Symmetries of the similarity renormalization group for nuclear forces

被引：17

作者：

Timoteo, V. S. ^{[1
]}

Szpigel, S. ^{[2
]}

Ruiz Arriola, E. ^{[3
,4
]}

机构：

[1] Univ Estadual Campinas, UNICAMP, Fac Technol, BR-13484332 Limeira, SP, Brazil

[2] Univ Presbiteriana Mackenzie, Fac Comp & Informat, BR-01302907 Sao Paulo, Brazil

[3] Univ Granada, Dept Fis Atom Mol & Nucl, E-18071 Granada, Spain

[4] Univ Granada, Inst Carlos Fis Teor & Computac 1, E-18071 Granada, Spain

来源：

PHYSICAL REVIEW C | 2012年 / 86卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

FLOW-EQUATIONS; 2-NUCLEON;

D O I：

10.1103/PhysRevC.86.034002

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 analyze the role played by long-distance symmetries within the context of the similarity renormalization group (SRG) approach, which is based on phase-shift-preserving continuous unitary transformations that evolve Hamiltonians with a cutoff on energy differences. We find that there is a SRG cutoff for which almost perfect fulfillment of Wigner symmetry is found. We discuss the possible consequences of such a finding.

引用

页数：14

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