Helium clustering in neutron-rich Be isotopes

被引：41

作者：

Ashwood, NI ^{[1
]}

Freer, M

Ahmed, S

Angélique, JC

Bouchat, V

Catford, WN

Clarke, NM

Curtis, N

Dorvaux, O

Fulton, BR

Hanappe, F

Kerckx, Y

Labiche, M

Lecouey, JL

Lemmon, RC

Marqués, FM

Materna, T

Ninane, A

Normand, G

Orr, NA

Pain, S

Soic, N

Stuttgé, L

Timis, C

Unshakova, A

Winfield, JS

Ziman, VA

机构：

[1] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[2] ISMRA Univ Caen, Phys Corpusculaire Lab, F-14050 Caen, France

[3] Univ Caen, IN2P3, CNRS, F-14050 Caen, France

[4] Free Univ Brussels, B-1050 Brussels, Belgium

[5] Univ Surrey, Sch Elect & Phys Sci, Guildford GU2 7XH, Surrey, England

[6] Univ Strasbourg 1, IN2P3 CNRS, Inst Rech Subatom, F-67037 Strasbourg, France

[7] Univ York, Dept Phys, York YO10 5DD, N Yorkshire, England

[8] Univ Paisley, Dept Elect Engn & Phys, Paisley PA1 2BE, Renfrew, Scotland

[9] CLRC Daresbury Lab, Warrington WA4 4AD, Cheshire, England

[10] Catholic Univ Louvain, Inst Phys, Louvain, Belgium

[11] Joint Inst Nucl Res, Dubna 141980, Moscow Region, Russia

[12] Ist Nazl Fis Nucl, Lab Nazl Sud, I-95123 Catania, Italy

来源：

PHYSICS LETTERS B | 2004年 / 580卷 / 3-4期

基金：

英国工程与自然科学研究理事会;

关键词：

clustering; breakup; knockout; cross-sections; anti-symmetrized molecular dynamics; beryllium;

D O I：

10.1016/j.physletb.2003.11.035

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Measurements of the helium-cluster breakup and neutron removal cross-sections for neutron-rich Be isotopes Be-10-12,Be-14 are presented. These have been studied in the 30 to 42 MeV/nucleon energy range where reaction measurements are proposed to be sensitive to the cluster content of the ground-state wave-function. These measurements provide a comprehensive survey of the decay processes of the Be isotopes by which the valence neutrons are removed revealing the underlying alpha-alpha core-cluster structure. The measurements indicate that clustering in the Be isotopes remains important up to the drip-line nucleus Be-14 and that the dominant helium-cluster structure in the neutron-rich Be isotopes corresponds to alpha-Xn-alpha. (C) 2003 Published by Elsevier B.V.

引用

页码：129 / 136

页数：8

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