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001-es BibID:	BIBFORM131822
035-os BibID:	(WoS)000371724800005 (Scopus)84960360681
Első szerző:	Gulyás László (fizikus)
Cím:	Single and multiple electron removal and fragmentation in collisions of protons with water molecules / L. Gulyás, S. Egri, H. Ghavaminia, A. Igarashi
Dátum:	2016
ISSN:	2469-9926 2469-9934
Megjegyzések:	Single and multiple electron removal processes (capture and ionization) in proton-H2O collisions have been investigated applying the continuum distorted wave with eikonal initial-state model within the framework of independent electron approach. Probabilities and cross sections for electron capture are derived from the same quantities evaluated for ionization using the continuity of transition quantities across the ionization threshold. Dissociation and fragmentation cross sections for the H2Oq+ (q = 1?3) ions have been evaluated by considering branching ratios that include the effect of multiple electron removal transitions. The results are compared with experimental and other theoretical data in the range of impact energies from 30 kev to 5 MeV. Generally, the evaluated cross sections and fragmentation yields show good agreement with experiments at impact energies above 100-150 keV.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk proton collision electron removal
Megjelenés:	Physical Review A. - 93 : 3 (2016), p. 032704 - 032713. -
További szerzők:	Egri Sándor (1966-) (fizikus) Ghavaminia, H. Igarashi, Akinori
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM104027
035-os BibID:	(WoS)000461050600006 (Scopus)85063285271
Első szerző:	Gulyás László
Cím:	Theoretical investigation of the fully differential cross sections for single ionization of He in collisions with 75-keV protons / L. Gulyás, S. Egri, A. Igarashi
Dátum:	2019
ISSN:	1050-2947 2469-9934
Megjegyzések:	We present a theoretical investigation of the single ionization of He in collisions with H+ projectile ions at 75-keV impact energy. Using the frameworks of the independent-electron model and the impact parameter picture, fully differential cross sections (FDCS) are evaluated in the continuum distorted-wave with eikonal initial-state approximation (CDW-EIS). Comparisons are made to the recent measurements of Schulz et al. [Phys. Rev. A 73, 062704 (2006)] and Arthanayaka et al. [J. Phys. B: At. Mol. Opt. Phys. 49, 13LT02 (2016)]. Strong influence of the internuclear interaction and effects of target core polarization due to the presence of the projectile ion are observed. Comparing the present results to experimental data and other theoretical predictions, it has been found that the CDW-EIS method qualitatively reproduces structures in the FDCS. Projectile coherence effects are investigated by representing the projectile beam as a Gaussian wave packet. Evidence of interference effects due to projectile-electron and projectile-target core interactions are discussed and the need for further theoretical investigations is proposed.
Tárgyszavak:	Természettudományok Fizikai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Physical Review A. - 99 : 3 (032704) (2019), p. 1-15. -
További szerzők:	Egri Sándor (1966-) (fizikus) Igarashi, Akinori
Pályázati támogatás:	K-128621 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: