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Band crossing phenomena inN=Z nuclei a probe toT=0 pairing correlations? |
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| Authors: | G de Angelis C Fahlander A Gadea E Farnea W Gelletly A Aprahamian D Bazzacco F Becker P G Bizzeti A Bizzeti-Sona F Brandolini D De Acuña M De Poli J Eberth D Foltescu S M Lenzi S Lunardi T Martinez D R Napoli P Pavan C M Petrache C Rossi Alvarez D Rudolph B Rubio S Skoda P Spolaore G Thomas C Ur M Weiszflog R Wyss |
| Institution: | 1. Laboratori Nazionali di Legnaro, INFN, Legnaro, Italy 2. Instituto de Física Corpuscular, Valencia, Spain 3. Department of Physics, University of Surrey, Guildford, England 4. Department of Physics, University of Notre Dame, Notre Dame, USA 5. Sezione di Padova, Dipartimento di Fisica dell’Università and INFN, Padova, Italy 6. Institut für Kernphysik, Universit?t zu K?ln, Germany 7. Sezione di Firenze, Dipartimento di Fisica dell’Università and INFN, Firenze, Italy 8. Sektion Physik der Universit?t München, D-85748, Garching, Germany 9. The Svedberg Laboratory, University of Uppsala, Uppsala, Sweden 10. KTH-K?rnfysik, Frescativ. 24, S-104 05, Stockholm, Sweden |
| Abstract: | The structure of theN=Z nuclei60Zn,62Ga,64Ge, and72Kr has been investigated at GASP. Total Routhian surface (TRS) calculations have been performed for theN=36, 38 and 40 Kr isotones. In the case of72Kr the four quasi-particleg 9/2 alignment is observed to be significantly delayed in rotational frequency with respect to the heavier Kr isotopes. Such a delay contradicts the predictions of mean field calculations and may be viewed as the first sign of additional correlations in theT=0 pairing channel. |
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