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Titolo:
PHASE COEXISTENCE IN TRANSITIONAL NUCLEI AND THE INTERACTING-BOSON MODEL
Autore:
IACHELLO F; ZAMFIR NV; CASTEN RF;
Indirizzi:
YALE UNIV,SLOANE PHYS LAB,CTR THEORET PHYS NEW HAVEN CT 06520 YALE UNIV,WNSL NEW HAVEN CT 06520 CLARK UNIV WORCESTER MA 01610 INST ATOM PHYS R-76900 BUCHAREST ROMANIA
Titolo Testata:
Physical review letters
fascicolo: 6, volume: 81, anno: 1998,
pagine: 1191 - 1194
SICI:
0031-9007(1998)81:6<1191:PCITNA>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
STATES; LIMIT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
14
Recensione:
Indirizzi per estratti:
Citazione:
F. Iachello et al., "PHASE COEXISTENCE IN TRANSITIONAL NUCLEI AND THE INTERACTING-BOSON MODEL", Physical review letters, 81(6), 1998, pp. 1191-1194

Abstract

Recent data provide evidence for coexisting phases at low energy in the spherical-deformed transitional nucleus Sm-152. The nature of the wave functions at the spherical-deformed phase transition in nuclei is analyzed within the framework of the interacting-boson model. It is shown that in the U(5)-SU(3) transition, two phases coexist in a very small region of parameter space around the critical value of the controlparameter xi. The coexistence region with two minima in the potentialshrinks to zero as one moves to the U(5)-O(6) transition. Implications for other systems are briefly mentioned. [S0031-9007(98)06839-2].

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Documento generato il 22/09/20 alle ore 07:56:34