Observation of a Four-Electron Auger Process in Near-K-Edge Photoionization of Singly Charged Carbon Ions

被引：65

作者：

Mueller, A. ^{[1
]}

Borovik, A., Jr. ^{[1
]}

Buhr, T. ^{[1
,2
]}

Hellhund, J. ^{[1
]}

Holste, K. ^{[1
]}

Kilcoyne, A. L. D. ^{[3
]}

Klumpp, S.

Martins, M. ^{[4
]}

Ricz, S. ^{[1
,5
]}

Viefhaus, J. ^{[6
]}

Schippers, S. ^{[1
]}

机构：

[1] Univ Giessen, Inst Atom & Mol Phys, D-35392 Giessen, Germany

[2] Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany

[3] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

[4] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[5] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary

[6] DESY, FS PE, D-22607 Hamburg, Germany

来源：

PHYSICAL REVIEW LETTERS | 2015年 / 114卷 / 01期

关键词：

CROSS-SECTION; C+; THRESHOLD; ATOMS;

D O I：

10.1103/PhysRevLett.114.013002

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Single, double, and triple ionization of C1+ ions by single photons is investigated in the energy range of 286-326 eV, i.e., in the range from the lowest-energy K-vacancy resonances to well beyond the K-shell ionization threshold. Clear signatures of C1+(1s2s(2)2p(2) D-2, P-2) resonances are found in the triple-ionization channel. The only possible mechanism producing C-4 (1s(2)) via these resonances is direct triple-Auger decay, i.e., a four-electron process with simultaneous emission of three electrons.

引用

页数：5

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