Reaction cross sections for 8B, 7Be, and 6Li+58Ni near the Coulomb barrier: Proton-halo effects

被引：195

作者：

Aguilera, E. F. ^{[1
]}

Martinez-Quiroz, E. ^{[1
]}

Lizcano, D. ^{[1
]}

Gomez-Camacho, A. ^{[1
]}

Kolata, J. J. ^{[2
]}

Lamm, L. O. ^{[2
]}

Guimaraes, V. ^{[3
]}

Lichtenthaler, R. ^{[3
]}

Camargo, O. ^{[3
]}

Becchetti, F. D. ^{[4
]}

Jiang, H. ^{[4
]}

DeYoung, P. A. ^{[5
]}

Mears, P. J. ^{[5
]}

Belyaeva, T. L. ^{[6
]}

机构：

[1] Inst Nacl Invest Nucl, Dept Aceleradores, Mexico City 11801, DF, Mexico

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

[3] Univ Sao Paulo, Inst Fis, BR-05389970 Sao Paulo, Brazil

[4] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA

[5] Hope Coll, Dept Phys, Holland, MI 49422 USA

[6] Univ Autonoma Estado Mexico, Toluca, Mexico

来源：

PHYSICAL REVIEW C | 2009年 / 79卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

ELASTIC-SCATTERING; BREAKUP; NUCLEAR; FUSION; ENERGIES; BEAMS; DISSOCIATION; F-17; C-12; HE-6;

D O I：

10.1103/PhysRevC.79.021601

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：

Elastic scattering of B-8, Be-7, and Li-6 on a Ni-58 target has been measured at energies near the Coulomb barrier. Optical-model fits were made to the experimental angular distributions, and total reaction cross sections were deduced. A comparison with other systems provides striking evidence for proton-halo effects on B-8 reactions. As opposed to the situation for the neutron-halo nucleus He-6, for which particle transfer dominates, the "extra" cross section observed for B-8 appears to result entirely from projectile breakup.

引用

页数：5

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