Quantum Monte Carlo calculations of nuclei with A<=7

被引:1013
作者
Pudliner, BS
Pandharipande, VR
Carlson, J
Pieper, SC
Wiringa, RB
机构
[1] UNIV ILLINOIS, DEPT PHYS, URBANA, IL 61801 USA
[2] LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA
[3] ARGONNE NATL LAB, DIV PHYS, ARGONNE, IL 60439 USA
来源
PHYSICAL REVIEW C | 1997年 / 56卷 / 04期
关键词
D O I
10.1103/PhysRevC.56.1720
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
We report quantum Monte Carlo calculations of ground and low-lying excited states for nuclei with A less than or equal to 7 using a realistic Hamiltonian containing the Argonne upsilon(18) two-nucleon and Urbana IX three-nucleon potentials. A detailed description of the Green's-function Monte Carlo algorithm for systems with state-dependent potentials is given and a number of tests of its convergence and accuracy are performed. We find that the Hamiltonian being used results in ground states of both Li-6 and Li-7 that are stable against breakup into subclusters, but somewhat underbound compared to experiment. We also have results for He-6, He-7, and their isobaric analogs. The known excitation spectra of all these nuclei are reproduced reasonably well and we predict a number of excited states in He-6 and He-7. We also present spin-polarized one-body and several different two-body density distributions. These are the first microscopic calculations that directly produce nuclear shell structure from realistic interactions that fit NAI scattering data.
引用
收藏
页码:1720 / 1750
页数:31
相关论文
共 53 条
[1]   ENERGY-LEVELS OF LIGHT-NUCLEI A = 5-10 [J].
AJZENBERGSELOVE, F .
NUCLEAR PHYSICS A, 1988, 490 (01) :1-225
[2]  
[Anonymous], J COMPUT PHYS
[3]   3-BODY CORRELATIONS IN FEW-BODY NUCLEI [J].
ARRIAGA, A ;
PANDHARIPANDE, VR ;
WIRINGA, RB .
PHYSICAL REVIEW C, 1995, 52 (05) :2362-2368
[4]   2-BODY NUCLEAR DENSITY DETERMINED FROM QUASI-ELASTIC ELECTRON-SCATTERING IN THE 3-NUCLEON SYSTEM [J].
BECK, DH .
PHYSICAL REVIEW LETTERS, 1990, 64 (03) :268-270
[5]   ISOBARIC QUARTETS IN NUCLEI [J].
BENENSON, W ;
KASHY, E .
REVIEWS OF MODERN PHYSICS, 1979, 51 (03) :527-540
[6]   PHASE-SHIFT ANALYSIS OF ALL PROTON-PROTON SCATTERING DATA BELOW TLAB=350 MEV [J].
BERGERVOET, JR ;
VANCAMPEN, PC ;
KLOMP, RAM ;
DEKOK, JL ;
RIJKEN, TA ;
STOKS, VGJ ;
DESWART, JJ .
PHYSICAL REVIEW C, 1990, 41 (04) :1435-1452
[7]  
BOHR A, 1969, NUCLEAR STRUCTURE, V1
[8]   RELATIVISTIC EFFECTS IN NUCLEAR-PHYSICS [J].
BROWN, GE .
PHYSICA SCRIPTA, 1987, 36 (02) :209-213
[9]  
CARLSON J, 1990, NUCL PHYS A, V508, pC141, DOI 10.1016/0375-9474(90)90470-7
[10]   GREENS-FUNCTION MONTE-CARLO STUDY OF LIGHT-NUCLEI [J].
CARLSON, J .
PHYSICAL REVIEW C, 1987, 36 (05) :2026-2033