Fully differential study of ionization in p + H2 collisions near electron-projectile velocity matching

被引:17
作者
Hasan, A. [1 ,2 ,3 ]
Arthanayaka, T. [1 ,2 ]
Lamichhane, B. R. [1 ,2 ]
Sharma, S. [1 ,2 ]
Gurung, S. [1 ,2 ]
Remolina, J. [1 ,2 ]
Akula, S. [1 ,2 ]
Madison, D. H. [1 ,2 ]
Ciappina, M. F. [4 ]
Rivarola, R. D. [5 ,6 ]
Schulz, M. [1 ,2 ]
机构
[1] Missouri Univ Sci Technol, Dept Phys, Rolla, MO 65409 USA
[2] Missouri Univ Sci Technol, LAMOR, Rolla, MO 65409 USA
[3] UAE Univ, Dept Phys, POB 15551, Al Ain, U Arab Emirates
[4] Max Planck Inst Quantum Opt, Hans Kopfermann Str 1, D-85748 Garching, Germany
[5] Consejo Nacl Invest Cient & Tecn, Inst Fis Rosario, Lab Colis Atom, Bv 27 Febrero 210 Bis, RA-2000 Rosario, Santa Fe, Argentina
[6] Univ Nacl Rosario, Bv 27 Febrero 210 Bis, RA-2000 Rosario, Santa Fe, Argentina
基金
美国国家科学基金会;
关键词
Ionization; energy-loss spectroscopy; few-body problem; cold target recoil-ion momentum spectroscopy; SINGLE-IONIZATION; MOMENTUM SPECTROSCOPY; CONTINUUM STATES; CROSS-SECTIONS; RECOIL-ION; COLLISIONS; IMPACT; HELIUM; HE; ELECTRONS;
D O I
10.1088/0953-4075/49/4/04LT01
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have performed a kinematically complete experiment on ionization of H-2 by 75 keV proton impact for electrons ejected with a speed close to the projectile speed. The fully differential data are compared to a three-body distorted wave and a continuum distorted wave-eikonal initial state calculation. Large discrepancies between experiment and theory, as well as between both calculations, are found. These probably arise from a strong coupling between the ionization and capture channels, which is not accounted for by theory.
引用
收藏
页数:6
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