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[Fizinfo] [Mind] magfizikai szeminarium: maj.20. kedd 11:00

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  • From: "Janos Timar" <timar AT>
  • To: Fizinfo AT
  • Subject: [Fizinfo] [Mind] magfizikai szeminarium: maj.20. kedd 11:00
  • Date: Tue, 13 May 2008 12:15:36 +0200
  • List-archive: <>
  • List-id: ELFT HÍRADÓ <>



2008. majus 20-an, kedden 11:00 orakor

az MTA Atommagkutato Intezetenek nagy eloadotermeben
(a ciklotron epuletenek 3.emeleten)

Prof. J.F. Sharpey-Schafer
Fokvaros, Dél-afrikai Koztarsasag


c. eloadast tart,

melyre minden erdeklodot szeretettel varunk.

Cseh Jozsef

cseh AT

Az eloadas kivonata:

It has recently become clear [1] that the first excited 0+ states in the
N = 90 and N = 88 nuclei are not beta-vibrational excitations but are rather
a "second vacuum" state in the style of the "pairing isomers" described by
Ragnarsson and Broglia [2]. This second vacuum |02+> has gamma and
octupole vibrations built upon it in the same manner as the ground state
vacuum |01+>. There is no sign of beta-vibrations, which must be above
1.5MeV in excitation energy near the particle-hole excitations of |01+>.

This is very bad news for both the compilers of nuclear data [3], the writers
of textbooks (for example [4-7]) and for the authors of the flurry of
publications [8-14] during the last decade basing their interpretation of the
structure of the rare-earth transitional nuclei on the Bohr Hamiltonian [15].

The relevant data on Gd and Sm nuclei will be presented and the consequences
for current theories of the structure of the Transitional Rare Earth nuclei
will be discussed.

[1] J F Sharpey-Schafer, S M Mullins, R A Bark, E Gueorguieva, J Kau, F
Komati, J J Lawrie, P Maine, S H T Murray, N J Ncapayi and P Vymers; Proc.
XLVI Int. Winter Meeting on Nuc. Phys.; Bormio, Italy (2008); Univ. degli
Studi di Milano Eds. I Iori, A Tarantola, (to be published).
[2] I. Ragnarsson and R. A. Broglia, Nucl. Phys. A263, 315 (1976).
[3] R B Firestone, V S Shirley et al; Table of Isotopes 8th ed (1996) Wiley
[4] J M Eisenberg and W Greiner; Nuclear Models Vol. 1, 3rd Ed. (1987)
Elsvier, p 185
[5] W Greiner and J A Maruhm; Nuclear Models (1996) Springer, p 159
[6] P Ring and P Schuck; The Nuclear Many Body Problem, 3rd printing (2004)
Springer, p 24
[7] K Heyde; Basic Ideas and Concepts in Nuclear Physics, 3rd Ed. (2004)
IoP, p 432
[8] F Iachello; PRL 87(2001)052502
[9] R F Casten and N V Zamfir; PRL 87(2001)052503
[10] A Leviatan and J N Ginocchio; PRL 90(2003)212501
[11] R Krücken et al; PRL 88(2002)232501
[12] J Jolie et al; PRL 89(2002)182502
[13] L Fortunato; Eur. Phys. J. A (2005) ..................
[14] M A Caprio; Phys. Rev. C72 (2005) 054323
[15] A Bohr; Mat. Fys. Medd. Dan. Vid. Selsk. 24 (1952) No.14


  • [Fizinfo] [Mind] magfizikai szeminarium: maj.20. kedd 11:00, Janos Timar, 05/13/2008

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