Absolute photoionization cross section for C+

被引：0

作者：

Folkmann, F ^{[1
]}

Hansen, JE ^{[1
]}

Kjeldsen, H ^{[1
]}

Knudsen, H ^{[1
]}

Rasmussen, MS ^{[1
]}

West, JB ^{[1
]}

Andersen, T ^{[1
]}

机构：

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

来源：

PHYSICS OF ELECTRONIC AND ATOMIC COLLISIONS | 2000年 / 500卷

关键词：

D O I：

暂无

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The absolute photoionization cross section for the astrophysically important C+ ion has been measured for the first time thus allowing a test of the predicted cross section from the Opacity Project. The measurements are performed with a new ion - photon merged beam setup at the ASTRID storage ring utilizing an undulator beam line. In addition to the predicted 2s2p(P-3) np D-2 and S-2 autoionizing resonances, the P-2 states which are not included in the theoretical predictions also contribute significantly to the ionization yield below the 2s2p(3P) limit. The cross section is determined with a precision of 10% and lies 5-25% below the theoretical prediction at 24-37 eV.

引用

页码：218 / 222

页数：5

共 50 条

[31] Measurement of the absolute branching fraction for Λc+ → Λμ+νμ [J].

Ablikim, M. ;

Achasov, M. N. ;

Ahmed, S. ;

Ai, X. C. ;

Albayrak, O. ;

Albrecht, M. ;

Ambrose, D. J. ;

Amoroso, A. ;

An, F. F. ;

An, Q. ;

Bai, J. Z. ;

Bakina, O. ;

Ferroli, R. Baldini ;

Ban, Y. ;

Bennett, D. W. ;

Bennett, J. V. ;

Berger, N. ;

Bertani, M. ;

Bettoni, D. ;

Bian, J. M. ;

Bianchi, E. ;

Boger, E. ;

Boyko, I. ;

Briere, R. A. ;

Cai, H. ;

Cai, X. ;

Cakir, O. ;

Calcaterra, A. ;

Cao, G. F. ;

Cetin, S. A. ;

Chang, J. F. ;

Chelkov, G. ;

Chen, G. ;

Chen, H. S. ;

Chen, J. C. ;

Chen, M. L. ;

Chen, S. ;

Chen, S. J. ;

Chen, X. ;

Chen, X. R. ;

Chen, Y. B. ;

Chu, X. K. ;

Cibinetto, G. ;

Dai, H. L. ;

Dai, J. P. ;

Dbeyssi, A. ;

Dedovich, D. ;

Deng, Z. Y. ;

Denig, A. ;

Denysenko, I. .

PHYSICS LETTERS B, 2017, 767 :42-47

[32] PHOTOIONIZATION CROSS-SECTION MEASUREMENT OF THE C V-ION [J].

JANNITTI, E ;

NICOLOSI, P ;

TONDELLO, G .

PHYSICS LETTERS A, 1988, 131 (03) :186-189

[33] The absolute photoionization cross section of the mercapto radical (SH) from threshold up to 15.0 eV [J].

Hrodmarsson, Helgi Rafn ;

Garcia, Gustavo A. ;

Nahon, Laurent ;

Loison, Jean-Christophe ;

Gans, Berenger .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2019, 21 (46) :25907-25915

[34] Resonances in the photoionization cross section of M@C60 endohedrals [J].

Baltenkov, AS .

PHYSICS LETTERS A, 1999, 254 (3-4) :203-209

[35] Measurements of the absolute photoionization cross section of Fe+ ions from 15.8 to 180 eV [J].

Kjeldsen, H ;

Kristensen, B ;

Folkmann, F ;

Andersen, T .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2002, 35 (17) :3655-3668

[36] Absolute cross section for photoionization of CO+ leading to longlived metastable CO2+ [J].

Andersen, T ;

Kjeldsen, H ;

Knudsen, H ;

Folkmann, F .

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2001, 34 (10) :L327-L332

[37] ABSOLUTE MEASUREMENT OF THE PHOTOIONIZATION CROSS-SECTION OF THE EXCITED 7S STATE OF CESIUM [J].

GILBERT, SL ;

NOECKER, MC ;

WIEMAN, CE .

PHYSICAL REVIEW A, 1984, 29 (06) :3150-3153

[38] Absolute photoionization cross section measurements of O II ions from 29.7 to 46.2 eV [J].

Aguilar, A ;

Covington, AM ;

Hinojosa, G ;

Phaneuf, RA ;

Alvarez, I ;

Cisneros, C ;

Bozek, JD ;

Dominguez, I ;

Sant'Anna, MM ;

Schlachter, AS ;

Nahar, SN ;

McLaughlin, BM .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 2003, 146 (02) :467-477

[39] Resonances in the photoionization cross section of M@C60 endohedrals [J].

Baltenkov, A.S. .

Physics Letters, Section A: General, Atomic and Solid State Physics, 1999, 254 (3-4) :203-209

[40] First measurements of the absolute branching fraction of Λc(2625)+ → Λc+ π+π- and upper limit on Λc(2595)+ → Λc+π+π- [J].

Ablikim, M. ;

Achasov, M. N. ;

Adlarson, P. ;

Ai, X. C. ;

Aliberti, R. ;

Amoroso, A. ;

An, M. R. ;

An, Q. ;

Bai, Y. ;

Bakina, O. ;

Balossino, I. ;

Ban, Y. ;

Bao, H. R. ;

Batozskaya, V. ;

Begzsuren, K. ;

Berger, N. ;

Berlowski, M. ;

Bertani, M. ;

Bettoni, D. ;

Bianchi, F. ;

Bianco, E. ;

Bortone, A. ;

Boyko, I. ;

Briere, R. A. ;

Brueggemann, A. ;

Cai, H. ;

Cai, X. ;

Calcaterra, A. ;

Cao, G. F. ;

Cao, N. ;

Cetin, S. A. ;

Chang, J. F. ;

Chang, W. L. ;

Che, G. R. ;

Chelkov, G. ;

Chen, C. ;

Chen, Chao ;

Chen, G. ;

Chen, H. S. ;

Chen, M. L. ;

Chen, S. J. ;

Chen, S. L. ;

Chen, S. M. ;

Chen, T. ;

Chen, X. R. ;

Chen, X. T. ;

Chen, Y. B. ;

Chen, Y. Q. ;

Chen, Z. J. ;

Choi, S. K. .

PHYSICAL REVIEW D, 2024, 109 (11)

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