Transfer and/or breakup modes in the 6He+209Bi reaction near the Coulomb barrier

被引：215

作者：

Aguilera, EF

Kolata, JJ

Nunes, FM

Becchetti, FD

DeYoung, PA

Goupell, M

Guimaraes, V

Hughey, B

Lee, MY

Lizcano, D

Martinez-Quiroz, E

Nowlin, A

O'Donnell, TW

Peaslee, GF

Peterson, D

Santi, P

White-Stevens, R

机构：

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

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

[3] Inst Super Tecn, Ctr Multidisciplinar Astrofis, P-1096 Lisbon, Portugal

[4] Univ Fernando Pessoa, Dept Sci & Technol, P-4200 Oporto, Portugal

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

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

[7] Hope Coll, Dept Chem, Holland, MI 49422 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.84.5058

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Reaction products from the interaction of He-6 with Bi-209 have been measured at energies near the Coulomb barrier. A He-4 group of remarkable intensity, which dominates the total reaction cross section, has been observed. The angular distribution of the group suggests that it results primarily from a direct nuclear process. it is likely that this transfer and/or breakup channel is the doorway state that accounts for the previously observed large sub-barrier fusion enhancement in this system.

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收藏

页码：5058 / 5061

页数：4

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