Restoration of the Ikeda sum rule in self-consistent quasiparticle random-phase approximation

被引：27
作者：
Delion, DS
Dukelsky, J
Schuck, P
机构：
[1] INST ESTRUCT MAT, E-28006 MADRID, SPAIN
[2] UNIV GRENOBLE 1, CNRS, IN2P3, INST NUCL SCI, F-38026 GRENOBLE, FRANCE
来源：
PHYSICAL REVIEW C | 1997年 / 55卷 / 05期
关键词：
D O I：
10.1103/PhysRevC.55.2340
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
The so-called self-consistent quasiparticle random phase approximation, accounting for a better treatment of ground-state correlations, is applied to a schematic Hamiltonian, describing the Fermi beta decay process. The self-consistent procedure coupling the BCS minimum with the quantum fluctuations yields an exact fulfillment of the Ikeda sum rule. The role of the ground-state correlations is analyzed in the case of the double beta decay process.
引用
收藏
页码：2340 / 2344
页数：5
相关论文
共 27 条
[1]   GROUND-STATE CORRELATIONS BEYOND RPA [J].
CATARA, F ;
DANG, ND ;
SAMBATARO, M .
NUCLEAR PHYSICS A, 1994, 579 (1-2) :1-12
[2]   EXACTLY SOLUBLE SHELL-MODEL WITH R(5) SYMMETRY EXHIBITING 2-DIMENSIONAL VIBRATIONS AND ROTATIONS [J].
CHATTOPADHYAY, PK ;
KREJS, F ;
KLEIN, A .
PHYSICS LETTERS B, 1972, B 42 (03) :315-318
[3]   SUPPRESSION OF MATRIX-ELEMENTS OF THE 2-NU-BETA-BETA DECAY BY THE COMPETITION BETWEEN SPIN-FLIP-LIKE AND NON-SPIN-FLIP-LIKE EXCITATIONS [J].
CIVITARESE, O ;
SUHONEN, J ;
FAESSLER, A .
NUCLEAR PHYSICS A, 1995, 591 (02) :195-208
[4]   SCHEMATIC STUDY OF PERTURBATIVE EFFECTS ON THE 2-NEUTRINO DOUBLE-BETA DECAY TO EXCITED-STATES [J].
CIVITARESE, O ;
SUHONEN, J .
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1994, 20 (09) :1441-1446
[5]   PERTURBATIVE TREATMENT OF THE 2-NEUTRINO DOUBLE BETA-DECAY TO EXCITED 2(+) STATES [J].
CIVITARESE, O ;
SUHONEN, J .
NUCLEAR PHYSICS A, 1994, 578 (1-2) :62-76
[6]   INTRINSIC STATE GENERATING GROUND-STATE ROTATIONAL BAND OF A DEFORMED NUCLEUS AND ITS APPROXIMATE EQUIVALENCE TO AN ALGEBRAIC-VARIATIONAL TREATMENT - ILLUSTRATION BY AN EXACTLY SOLUBLE MODEL [J].
DASSO, C ;
KLEIN, A .
NUCLEAR PHYSICS A, 1973, A210 (03) :443-457
[7]   VALIDITY OF AN ALGEBRAIC-VARIATIONAL APPROACH TO THEORY OF COLLECTIVE MOTION FOR AN EXACTLY SOLUBLE SHELL-MODEL WITH R(5) SYMMETRY [J].
DASSO, C ;
KREJS, F ;
KLEIN, A ;
CHATTOPADHYAY, PK .
NUCLEAR PHYSICS A, 1973, A210 (03) :429-442
[8]   Self consistent RPA for superfluid Fermi systems [J].
Dukelsky, J ;
Schuck, P .
PHYSICS LETTERS B, 1996, 387 (02) :233-238
[9]  
DUKELSKY J, 1990, NUCL PHYS A, V512, P466, DOI 10.1016/0375-9474(90)90081-V
[10]   VARIATIONAL RANDOM PHASE APPROXIMATION FOR THE ANHARMONIC-OSCILLATOR [J].
DUKELSKY, J ;
SCHUCK, P .
MODERN PHYSICS LETTERS A, 1991, 6 (26) :2429-2435
123