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Cranking in isospace
KTH, Tidigare Institutioner                               , Fysik.
KTH, Tidigare Institutioner                               , Fysik.
2004 (engelsk)Inngår i: European Physical Journal A, ISSN 1434-6001, E-ISSN 1434-601X, Vol. 19, nr 1, s. 33-44Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The response of isovector and isoscalar pair fields to generalized rotation in isospace is studied. Analytical expressions for constant gap solutions for different limiting cases of the model are derived. In particular, the connections between gauge angles among pairing gaps and the position of the iso-cranking axis are investigated in N = Z nuclei. The two domains of collective and noncollective rotation in space are generalized to isospace. The amplitudes for pair-transfer of T = 0 and T = 1 pairs are calculated. It is shown that the structure of the T = 0 state in odd-odd nuclei prevents any enhancement of pair transfer also in the presence of strong isoscalar pairing correlations. The energy differences of the T = 0 and T = 1 excitations in odd-odd nuclei are qualitatively reproduced by Total-Routhian-Surface calculations.

sted, utgiver, år, opplag, sider
2004. Vol. 19, nr 1, s. 33-44
Emneord [en]
proton pairing correlations, 2-nucleon stripping reaction, ground-state masses, wigner energy, rich nuclei, mean-field, deformations, t=0, n=z, symmetry
HSV kategori
Identifikatorer
URN: urn:nbn:se:kth:diva-23097DOI: 10.1140/epja/i2003-10111-6ISI: 000188207800005Scopus ID: 2-s2.0-0942300529OAI: oai:DiVA.org:kth-23097DiVA, id: diva2:341795
Merknad
QC 20100525Tilgjengelig fra: 2010-08-10 Laget: 2010-08-10 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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