Electron correlations in the antiproton energy-loss distribution in He
Entity
UAM. Departamento de Física Teórica de la Materia Condensada; UAM. Centro de Investigación en Fisica de la Materia Condensada (IFIMAC)Publisher
American Physical SocietyDate
2018-07-13Citation
10.1103/PhysRevA.98.012707
Physical Review A 98.1 (2018): 012707
ISSN
2469-9926 (print); 2469-9934 (online)DOI
10.1103/PhysRevA.98.012707Funded by
The present paper was supported by Grants No. FWF-SFB049 (Nextlite), No. FWF-SFB041 (VICOM), No. WWTF MA14-002, Doctoral College Grant No. FWF-W1243 (Solids4Function), by the National Research, Development and Innovation Office (NKFIH) Grant No. KH 126886, and by the high performance computing resources of the Babeş-Bolyai University. J.F. acknowledges funding from the European Research Council under Grant No. ERC-2016-STG-714870 and by the Ministerio de Economía y Competitividad (Spain) through a Ramón y Cajal grant. X.- M.T. was supported by a Grants-in-Aid for Scientific Research (Grant No. JP16K05495) from the Japan Society for the Promotion of ScienceProject
info:eu-repo/grantAgreement/EC/H2020/714870Editor's Version
https://doi.org/10.1103/PhysRevA.98.012707Subjects
Electronic differential energy-transfer; Antiprotons; Comparison; Electron; Bohr stragglin; FísicaRights
© 2018 American Physical SocietyAbstract
We present ab initio calculations of the electronic differential energy-transfer cross sections for antiprotons with energies between 3 keV and 1 MeV interacting with helium. By comparison with simulations employing the mean-field description based on the single-active electron approximation we are able to identify electron correlation effects in the stopping and straggling cross sections. Most remarkably, we find that straggling exceeds the celebrated Bohr straggling limit when correlated shake-up processes are included.
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Google Scholar:Borbély, S.
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Tong, X. M.
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Nagele, Stefan
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Feist, Johannes
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Březinová, I.
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Lackner, F.
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Nagy, L.
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Tokési, K.
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Burgdörfer, J.
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