COMPLETE OH-OMEGA CALCULATIONS OF GAMOW-TELLER STRENGTHS FOR NUCLEI IN THE IRON REGION

被引：26

作者：

DEAN, DJ ^{[1
]}

RADHA, PB ^{[1
]}

LANGANKE, K ^{[1
]}

ALHASSID, Y ^{[1
]}

KOONIN, SE ^{[1
]}

ORMAND, WE ^{[1
]}

机构：

[1] YALE UNIV,CTR THEORET PHYS,SLOANE PHYS LAB,NEW HAVEN,CT 06511

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 72卷 / 26期

关键词：

D O I：

10.1103/PhysRevLett.72.4066

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Gamow-Teller strengths for selected nuclei in the iron region (A approximately 56) have been investigated via shell-model Monte Carlo calculations with realistic interactions in the complete fp basis. Results for all cases show significant quenching relative to single-particle estimates, in quantitative agreement with (n,p) data. The T = 0 residual interaction and the f7/2-f5/2 spin-orbit splitting are shown to play major roles in the quenching mechanism. Calculated B(E2,2(1+) --> 0(1+)) values are in fair agreement with experiment using effective charges of e(p) = 1.1e and e(n) = 0.1e.

引用

页码：4066 / 4069

页数：4

共 22 条

[11]

KOONIN SE, IN PRESS PHYS LETT B

[12] REACTION MATRIX ELEMENTS FOR OF-1P SHELL NUCLEI [J].

KUO, TTS ;

BROWN, GE .

NUCLEAR PHYSICS A, 1968, A114 (02) :241-&

[13] MONTE-CARLO EVALUATION OF PATH-INTEGRALS FOR THE NUCLEAR SHELL-MODEL [J].

LANG, GH ;

JOHNSON, CW ;

KOONIN, SE ;

ORMAND, WE .

PHYSICAL REVIEW C, 1993, 48 (04) :1518-1545

[14]

MYRES WD, 1966, NUCL PHYS, V81, P1

[15] ON THE ENERGETICS OF THE GAMOW-TELLER RESONANCES [J].

NAKAYAMA, K ;

GALEAO, AP ;

KRMPOTIC, F .

PHYSICS LETTERS B, 1982, 114 (04) :217-221

[16] PCAC AND RENORMALIZATION OF WEAK AXIAL-VECTOR VERTEX IN NUCLEI [J].

OHTA, K ;

WAKAMATSU, M .

PHYSICS LETTERS B, 1974, 51 B (04) :325-328

[17] QUENCHING OF AXIAL-VECTOR COUPLING-CONSTANT IN BETA-DECAY AND PION-NUCLEUS OPTICAL-POTENTIAL [J].

RHO, M .

NUCLEAR PHYSICS A, 1974, A231 (03) :493-503

[18] NEW EFFECTIVE INTERACTIONS FOR THE 0F1P SHELL [J].

RICHTER, WA ;

VANDERMERWE, MG ;

JULIES, RE ;

BROWN, BA .

NUCLEAR PHYSICS A, 1991, 523 (02) :325-353

[19] THE FE-54,FE-56)(N, P) MN-54,MN-56 REACTIONS AT E(N)=97 MEV [J].

RONNQVIST, T ;

CONDE, H ;

OLSSON, N ;

RAMSTROM, E ;

ZORRO, R ;

BLOMGREN, J ;

HAKANSSON, A ;

RINGBOM, A ;

TIBELL, G ;

JONSSON, O ;

NILSSON, L ;

RENBERG, PU ;

VANDERWERF, SY ;

UNKELBACH, W ;

BRADY, FP .

NUCLEAR PHYSICS A, 1993, 563 (02) :225-246

[20] EXCITATION-ENERGIES OF THE GIANT GAMOW-TELLER RESONANCE STATES [J].

SUZUKI, T .

PHYSICS LETTERS B, 1981, 104 (02) :92-94

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