Double excitation of the hydrogen molecule by fast charged particle impact

被引:1
作者
Bodea, D [1 ]
Nagy, L [1 ]
机构
[1] Univ Babes Bolyai, Fac Phys, Cluj Napoca 3400, Romania
关键词
D O I
10.1088/0953-4075/33/1/104
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Theoretical calculation for the double excitation of the hydrogen molecule to the (2p sigma(u)(2))(1)Sigma(g)(+) and (2p sigma(u)2p pi(u))(1)Pi(g) states induced by fast charged particles are reported for the first time. Electron correlation and time-ordering are considered in order to reproduce the dependence of the cross sections on the sign of the projectile charge. We have also analysed the dependence of the cross sections on the angle between the molecular axes and the beam direction. Our theoretical results are compared with the experimental data.
引用
收藏
页码:L27 / L36
页数:10
相关论文
共 14 条
[1]   MULTIPLE IONIZATION OF HE, NE, AND AR BY FAST PROTONS AND ANTIPROTONS [J].
ANDERSEN, LH ;
HVELPLUND, P ;
KNUDSEN, H ;
MOLLER, SP ;
SORENSEN, AH ;
ELSENER, K ;
RENSFELT, KG ;
UGGERHOJ, E .
PHYSICAL REVIEW A, 1987, 36 (08) :3612-3629
[2]  
BAYLEY M, 1995, J PHYS B ATOM MOL PH, V28, P2655
[3]   Calculated cross sections for the double excitation of helium by charged particle impact [J].
Bodea, D ;
Orban, A ;
Ristoiu, D ;
Nagy, L .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1998, 31 (18) :L745-L755
[4]   Intermediate-state dynamic correlation in the ionization of helium [J].
Bronk, T ;
Reading, JF ;
Ford, AL .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1998, 31 (11) :2477-2488
[5]   COLLISIONAL IONIZATION AND EXCITATION OF H-2 - DEPENDENCE ON THE ORIENTATION OF THE INTERNUCLEAR AXIS [J].
EDWARDS, AK ;
WOOD, RM ;
MANGAN, MA ;
EZELL, RL .
PHYSICAL REVIEW A, 1992, 46 (11) :6970-6976
[6]   COLLISIONAL IONIZATION AND EXCITATION OF H-2 - 2-ELECTRON PROCESSES [J].
EDWARDS, AK ;
WOOD, RM ;
DAVIS, JL ;
EZELL, RL .
PHYSICAL REVIEW A, 1990, 42 (03) :1367-1375
[7]   IMPROVED FORCED IMPULSE METHOD CALCULATIONS OF SINGLE AND DOUBLE-IONIZATION OF HELIUM BY COLLISION WITH HIGH-ENERGY PROTONS AND ANTIPROTONS [J].
FORD, AL ;
READING, JF .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1994, 27 (18) :4215-4227
[8]   Excitation of the 2pσu state of H2+ as a function of the internuclear axis alignment [J].
Mangan, MA ;
Wood, RM ;
Edwards, AK ;
Zheng, Q .
PHYSICAL REVIEW A, 1999, 59 (01) :358-362
[9]   Electron correlation in multiple excitation of atoms by high-energy ions [J].
Martin, F ;
Salin, A .
PHYSICAL REVIEW LETTERS, 1996, 76 (09) :1437-1440
[10]   IONIZATION OF MOLECULAR-HYDROGEN BY PROTON IMPACT .2. 2-ELECTRON PROCESSES [J].
NAGY, L ;
VEGH, L .
PHYSICAL REVIEW A, 1992, 46 (01) :290-295