Positron scattering from pyrazine
Positron scattering from pyrazine
复制标题
吡嗪的正电子散射
DOI:
10.1103/physreva.104.042807
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发表时间:
2021
影响因子:
2.9
通讯作者:
Edwards D
中科院分区:
文献类型:
--
作者:
Edwards D
The present paper provides a joint experimental and theoretical study of positron scattering from pyrazine. Experimental data were measured employing a low-energy positron beamline, and covered an energy range from 1 to 79 eV. Cross sections were measured for total scattering, total elastic scattering, positronium formation, direct ionization, and the sum of the total discrete electronic-state excitation processes. In addition, measured total electronic excitation cross sections for the individualandstates are also reported. Finally, experimental elastic differential cross sections (DCSs), here in the energy rangeeV, are also presented. Results from two theoretical approaches are given: theR-matrix approach and the independent atom method with screening corrected additivity rule and interference terms. Where a comparison between our experimental and theoretical results could be made, the level of accord varied from being quite good to marginal depending on the actual scattering process under consideration. Last, a comparison between the present elastic DCS results and those from our earlier study on positron scattering from pyrimidine [Palihawadana , Phys. Rev. A 88, 012717 (2013)PLRAAN1050-294710.1103/PhysRevA.88.012717] showed a somewhat unexpected level of agreement.
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DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
Rui Zhang;P. G. Galiatsatos;J. Tennyson
通讯作者:
J. Tennyson
影响因子:
4.4
作者:
Z. Cheong;G. M. Moreira;M. Bettega;F. Blanco;G. García;M. Brunger;R. D. White;J. Sullivan
通讯作者:
J. Sullivan
DOI:
10.1063/1.3650236
发表时间:
2011
期刊:
The Journal of chemical physics
影响因子:
--
作者:
Zdeněk Mašína;Jimena D. Gorfinkielb
通讯作者:
Jimena D. Gorfinkielb
影响因子:
4.4
作者:
P. Palihawadana;James Sullivan;Stephen Buckman;M. Brunger
通讯作者:
M. Brunger
影响因子:
4.4
作者:
D. Stevens;Tamara Babij;J. Machacek;Stephen Buckman;M. Brunger;R. D. White;G. García;F. Blanco;L. Ellis;James Sullivan
通讯作者:
James Sullivan