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Unbound Isotopes

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The Discovery of Isotopes

Abstract

When the neutron- or proton-excess in a given nuclide becomes too large, the last nucleon becomes unbound and the nuclide decays by emitting a neutron or proton. The time scale for this nucleon emission can be extremely short. Sometimes these systems are only referred to as resonances rather than nuclides. The chapter describes the discovery of neutron- as well as proton-unbound nuclides and resonances.

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References

  1. M. Langevin et al., Phys. Lett. B 125, 116 (1983)

    Article  ADS  Google Scholar 

  2. Z. Kohley et al., Phys. Rev. Lett. 110, 152501 (2013)

    Article  ADS  Google Scholar 

  3. IUPAC Transfermium Working Group, Pure Appl. Chem. 63, 879 (1991)

    Google Scholar 

  4. V.I. Goldanskii, Annu. Rev. Nucl. Part. Sci. 16, 1 (1960)

    Article  ADS  Google Scholar 

  5. M. Thoennessen, Rep. Prog. Phys. 67, 1187 (2004)

    Article  ADS  Google Scholar 

  6. T. Baumann, A. Spyrou, M. Thoennessen, Rep. Prog. Phys. 75, 036301 (2012)

    Article  ADS  Google Scholar 

  7. J. Cerny, J.C. Hardy, Annu. Rev. Nucl. Part. Sci. 27, 323 (1977)

    Article  ADS  Google Scholar 

  8. J.H. Williams, W.G. Shepherd, R.O. Haxby, Phys. Rev. 51, 888 (1937)

    Article  ADS  Google Scholar 

  9. R.P. Haddock et al., Phys. Rev. Lett. 14, 318 (1965)

    Article  ADS  Google Scholar 

  10. R.H. Stokes, P.G. Young, Phys. Rev. Lett. 18, 611 (1967)

    Article  ADS  Google Scholar 

  11. K.H. Wilcox et al., Phys. Lett. B 59, 142 (1975)

    Article  ADS  Google Scholar 

  12. U. Sennhauser et al., Phys. Lett. B 103, 409 (1981)

    Article  ADS  Google Scholar 

  13. D.V. Aleksandrov et al., Sov. J. Nucl. Phys. 37, 474 (1983)

    Google Scholar 

  14. D.V. Aleksandrov et al., Sov. J. Nucl. Phys. 39, 323 (1984)

    Google Scholar 

  15. K.K. Seth et al., Phys. Rev. Lett. 58, 1930 (1987)

    Article  ADS  Google Scholar 

  16. A.A. Korsheninnikov et al., Phys. Lett. B 326, 31 (1994)

    Article  ADS  Google Scholar 

  17. R. Kalpakchieva et al., Eur. Phys. J. A 7, 451 (2000)

    ADS  Google Scholar 

  18. A.A. Korsheninnikov et al., Phys. Rev. Lett. 87, 092501 (2001)

    Article  ADS  Google Scholar 

  19. A.A. Korsheninnikov et al., Phys. Rev. Lett. 90, 082501 (2003)

    Article  ADS  Google Scholar 

  20. C.R. Hoffman et al., Phys. Rev. Lett. 100, 152502 (2008)

    Article  ADS  Google Scholar 

  21. Y. Aksyutina et al., Phys. Lett. B 666, 430 (2008)

    Article  ADS  Google Scholar 

  22. A. Spyrou et al., Phys. Lett. B 683, 129 (2010)

    Article  ADS  Google Scholar 

  23. C.C. Hall et al., Phys. Rev. C 81, 021302 (2010)

    Article  ADS  Google Scholar 

  24. G. Christian et al., Phys. Rev. Lett. 108, 032501 (2012)

    Article  ADS  Google Scholar 

  25. A. Spyrou et al., Phys. Rev. Lett. 108, 102501 (2012)

    Article  ADS  Google Scholar 

  26. E. Lunderberg et al., Phys. Rev. Lett. 108, 142503 (2012)

    Article  ADS  Google Scholar 

  27. J. Snyder et al., Phys. Rev. C 88, 031303 (2013)

    Article  ADS  Google Scholar 

  28. J.H. Williams, W.G. Shepherd, R.O. Haxby, Phys. Rev. 52, 390 (1937)

    Article  ADS  Google Scholar 

  29. W. von Witsch et al., Nucl. Phys. A 329, 141 (1979)

    Article  ADS  Google Scholar 

  30. M.S. Golovkov et al., Phys. Rev. C 72, 064612 (2005)

    Article  ADS  Google Scholar 

  31. Y.B. Gurov et al., Bull. Rus. Acad. Sci. Phys. 73, 139 (2009)

    Article  Google Scholar 

  32. B.M.K. Nefkens, Phys. Rev. Lett. 10, 55 (1963)

    Article  ADS  Google Scholar 

  33. R.J. Cence, C.N. Waddell, Phys. Rev. 128, 1788 (1962)

    Article  ADS  Google Scholar 

  34. A. Schwarzschild et al., Phys. Rev. 133, B1 (1964)

    Article  ADS  Google Scholar 

  35. N.K. Sherman, P. Barreau, Phys. Lett. 9, 151 (1964)

    Article  ADS  Google Scholar 

  36. M. Caamano et al., Phys. Rev. Lett. 99, 062502 (2007)

    Article  ADS  Google Scholar 

  37. Z. Kohley et al., Phys. Rev. C 87, 011304 (2013)

    Article  ADS  Google Scholar 

  38. J.D. Stevenson, P.B. Price, Phys. Rev. C 24, 2102 (1981)

    Article  ADS  Google Scholar 

  39. M. Langevin et al., Phys. Lett. B 150, 71 (1985)

    Article  ADS  Google Scholar 

  40. M.A. Tuve, N.P. Heydenburg, L.R. Hafstad, Phys. Rev. 50, 806 (1936)

    Article  ADS  Google Scholar 

  41. R.O. Haxby et al., Phys. Rev. 58, 1035 (1940)

    Article  ADS  Google Scholar 

  42. N.P. Heydenburg, N.F. Ramsey, Phys. Rev. 60, 42 (1941)

    Article  ADS  Google Scholar 

  43. G.F. Bogdanov et al., J. Nucl. Energy II 8, 148 (1958)

    Google Scholar 

  44. H.C. Bryant et al., Nucl. Phys. 53, 97 (1964)

    Article  Google Scholar 

  45. J. Cerny, C. Détraz, R.H. Pehl, Phys. Rev. Lett. 15, 300 (1965)

    Article  ADS  Google Scholar 

  46. R.L. McGrath, J. Cerny, E. Norbeck, Phys. Rev. Lett. 19, 1442 (1967)

    Article  ADS  Google Scholar 

  47. J. Cerny et al., Phys. Rev. Lett. 22, 612 (1969)

    Article  ADS  Google Scholar 

  48. W. Benenson et al., Phys. Rev. C 9, 2130 (1974)

    Article  ADS  Google Scholar 

  49. R.G.H. Robertson et al., Phys. Rev. Lett. 32, 1207 (1974)

    Article  ADS  Google Scholar 

  50. R.J. Holt et al., Phys. Lett. B 69, 55 (1977)

    Article  ADS  MathSciNet  Google Scholar 

  51. G.J. KeKelis et al., Phys. Rev. C 17, 1929 (1978)

    Article  ADS  Google Scholar 

  52. C.L. Woods et al., Nucl. Phys. A 484, 145 (1988)

    Article  ADS  Google Scholar 

  53. J.C. Batchelder et al., Phys. Rev. C 48, 2593 (1993)

    Article  ADS  Google Scholar 

  54. A. Lépine-Szily et al., Phys. Rev. C 65, 054318 (2002)

    Article  ADS  Google Scholar 

  55. T. Zerguerras et al., Eur. Phys. J. A 20, 389 (2004)

    Article  ADS  Google Scholar 

  56. I. Mukha et al., Phys. Rev. Lett. 99, 182501 (2007)

    Article  ADS  Google Scholar 

  57. V.Z. Goldberg et al., Phys. Lett. B 692, 307 (2010)

    Article  ADS  Google Scholar 

  58. A.M. Rogers et al., Phys. Rev. Lett. 106, 252503 (2011)

    Article  ADS  Google Scholar 

  59. F. Wamers et al., Phys. Rev. Lett. 112, 132501 (2014)

    Article  ADS  Google Scholar 

  60. I. Mukha et al., Phys. Rev. Lett. 115, 202501 (2015)

    Article  ADS  Google Scholar 

  61. G. Breit, E.U. Condon, R.D. Present, Phys. Rev. 50, 825 (1936)

    Article  ADS  Google Scholar 

  62. J.D. Jackson, J.M. Blatt, Rev. Mod. Phys. 22, 77 (1950)

    Article  ADS  Google Scholar 

  63. M.F. Mohar et al., Phys. Rev. C 38, 737 (1988)

    Article  ADS  Google Scholar 

  64. M.F. Mohar et al., Phys. Rev. Lett. 66, 1571 (1991)

    Article  ADS  Google Scholar 

  65. B. Blank et al., Phys. Rev. Lett. 74, 4611 (1995)

    Article  ADS  Google Scholar 

  66. http://creativecommons.org/licenses/by/3.0/

  67. S. Hofmann et al., Z. Phys. A 291, 53 (1979)

    Article  ADS  Google Scholar 

  68. S. Hofmann et al., Z. Phys. A 299, 281 (1981)

    Article  ADS  Google Scholar 

  69. S. Hofmann et al., Z. Phys. A 305, 111 (1982)

    Article  ADS  Google Scholar 

  70. O. Klepper et al., Z. Phys. A 305, 125 (1982)

    Article  ADS  Google Scholar 

  71. T. Faestermann et al., Phys. Lett. B 137, 23 (1984)

    Article  ADS  Google Scholar 

  72. R.D. Page et al., Phys. Rev. Lett. 68, 1287 (1992)

    Article  ADS  Google Scholar 

  73. P.J. Sellin et al., Phys. Rev. C 47, 1933 (1993)

    Article  ADS  Google Scholar 

  74. K. Livingston et al., Phys. Lett. B 312, 46 (1993)

    Article  ADS  Google Scholar 

  75. R.J. Tighe et al., Phys. Rev. C 49, R2871 (1994)

    Article  ADS  Google Scholar 

  76. R.D. Page et al., Phys. Rev. Lett. 72, 1798 (1994)

    Article  ADS  MathSciNet  Google Scholar 

  77. C.N. Davids et al., Phys. Rev. Lett. 76, 592 (1996)

    Article  ADS  Google Scholar 

  78. B. Blank et al., Phys. Rev. Lett. 77, 2893 (1996)

    Article  ADS  Google Scholar 

  79. C.N. Davids et al., Phys. Rev. C 55, 2255 (1997)

    Article  ADS  Google Scholar 

  80. C.N. Davids et al., Phys. Rev. Lett. 80, 1849 (1998)

    Article  ADS  Google Scholar 

  81. J.C. Batchelder et al., Phys. Rev. C 57, R1042 (1998)

    Article  ADS  Google Scholar 

  82. K. Rykaczewski et al., Phys. Rev. C 60, 011301 (1999)

    Article  ADS  Google Scholar 

  83. G. Poli et al., Phys. Rev. C 59, R2979 (1999)

    Article  ADS  Google Scholar 

  84. B. Blank et al., Phys. Rev. Lett. 84, 1116 (2000)

    Article  ADS  Google Scholar 

  85. F. Soramel et al., Phys. Rev. C 63, 031304 (2001)

    Article  ADS  Google Scholar 

  86. C.N. Davids et al., Phys. Rev. C 69, 011302 (2004)

    Article  ADS  Google Scholar 

  87. H. Kettunen et al., Phys. Rev. C 69, 054323 (2004)

    Article  ADS  Google Scholar 

  88. P.J. Woods et al., Phys. Rev. C 69, 051302 (2004)

    Article  ADS  Google Scholar 

  89. B. Blank et al., Phys. Rev. Lett. 94, 232501 (2005)

    Article  ADS  Google Scholar 

  90. A.P. Robinson et al., Phys. Rev. Lett. 95, 032502 (2005)

    Article  ADS  Google Scholar 

  91. D.T. Joss et al., Phys. Lett. B 641, 34 (2006)

    Article  ADS  Google Scholar 

  92. R.D. Page et al., Phys. Rev. C 75, 061302 (2007)

    Article  ADS  Google Scholar 

  93. M.C. Drummond et al., Phys. Rev. C 89, 064309 (2014)

    Article  ADS  Google Scholar 

  94. C. Dossat et al., Phys. Rev. C 72, 054315 (2005)

    Article  ADS  Google Scholar 

  95. R.J. Irvine et al., Phys. Rev. C 55, R1622 (1997)

    Article  ADS  Google Scholar 

  96. A. Gillitzer et al., Z. Phys. A 326, 107 (1987)

    ADS  Google Scholar 

  97. S. Hofmann et al., in Proceedings of the 7th International Conference on Atomic Masses and Fundamental Constants, AMCO-7 Darmstadt, 1984, vol. 26, ed. by O. Klepper (THD, Schriftenreiche Wissenschaft und Technik, Darmstadt, 1984), p. 184

    Google Scholar 

  98. S. Hofmann et al., Z. Phys. A 333, 107 (1989)

    ADS  Google Scholar 

  99. D.D. Bogdanov et al., Sov. J. Nucl. Phys. 16, 491 (1973)

    Google Scholar 

  100. J. Uusitalo et al., Phys. Rev. C 59, R2975 (1999)

    Article  ADS  Google Scholar 

  101. M. Pfützner et al., Eur. Phys. J. A 14, 279 (2002)

    Article  ADS  Google Scholar 

  102. J. Giovinazzo et al., Phys. Rev. Lett. 89, 102501 (2002)

    Article  ADS  Google Scholar 

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Correspondence to Michael Thoennessen .

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Thoennessen, M. (2016). Unbound Isotopes. In: The Discovery of Isotopes. Springer, Cham. https://doi.org/10.1007/978-3-319-31763-2_16

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