Y.K. Agarwal, W. Brüchle, M. Brügger, J.P. Dufour, H. Gäggeler, F.P. Heßberger, S. Hofmann, P. Lemmertz, G. Münzenberg et al., Phys. Rev. Lett. 54, 406 (1985).

    Article  ADS  Google Scholar 

  11. S. Hofmann, G. Münzenberg, Rev. Mod. Phys. 72, 733 (2000).

    Article  ADS  Google Scholar 

  12. S. Hofmann, V. Ninov, F.P. Heßberger, P. Armbruster, H. Folger, G. Münzenberg, H.J. Schött, A.G. Popeko, A.V. Yeremin, S. Saro et al., Z. Phys. A 354, 229 (1996).

    ADS  Google Scholar 

  13. S. Hofmann, F.P. Heßberger, D. Ackermann, G. Münzenberg, S. Antalic, P. Cagarda, B. Kindler, J. Kojouharova, M. Leino, B. Lommel et al., Eur. Phys. J. A 14, 147 (2002).

    Article  ADS  Google Scholar 

  14. Yu.Ts. Oganessian, J. Phys. G: Nucl. Part. Phys. 34, R165 (2007).

    Article  ADS  Google Scholar 

  15. Yu.Ts. Oganessian, F.Sh. Abdullin, P.D. Bailey, D.E. Benker, M.E. Bennett, S.N. Dmitriev, J.G. Ezold, J.H. Hamilton, R.A. Henderson, M.G. Itkis et al., Phys. Rev. Lett. 104, 142502 (2010).

    Article  ADS  Google Scholar 

  16. K. Morita, K. Morimoto, D. Kaji, T. Akiyama, S. Goto, H. Haba, E. Ideguchi, K. Katori, H. Koura, H. Kikunaga et al., J. Phys. Soc. Jpn. 76, 045001 (2007).

    Article  ADS  Google Scholar 

  17. R. Eichler, N.V. Aksenov, A.V. Belozerov, G.A. Bozhikov, V.I. Chepigin, S.N. Dmitriev, R. Dressler, H.W. Gäggeler, V.A. Gorshkov, F. Haenssler et al., Nature 447, 72 (2007).

    Article  ADS  Google Scholar 

  18. S. Hofmann, D. Ackermann, S. Antalic, H.G. Burkhard, V.F. Comas, R. Dressler, Z. Gan, S. Heinz, J.A. Heredia, F.P. Heßberger et al., Eur. Phys. J. A 32, 251 (2007).

    Article  ADS  Google Scholar 

  19. L. Stavsetra, K.E. Gregorich, J. Dvorak, P.A. Ellison, I. Dragojevic, M.A. Garcia, H. Nitsche, Phys. Rev. Lett. 103, 132502 (2009).

    Article  ADS  Google Scholar 

  20. Ch.E. Düllmann, M. Schädel, A. Yakushev, A. Türler, K. Eberhardt, J.V. Kratz, D. Ackermann, L.-L. Andersson, M. Block, W. Brüchle et al., Phys. Rev. Lett. 104, 252701 (2010).

    Article  ADS  Google Scholar 

  21. J.M. Gates, Ch.E. Düllmann, M. Schädel, A. Yakushev, A. Türler, K. Eberhardt, J.V. Kratz, D. Ackermann, L.-L. Andersson, M. Block et al., Phys. Rev. C 83, 054618 (2011).

    Article  ADS  Google Scholar 

  22. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, R.N. Sagaidak, I.V. Shirokovsky, Yu.S. Tsyganov, A.A. Voinov, A.N. Mezentsev et al., Phys. Rev. C 79, 024603 (2009).

    Article  ADS  Google Scholar 

  23. S. Hofmann, D. Ackermann, S. Antalic, V.F. Comas, S. Heinz, J.A. Heredia, F.P. Heßberger, J. Khuyagbaatar, B. Kindler, I. Kojouharov, GSI Scientific Report 2008, GSI Report 2009-1, 131 (2009).

  24. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Phys. Atom. Nucl. 63, 1679 (2000).

    Article  ADS  Google Scholar 

  25. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Phys. Rev. C 63, 011301 (2000).

    Article  ADS  Google Scholar 

  26. Yu.Ts. Oganessian, V.K. Utyonkov, K.J. Moody, Phys. Atom. Nucl. 64, 1349 (2001).

    Article  ADS  Google Scholar 

  27. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Eur. Phys. J. A 15, 201 (2002).

    Article  ADS  Google Scholar 

  28. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Nucl. Phys. A 734, 109 (2004).

    Article  Google Scholar 

  29. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal, JINR preprint, E7-2004-160, pp. 1--28 (2004) (http://www.jinr.ru/publish/Preprints/2004/160(E7-2004-160).pdf).

  30. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Phys. Rev. C 70, 064609 (2004).

    Article  ADS  Google Scholar 

  31. G. Audi, A.H. Wapstra, Nucl. Phys. A 565, 1 (1993).

    Article  ADS  Google Scholar 

  32. W.D. Myers, W.J. Swiatecki, Nucl. Phys. A 601, 141 (1996).

    Article  ADS  Google Scholar 

  33. J.F. Ziegler, J.P. Biersack, SRIM-2000, Stopping and Range of Ions in Matter.

  34. K. Tinschert, R. Lang, J. Mäder, J. Roßbach, P. Spädtke, A. Yakushev, Proceedings of the ECRIS-2008 Conference on Plasma Physics and Techniques, Chicago, Il, USA, (2008) pp. 92--96, Joint Accelerator Conferences Website: http://www.jacow.org.

  35. L. Dahl, W. Barth, P. Gerhard, S. Mickat, W. Vinzenz, H. Vormann, Proceedings of the XXV Linear Accelerator Conference LINAC2010, Tsukuba, Japan, 2010 (2010) pp. 148-150, Joint Accelerator Conferences Website: http://www.jacow.org.

  36. R. Mann, D. Ackermann, S. Antalic, F.P. Heßberger, S. Hofmann, B. Kindler, P. Kuusiniemi, B. Lommel, K. Nishio, S. Saro, GSI Scientific Report 2005, GSI Report 2006-1, 198 (2006).

  37. K. Eberhardt, W. Brüchle, Ch.E. Düllmann, K.E. Gregorich, W. Hartmann, A. Hübner, E. Jäger, B. Kindler, J.V. Kratz, D. Liebe et al., Nucl. Instrum. Methods Phys. Res. A 590, 134 (2008).

    Article  ADS  Google Scholar 

  38. D. Liebe, K. Eberhardt, W. Hartmann, T. Häger, A. Hübner, J.V. Kratz, B. Kindler, B. Lommel, P. Thörle, M. Schädel, J. Steiner, Nucl. Instrum. Methods Phys. Res. A 590, 145 (2008).

    Article  ADS  Google Scholar 

  39. H. Folger, W. Hartmann, F.P. Heßberger, S. Hofmann, J. Klemm, G. Münzenberg, V. Ninov, W. Thalheimer, P. Armbruster, Nucl. Instrum. Methods Phys. Res. A 362, 64 (1995).

    Article  ADS  Google Scholar 

  40. R. Mann, D. Ackermann, S. Antalic, H.G. Burkhard, P. Cagarda, D. Gembalies-Datz, W. Hartmann, F.P. Heßberger, S. Hofmann, B. Kindler, GSI Scientific Report 2003, GSI Report 2004-1, 224 (2004).

  41. A. Rytz, At. Data Nucl. Data Tables 47, 205 (1991).

    Article  ADS  Google Scholar 

  42. S. Richter, W. Barth, Proceedings of the 8th European Particle Accelerator Conference, Paris, France, 2002 (2002) p. 1181.

  43. J. Kratz, private communication (2010).

  44. A.G. Popeko, O.N. Malyshev, A.V. Yeremin, S. Hofmann, Nucl. Instrum. Methods Phys. Res. A 427, 166 (1999).

    Article  ADS  Google Scholar 

  45. S. Saro, R. Janik, S. Hofmann, H. Folger, F.P. Heßberger, V. Ninov, H.J. Schött, A.N. Andreyev, A.P. Kabachenko, A.G. Popeko, A.V. Yeremin, Nucl. Instrum. Methods Phys. Res. A 381, 520 (1996).

    Article  ADS  Google Scholar 

  46. T.A. Carlson, C.W. Nestor, jr., At. Data Nucl. Data Tables 19, 153 (1977).

    Article  ADS  Google Scholar 

  47. S. Hofmann, G. Münzenberg, K. Valli, F.P. Heßberger, J.R.H. Schneider, P. Armbruster, B. Thuma, Y. Eyal, GSI Scientific Report 1981, 241 (1982).

  48. I. Perlman, F. Asaro, A. Ghiorso, A. Larsh, R. Latimer, Phys. Rev. 127, 917 (1962).

    Article  ADS  Google Scholar 

  49. S. Hofmann, G. Münzenberg, F.P. Heßberger, H.J. Schött, Nucl. Instrum. Meth. Phys. Res. 223, 312 (1984).

    Article  Google Scholar 

  50. I.V. Zagrebaev, Nucl. Phys. A 734, 164 (2004).

    Article  ADS  Google Scholar 

  51. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Phys. Rev. C 69, 054607 (2004).

    Article  ADS  Google Scholar 

  52. K.H. Schmidt, C.C. Sahm, K. Pielenz, H.G. Clerc, Z. Phys. A 316, 19 (1984).

    Article  ADS  Google Scholar 

  53. S. Hofmann, S. Heinz, R. Mann, J. Maurer, J. Khuyagbaatar, D. Ackermann, S. Antalic, W. Barth, M. Block, H.G. Burkhard, GSI Annual Report 2010, GSI Report 2011-1, 197 (2011).

  54. S. Heinz et al., Eur. Phys. J. A 48, 32 (2012).

    Article  ADS  Google Scholar 

  55. Yu.Ts. Oganessian, A.V. Yeremin, A.G. Popeko, S.L. Bogomolov, G.V. Buklanov, M.L. Chelnokov, V.I. Chepigin, B.N. Gikal, V.A. Gorshkov, G.G. Gulbekian et al., Nature 400, 242 (1999).

    Article  ADS  Google Scholar 

  56. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Phys. Rev. Lett. 83, 3154 (1999).

    Article  ADS  Google Scholar 

  57. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, I.V. Shirokovsky, Yu.S. Tsyganov, G.G. Gulbekian, S.L. Bogomolov, B.N. Gikal et al., Phys. Rev. C 62, 041604 (2000).

    Article  ADS  Google Scholar 

  58. A. Sobiczewski, I. Muntian, Z. Patyk, Phys. Rev. C 63, 034306 (2001).

    Article  ADS  Google Scholar 

  59. P. Möller, J.R. Nix, W.D. Myers, W.J. Swiatecki, At. Data Nucl. Data Tables 59, 185 (1995).

    Article  ADS  Google Scholar 

  60. R. Smolanczuk, J. Skalski, A. Sobiczewski, Phys. Rev. C 52, 1871 (1995).

    Article  ADS  Google Scholar 

  61. S. Cwiok, W. Nazarewicz, P.H. Heenen, Phys. Rev. Lett. 83, 1108 (1999).

    Article  ADS  Google Scholar 

  62. D.C. Hoffman, Nucl. Phys. A 502, 21c (1989).

    Article  ADS  Google Scholar 

  63. S. Cwiok, P.H. Heenen, W. Nazarewicz, Nature 433, 705 (2005).

    Article  ADS  Google Scholar 

  64. M. Bender, K. Rutz, P.-G. Reinhard, J.A. Maruhn, W. Greiner, Phys. Rev. C 60, 034304 (1999).

    Article  ADS  Google Scholar 

  65. M. Bender, Phys. Rev. C 61, 031302(R) (2000).

    Article  ADS  Google Scholar 

  66. S. Cwiok, S. Hofmann, W. Nazarewicz, Nucl. Phys. A 573, 356 (1994).

    Article  ADS  Google Scholar 

  67. J.O. Rasmussen, Phys. Rev. 113, 1593 (1959).

    Article  ADS  Google Scholar 

  68. G. Igo, Phys. Rev. 115, 1665 (1959).

    Article  ADS  Google Scholar 

  69. A. Parkhomenko, A. Sobiczewski, Acta Phys. Pol. B 36, 3095 (2005).

    ADS  Google Scholar 

  70. R. Smolanczuk, Phys. Rev. C 56, 812 (1997).

    Article  ADS  Google Scholar 

  71. P. Möller, A.J. Sierk, T. Ichikawa, A. Iwamoto, R. Bengtsson, H. Uhrenholt, S. Åberg, Phys. Rev. C 79, 064304 (2009).

    Article  ADS  Google Scholar 

  72. Yu.Ts. Oganessian, V.K. Utyonkov, Yu.V. Lobanov, F.Sh. Abdullin, A.N. Polyakov, R.N. Sagaidak, I.V. Shirokovsky, Yu.S. Tsyganov, A.A. Voinov, G.G. Gulbekian et al., Phys. Rev. C 74, 044602 (2006).

    Article  ADS  Google Scholar 

  73. I. Muntian, S. Hofmann, Z. Patyk, A. Sobiczewski, Acta Phys. Pol. B 34, 2073 (2003).

    ADS  Google Scholar 

  74. I. Muntian, Z. Patyk, A. Sobiczewski, Phys. At. Nucl. 66, 1015 (2003).

    Article  Google Scholar 

  75. P. Möller et al., At. Data Nucl. Data Tables 66, 131 (1997).

    Article  ADS  Google Scholar 

  76. S. Liran, A. Marinov, N. Zeldes, Phys. Rev. C 63, 017302 (2000) arXiv:nucl-th/0102055.

    Article  ADS  Google Scholar 

  77. K. Siwek-Wilczynska, T. Cap, J. Wilczynski, Int. J. Mod. Phys. E 19, 500 (2010).

    Article  ADS  Google Scholar 

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Communicated by J. Äystö

This paper is dedicated to A. Sobiczewski on the occasion of his 80th birthday

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Hofmann, S., Heinz, S., Mann, R. et al. The reaction 48Ca + 248Cm → 296116* studied at the GSI-SHIP. Eur. Phys. J. A 48, 62 (2012). https://doi.org/10.1140/epja/i2012-12062-1

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