Ionization of helium and argon by very slow antiproton impact

被引：58

作者：

Knudsen, H. ^{[1
]}

Kristiansen, H. -P. E. ^{[1
]}

Thomsen, H. D. ^{[1
]}

Uggerhoj, U. I. ^{[1
]}

Ichioka, T. ^{[1
]}

Moller, S. P. ^{[2
]}

Hunniford, C. A. ^{[3
]}

McCullough, R. W. ^{[3
]}

Charlton, M. ^{[4
]}

Kuroda, N. ^{[5
]}

Nagata, Y. ^{[5
]}

Torii, H. A. ^{[5
]}

Yamazaki, Y. ^{[5
,6
]}

Imao, H. ^{[6
]}

Andersen, H. H. ^{[7
]}

Tokesi, K. ^{[8
]}

机构：

[1] Univ Aarhus, Dept Phys & Astron, DK-8000 Aarhus C, Denmark

[2] Univ Aarhus, Inst Storage Ring Facil, DK-8000 Aarhus C, Denmark

[3] Queens Univ Belfast, Dept Phys, Belfast BT7 1NN, Antrim, North Ireland

[4] Univ Swansea, Dept Phys, Swansea, W Glam, Wales

[5] Univ Tokyo, Inst Phys, Tokyo 1138654, Japan

[6] RIKEN, Atom Phys Lab, Saitama, Japan

[7] Univ Copenhagen, Niels Bohr Inst, DK-1168 Copenhagen, Denmark

[8] ATOMKI, Debrecen, Hungary

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 04期

基金：

匈牙利科学研究基金会; 英国工程与自然科学研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.101.043201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The total cross sections for single ionization of helium and single and double ionization of argon by antiproton impact have been measured in the kinetic energy range from 3 to 25 keV using a new technique for the creation of intense slow antiproton beams. The new data provide benchmark results for the development of advanced descriptions of atomic collisions and we show that they can be used to judge, for the first time, the validity of the many recent theories.

引用

页数：4

共 50 条

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