One-neutron knockout from individual single-particle states of 11Be

被引：238

作者：

Aumann, T ^{[1
]}

Navin, A

Balamuth, DP

Bazin, D

Blank, B

Brown, BA

Bush, JE

Caggiano, JA

Davids, B

Glasmacher, T

Guimaraes, V

Hansen, PG

Ibbotson, RW

Karnes, D

Kolata, JJ

Maddalena, V

Pritychenko, B

Scheit, H

Sherrill, BM

Tostevin, JA

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

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

[3] Bhabha Atom Res Ctr, Div Nucl Phys, Trombay 400085, Mumbai, India

[4] Univ Penn, Dept Phys, Philadelphia, PA 19104 USA

[5] CEN Bordeaux Gradignan, F-33175 Gradignan, France

[6] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[7] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[8] Univ Surrey, Sch Phys Sci, Dept Phys, Guildford GU2 5XH, Surrey, England

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.84.35

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The structure of the halo nucleus Be-11 has been studied using the reaction Be-9(Be-11,Be-10 + gamma) at 60 MeV/nucleon. The ground State structure of Be-11 is determined by comparing the experimental cross sections to a calculation combining spectroscopic factors from the shell model with l-dependent single-particle cross sections obtained in an eikonal model. This experiment shows the dominant 1s single-particle character of the Be-11 ground state and indicates a small contribution of 0d admixture in the wave function. After correction for the approximately 22% intensity to excited levels,a clean and precise distribution of parallel momentum for knockout from the 1s halo wave function is obtained for the first time.

引用

页码：35 / 38

页数：4

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