Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions
A technique for electron spectroscopy which yields full two-dimensional momentum distributions for continuum electrons has been used to study ejected electrons from single ionization of He by [Formula Presented] and proton projectiles at low velocities. Projectile velocities of 1.63, 1.38, and 1.16...
Guardado en:
| Autores principales: | , , , , , , , , , , , |
|---|---|
| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10502947_v54_n2_p1394_Kravis |
| Aporte de: |
| id |
todo:paper_10502947_v54_n2_p1394_Kravis |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_10502947_v54_n2_p1394_Kravis2023-10-03T15:59:02Z Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions Kravis, S.D. Abdallah, M. Cocke, C.L. Lin, C.D. Stockli, M. Walch, B. Wang, Y.D. Olson, R.E. Rodríguez, V.D. Wu, W. Pieksma, M. Watanabe, N. A technique for electron spectroscopy which yields full two-dimensional momentum distributions for continuum electrons has been used to study ejected electrons from single ionization of He by [Formula Presented] and proton projectiles at low velocities. Projectile velocities of 1.63, 1.38, and 1.16 a.u. for [Formula Presented] and 2.39, 1.71, 1.15,. 85, and 0.63 a.u. for protons were used. All spectra show much broader distributions along the beam than transverse to the beam. For the case of proton bombardment, the spectra are strongly influenced by both target and projectile potentials, maximizing near the velocity of the saddle in the potential between the two receding ion cores for the lowest projectile velocities. For [Formula Presented] projectiles, the spectra appear to be dominated by the projectile potential and the center of the distribution is strongly shifted toward the projectile velocity. Theoretical results from the continuum-distorted-wave–eikonal-initial-state and classical-trajectory–Monte Carlo methods are in rather good agreement with the proton data but do not agree well with the [Formula Presented] data. © 1996 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10502947_v54_n2_p1394_Kravis |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
A technique for electron spectroscopy which yields full two-dimensional momentum distributions for continuum electrons has been used to study ejected electrons from single ionization of He by [Formula Presented] and proton projectiles at low velocities. Projectile velocities of 1.63, 1.38, and 1.16 a.u. for [Formula Presented] and 2.39, 1.71, 1.15,. 85, and 0.63 a.u. for protons were used. All spectra show much broader distributions along the beam than transverse to the beam. For the case of proton bombardment, the spectra are strongly influenced by both target and projectile potentials, maximizing near the velocity of the saddle in the potential between the two receding ion cores for the lowest projectile velocities. For [Formula Presented] projectiles, the spectra appear to be dominated by the projectile potential and the center of the distribution is strongly shifted toward the projectile velocity. Theoretical results from the continuum-distorted-wave–eikonal-initial-state and classical-trajectory–Monte Carlo methods are in rather good agreement with the proton data but do not agree well with the [Formula Presented] data. © 1996 The American Physical Society. |
| format |
JOUR |
| author |
Kravis, S.D. Abdallah, M. Cocke, C.L. Lin, C.D. Stockli, M. Walch, B. Wang, Y.D. Olson, R.E. Rodríguez, V.D. Wu, W. Pieksma, M. Watanabe, N. |
| spellingShingle |
Kravis, S.D. Abdallah, M. Cocke, C.L. Lin, C.D. Stockli, M. Walch, B. Wang, Y.D. Olson, R.E. Rodríguez, V.D. Wu, W. Pieksma, M. Watanabe, N. Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions |
| author_facet |
Kravis, S.D. Abdallah, M. Cocke, C.L. Lin, C.D. Stockli, M. Walch, B. Wang, Y.D. Olson, R.E. Rodríguez, V.D. Wu, W. Pieksma, M. Watanabe, N. |
| author_sort |
Kravis, S.D. |
| title |
Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions |
| title_short |
Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions |
| title_full |
Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions |
| title_fullStr |
Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions |
| title_full_unstemmed |
Single ionization of He by low-velocity protons and [Formula Presented]: Ejected electron momentum distributions |
| title_sort |
single ionization of he by low-velocity protons and [formula presented]: ejected electron momentum distributions |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v54_n2_p1394_Kravis |
| work_keys_str_mv |
AT kravissd singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT abdallahm singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT cockecl singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT lincd singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT stocklim singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT walchb singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT wangyd singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT olsonre singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT rodriguezvd singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT wuw singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT pieksmam singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions AT watanaben singleionizationofhebylowvelocityprotonsandformulapresentedejectedelectronmomentumdistributions |
| _version_ |
1782028437875064832 |