Photoabsorption on 4He with a realistic nuclear force

被引：79

作者：

Gazit, D ^{[1
]}

Bacca, S

Barnea, N

Leidemann, W

Orlandini, G

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[2] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[3] Univ Trent, Dipartimento Fis, I-38050 Povo, Italy

[4] Ist Nazl Fis Nucl, Grp Coll Trento, I-38050 Povo, Italy

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.96.112301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The He-4 total photoabsorption cross section is calculated with the realistic nucleon-nucleon potential Argonne V18 and the three-nucleon force (3NF) Urbana IX. Final state interaction is included rigorously via the Lorentz integral transform method. A rather pronounced giant resonance with peak cross sections of 3.0 (3.2) mb is obtained with (without) the 3NF. Above 50 MeV strong 3NF effects, up to 35%, are present. Good agreement with experiment is found close to threshold. A comparison in the giant resonance region is inconclusive, since data do not show a unique picture.

引用

页数：4

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