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Gamma decay of pygmy states from inelastic scattering of ions

  • A. BraccoEmail author
  • F. C. L. Crespi
  • E. G. Lanza
Review

Abstract.

An overview of relevant results on the study of 1 states focusing on their excitation with nuclear probes is given. Results obtained for the 90Zr , 124Sn , and 208Pb nuclei using the (17O,17O′γ) reaction are compared with available data obtained with the (γ, γ′, and (p, p′) reactions. These comparisons allow to learn on the nature of the populated states, particularly the E1 states, whose isospin character is presently poorly known. The DWBA description of the data is discussed in terms of different form factors, standard collective form factor and form factors obtained by folding microscopically calculated transition densities. The relevant aspects related to the used theoretical approach are also presented. The main objective of the analyses is the extraction of the values of the fraction of the energy weighted sum rule strength for the isoscalar dipole excitation. For completeness, in all cases, the DWBA analysis was made also for the excitations of 2+ and 3 states.

Keywords

Form Factor 208Pb Transition Density Symmetry Energy Coulomb Excitation 
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.
    D. Savran et al., Prog. Part. Nucl. Phys. 70, 210 (2013)CrossRefADSGoogle Scholar
  2. 2.
    I. Tanihata, H. Savajols, R. Kanungo, Prog. Part. Nucl. Phys. 68, 215 (2013)CrossRefADSGoogle Scholar
  3. 3.
    P. Adrich et al., Phys. Rev. Lett. 95, 132501 (2005)CrossRefADSGoogle Scholar
  4. 4.
    O. Wieland et al., Phys. Rev. Lett. 102, 092502 (2009)CrossRefADSGoogle Scholar
  5. 5.
    D.M. Rossi et al., Phys. Rev. Lett. 111, 242503 (2013)CrossRefADSGoogle Scholar
  6. 6.
    J. Gibelin et al., Phys. Rev. Lett. 101, 212503 (2008)CrossRefADSGoogle Scholar
  7. 7.
    A. Tamii et al., Phys. Rev. Lett. 107, 062502 (2011)CrossRefADSGoogle Scholar
  8. 8.
    U. Kneissl, H.H. Pitz, A. Zilges, Prog. Part. Nucl. Phys. 37, 349 (1996)CrossRefADSGoogle Scholar
  9. 9.
    S. Goriely, Phys. Lett. B 436, 10 (1998)MathSciNetCrossRefADSGoogle Scholar
  10. 10.
    S. Goriely, E. Khan, M. Samyn, Nucl. Phys. A 739, 331 (2004)CrossRefADSGoogle Scholar
  11. 11.
    E. Litvinova et al., Phys. Rev. C 79, 054312 (2009)CrossRefADSGoogle Scholar
  12. 12.
    B. Alex Brown, Phys. Rev. Lett. 85, 5296 (2000)CrossRefADSGoogle Scholar
  13. 13.
    R.J. Furnstahl, Nucl. Phys. A 706, 85 (2002)CrossRefADSGoogle Scholar
  14. 14.
    J. Piekarewicz et al., Phys. Rev. C 85, 041302 (2012)CrossRefADSGoogle Scholar
  15. 15.
    P.-G. Reinhard, W. Nazarewicz, Phys. Rev. C 81, 051303 (2010)CrossRefADSGoogle Scholar
  16. 16.
    J. Piekarewicz, Phys. Rev. C 83, 034319 (2011)CrossRefADSGoogle Scholar
  17. 17.
    J. Piekarewicz, Phys. Rev. C 73, 044325 (2006)CrossRefADSGoogle Scholar
  18. 18.
    A. Klimkiewicz et al., Phys. Rev. C 76, 051603 (2007)CrossRefADSGoogle Scholar
  19. 19.
    N. Tsoneva, H. Lenske, Phys. Rev. C 77, 024321 (2008)CrossRefADSGoogle Scholar
  20. 20.
    A. Carbone et al., Phys. Rev. C 81, 041301 (2010)CrossRefADSGoogle Scholar
  21. 21.
    D. Vretenar et al., Phys. Rev. C 85, 044317 (2012)CrossRefADSGoogle Scholar
  22. 22.
    J.M. Lattimer et al., Annu. Rev. Nucl. Part. Sci. 62, 485 (2012)CrossRefADSGoogle Scholar
  23. 23.
    T. Hashimoto, arXiv:1503.08321v1 [nucl-ex] (2015)
  24. 24.
    M.B. Tsang et al., Phys. Rev. C 86, 015803 (2012)CrossRefADSGoogle Scholar
  25. 25.
    C.M. Tarbert et al., Phys. Rev. Lett. 112, 242502 (2014)CrossRefADSGoogle Scholar
  26. 26.
    N. Paar et al., Rep. Prog. Phys. 70, 691 (2007)CrossRefADSGoogle Scholar
  27. 27.
    I. Hamamoto, H. Sagawa, Phys. Rev. C 53, R1492 (1996)CrossRefADSGoogle Scholar
  28. 28.
    F. Catara et al., Nucl. Phys. A 624, 449 (1997)CrossRefADSGoogle Scholar
  29. 29.
    E.G. Lanza et al., Phys. Rev. C 79, 054615 (2009)CrossRefADSGoogle Scholar
  30. 30.
    E.G. Lanza et al., Phys. Rev. C 84, 064602 (2011)CrossRefADSGoogle Scholar
  31. 31.
    T. Inakura et al., Phys. Rev. C 84, 021302 (2011)CrossRefADSGoogle Scholar
  32. 32.
    E. Yüksel et al., Nucl. Phys. A 877, 35 (2012)CrossRefADSGoogle Scholar
  33. 33.
    X. Roca-Maza et al., Phys. Rev. C 85, 024601 (2012)CrossRefADSGoogle Scholar
  34. 34.
    J. Terasaki, J. Engel, Phys. Rev. C 74, 044301 (2006)CrossRefADSGoogle Scholar
  35. 35.
    K. Yoshida, N. Van Giai, Phys. Rev. C 78, 064316 (2008)CrossRefADSGoogle Scholar
  36. 36.
    M. Martini et al., Phys. Rev. C 83, 064309 (2011)MathSciNetCrossRefADSGoogle Scholar
  37. 37.
    H. Hergert et al., Phys. Rev. C 83, 064317 (2011)CrossRefADSGoogle Scholar
  38. 38.
    P. Papakonstantinou et al., Phys. Lett. B 709, 270 (2012)CrossRefADSGoogle Scholar
  39. 39.
    D. Gambacurta et al., Phys. Rev. C 84, 034301 (2011)CrossRefADSGoogle Scholar
  40. 40.
    M. Tohyama, T. Nakatsukasa, Phys. Rev. C 85, 031302 (2012)CrossRefADSGoogle Scholar
  41. 41.
    T. Hartmann et al., Phys. Rev. Lett. 93, 192501 (2004)CrossRefADSGoogle Scholar
  42. 42.
    N. Tsoneva et al., Nucl. Phys. A 731, 273 (2004)CrossRefADSGoogle Scholar
  43. 43.
    J. Liang et al., Phys. Rev. C 75, 054320 (2007)CrossRefADSGoogle Scholar
  44. 44.
    D. Vretenar et al., Nucl. Phys. A 692, 496 (2001)CrossRefADSGoogle Scholar
  45. 45.
    N. Paar et al., Phys. Rev. C 67, 034312 (2003)CrossRefADSGoogle Scholar
  46. 46.
    N. Paar et al., Phys. Rev. Lett. 103, 032502 (2009)CrossRefADSGoogle Scholar
  47. 47.
    D. Peña et al., Phys. Rev. C 79, 034311 (2009)CrossRefGoogle Scholar
  48. 48.
    E. Litvinova et al., Phys. Rev. C 78, 014312 (2008)CrossRefADSGoogle Scholar
  49. 49.
    E. Litvinova et al., Phys. Rev. Lett. 105, 022502 (2010)CrossRefADSGoogle Scholar
  50. 50.
    G.R. Satchler, W.G. Love, Phys. Rep. 55, 183 (1979)CrossRefADSGoogle Scholar
  51. 51.
    G.R. Satchler, Direct Nuclear Reactions (Oxford University Press, 1983)Google Scholar
  52. 52.
    G. Bertsch, J. Horysowicz, H. McManus, W.G. Love, Nucl. Phys. A 284, 399 (1977)CrossRefADSGoogle Scholar
  53. 53.
    Dao T. Khoa, W. von Oertzen, Phys. Lett. B 342, 6 (1995)CrossRefADSGoogle Scholar
  54. 54.
    Dao T. Khoa et al., Phys. Rev. C 56, 954 (1997)CrossRefADSGoogle Scholar
  55. 55.
    T.J. Deal, Nucl. Phys. A 217, 210 (1973)CrossRefADSGoogle Scholar
  56. 56.
    M.N. Harakeh, A.E.L. Dieperink, Phys. Rev. C 23, 2329 (1981)CrossRefADSGoogle Scholar
  57. 57.
    E.G. Lanza et al., Phys. Rev. C, 054607 (2015)Google Scholar
  58. 58.
    P.D. Kunz, DWUCK4 code for DWBA at http://spot.colorado.edu/kunz/DWBA.html
  59. 59.
    T.D. Poelhekken et al., Phys. Lett. B 278, 423 (1992)CrossRefADSGoogle Scholar
  60. 60.
    K. Govaert et al., Phys. Rev. C 57, 2229 (1998)CrossRefADSGoogle Scholar
  61. 61.
    J. Endres et al., Phys. Rev. C 85, 064331 (2012)CrossRefADSGoogle Scholar
  62. 62.
    V. Derya et al., Phys. Lett. B 730, 288 (2014)CrossRefADSGoogle Scholar
  63. 63.
    V. Derya et al., J. Phys. Conf. Ser. 366, 012012 (2012)CrossRefADSGoogle Scholar
  64. 64.
    J. Endres et al., Phys. Rev. Lett. 105, 212503 (2010)CrossRefADSGoogle Scholar
  65. 65.
    J. Endres et al., Phys. Rev. C 80, 034302 (2009)CrossRefADSGoogle Scholar
  66. 66.
    D. Savran et al., Phys. Rev. Lett. 97, 172502 (2006)CrossRefADSGoogle Scholar
  67. 67.
    P. Decowski, H. Morsch, W. Benenson, Phys. Lett. B 101, 147 (1981)CrossRefADSGoogle Scholar
  68. 68.
    E.G. Lanza et al., Phys. Rev. C 89, 041601 (2014)CrossRefADSGoogle Scholar
  69. 69.
    A. Bracco, F.C.L. Crespi, EPJ Web of Conferences 38, 03001 (2012)CrossRefGoogle Scholar
  70. 70.
    F.C.L. Crespi et al., Phys. Rev. Lett. 113, 012501 (2014)CrossRefADSGoogle Scholar
  71. 71.
    L. Pellegri et al., Phys. Lett. B 738, 519 (2014)CrossRefADSGoogle Scholar
  72. 72.
    M. Krzysiek et al., Phys. Scr. 89, 054016 (2014)CrossRefADSGoogle Scholar
  73. 73.
    F.C.L. Crespi et al., Phys. Rev. C 91, 024323 (2015)CrossRefADSGoogle Scholar
  74. 74.
    J.R. Beene et al., Phys. Rev. C 39, 1307 (1989)CrossRefADSGoogle Scholar
  75. 75.
    J.R. Beene et al., Phys. Rev. C 41, 920 (1990)CrossRefADSGoogle Scholar
  76. 76.
    J. Barrette et al., Phys. Lett. B 209, 182 (1988)CrossRefADSGoogle Scholar
  77. 77.
    J.R. Beene et al., Nucl. Phys. A 482, 407 (1988)CrossRefADSGoogle Scholar
  78. 78.
    D.J. Horen et al., Phys. Rev. C 44, 128 (1991)CrossRefADSGoogle Scholar
  79. 79.
    A. Bracco et al., Nucl. Phys. A 482, 421c (1988)CrossRefADSGoogle Scholar
  80. 80.
    S. Landowne et al., Phys. Lett. B 90, 389 (2014)CrossRefADSGoogle Scholar
  81. 81.
    A.M. van der Berg et al., Nucl. Phys. A 578, 238 (1994)CrossRefADSGoogle Scholar
  82. 82.
    J. Blomgren et al., Nucl. Phys. A 578, 239 (1994)CrossRefGoogle Scholar
  83. 83.
    P. Heckman et al., Phys. Lett. B 555, 43 (2003)CrossRefADSGoogle Scholar
  84. 84.
    C. Cabot, Conference Proceedings Of the XXIX Winter Meeting on Nuclear Physics in Bormio (Italy), Jan. 14--19, 1991Google Scholar
  85. 85.
    R. Liguori Neto et al., Nucl. Phys. A 560, 733 (1993)CrossRefADSGoogle Scholar
  86. 86.
    R.L. Auble et al., Phys. Rev. C 41, 2620 (1990)CrossRefADSGoogle Scholar
  87. 87.
    D. Mengoni et al., Nucl. Instum. Methods Phys. Res. A 764, 241 (2014)CrossRefADSGoogle Scholar
  88. 88.
    S. Akkoyun et al., Nucl. Instrum. Methods A 668, 26 (2012)CrossRefADSGoogle Scholar
  89. 89.
    A. Gadea et al., Nucl. Instrum. Methods A 654, 88 (2011)CrossRefADSGoogle Scholar
  90. 90.
    S. Agostinelli et al., Nucl. Instrum. Methods A 506, 250 (2003)CrossRefADSGoogle Scholar
  91. 91.
    E. Farnea et al., Nucl. Instrum. Methods A 621, 331 (2010)CrossRefADSGoogle Scholar
  92. 92.
    N. Ryezayeva et al., Phys. Rev. Lett. 89, 272502 (2002)CrossRefADSGoogle Scholar
  93. 93.
    T. Shizuma et al., Phys. Rev. C 78, 061303 (2008)CrossRefADSGoogle Scholar
  94. 94.
    L. Pellegri et al., Phys. Rev. C 92, 014330 (2015)CrossRefADSGoogle Scholar
  95. 95.
    RF Casten, Nuclear Structure from a Simple Perspective (Oxford University Press, Oxford 1990)Google Scholar
  96. 96.
    I.J. Thompson, Comput. Phys. Rep. 7, 167 (1988)CrossRefADSGoogle Scholar
  97. 97.
  98. 98.
    T.P. Sjoreen et al., Phys. Rev. C 29, 1370 (1984)CrossRefADSGoogle Scholar
  99. 99.
    J. Heisenberg et al., Phys. Rev. C 29, 97 (1984)CrossRefADSGoogle Scholar
  100. 100.
    N. Tsoneva, H. Lenske, Phys. Lett. B 695, 174 (2011)CrossRefADSGoogle Scholar
  101. 101.
    R. Schwengner et al., Phys. Rev. C 78, 064314 (2008)CrossRefADSGoogle Scholar
  102. 102.
    C. Iwamoto et al., Phys. Rev. Lett. 108, 262501 (2012)CrossRefADSGoogle Scholar
  103. 103.
    A. Krugmann et al., EPJ Web of Conferences 66, 02060 (2014)CrossRefGoogle Scholar

Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  1. 1.Dipartimento di Fisica dell’Università degli Studi di MilanoMilanoItaly
  2. 2.INFNSezione di MilanoMilanoItaly
  3. 3.INFNSezione di CataniaCataniaItaly

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