Singly ionizing 100-MeV/amu C6+ + He collisions with small momentum transfer

被引：32

作者：

Kouzakov, Konstantin A. ^{[1
,2
]}

Zaytsev, Sergey A. ^{[3
]}

Popov, Yuri V. ^{[2
]}

Takahashi, Masahiko ^{[4
]}

机构：

[1] Moscow MV Lomonosov State Univ, Fac Phys, Dept Nucl Phys & Quantum Theory Collis, Moscow 119991, Russia

[2] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow 119991, Russia

[3] Khabarovsk State Tech Univ, Dept Phys, Khabarovsk 680035, Russia

[4] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

来源：

PHYSICAL REVIEW A | 2012年 / 86卷 / 03期

基金：

俄罗斯基础研究基金会;

关键词：

IMPACT IONIZATION; RECOIL-ION;

D O I：

10.1103/PhysRevA.86.032710

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a theoretical analysis of single ionization of He by C6+ at an impact energy of 100 Mev/amu and a momentum transfer Q = 0.75 a.u. Relativistic, second-order Born, and distorted-wave effects on fully differential cross sections are examined. It is demonstrated that neither of them is able to explain the serious discrepancy observed between theory and experiment when an electron is ejected perpendicular to the direction of momentum transfer. We show, however, that experimental uncertainties, including those due to a velocity spread of the He gas atoms in a supersonic jet, can be responsible for the observed disagreement.

引用

页数：8

共 25 条

[1] [Anonymous], 1977, Theory of ionization of atoms by electron impact
[2] Berestetskii V. B., 1980, Course of Theoretical Physics
[3] Post-prior discrepancies in CDW-EIS calculations for ion impact ionization fully differential cross sections
Ciappina, M. F.
Cravero, W. R.
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (05) : 1091 - 1100
[4] Monte Carlo event generators in atomic collisions: A new tool to tackle the few-body dynamics
Ciappina, M. F.
Kirchner, T.
Schulz, M.
[J]. COMPUTER PHYSICS COMMUNICATIONS, 2010, 181 (04) : 813 - 820
[5] Fully differential cross sections for the single ionization of He by C6+ ions
Colgan, J.
Pindzola, M. S.
Robicheaux, F.
Ciappina, M. F.
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2011, 44 (17)
[6] Analysis of experimental data for ion-impact single ionization of helium with Monte Carlo event generators based on quantum theory
Duerr, M.
Najjari, B.
Schulz, M.
Dorn, A.
Moshammer, R.
Voitkiv, A. B.
Ullrich, J.
[J]. PHYSICAL REVIEW A, 2007, 75 (06):
[7] Manipulating Atomic Fragmentation Processes by Controlling the Projectile Coherence
Egodapitiya, K. N.
Sharma, S.
Hasan, A.
Laforge, A. C.
Madison, D. H.
Moshammer, R.
Schulz, M.
[J]. PHYSICAL REVIEW LETTERS, 2011, 106 (15)
[8] Critical comparison between theory and experiment for C6++He fully differential ionization cross sections
Fiol, J.
Otranto, S.
Olson, R. E.
[J]. JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2006, 39 (14) : L285 - L290
[9] Effects of the final-state electron-ion interactions on the fully differential cross sections for heavy-particle-impact ionization of helium
Harris, A. L.
Madison, D. H.
Peacher, J. L.
Foster, M.
Bartschat, K.
Saha, H. P.
[J]. PHYSICAL REVIEW A, 2007, 75 (03):
[10] Landau L. D., 1977, QUANTUM MECH NONRELA, V3rd

← 1 2 3 →