Photoelectron Angular Distributions of Positronium in Intense Laser Field
WANG Yi1,2, ZHANG Jing-Tao1, REN Xiang-He1, XU Zhi-Zhan1, GUO Dong-Sheng3
1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002Graduate School of Chinese Academy of Sciences, Beijing 1000493Department of Physics, Southern University A & M College, Baton Rouge, Louisiana 70813 USA
Photoelectron Angular Distributions of Positronium in Intense Laser Field
WANG Yi1,2, ZHANG Jing-Tao1, REN Xiang-He1, XU Zhi-Zhan1, GUO Dong-Sheng3
1State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 2018002Graduate School of Chinese Academy of Sciences, Beijing 1000493Department of Physics, Southern University A & M College, Baton Rouge, Louisiana 70813 USA
摘要When positronium is generated in super intense laser fields irradiated by an intense laser field, it breaks up into an electron and a positron. The momentum of the electron as well as that of the positron depends on the relative direction with respect to the laser propagation. Thus, the photoelectron angular distributions show inversion asymmetry. The inversion asymmetry becomes notable for higher kinetic energy of electrons.
Abstract：When positronium is generated in super intense laser fields irradiated by an intense laser field, it breaks up into an electron and a positron. The momentum of the electron as well as that of the positron depends on the relative direction with respect to the laser propagation. Thus, the photoelectron angular distributions show inversion asymmetry. The inversion asymmetry becomes notable for higher kinetic energy of electrons.
[1] Dirac P A M 1930 Proc. Camb. Phil. Soc. 26 361 [2] Anderson C D 1933 Phys. Rev. 43 491 [3] Deutsch M 1951 Phys. Rev. 82 455 [4] Burke D L 1997 Phys. Rev. Lett. 79 1626 [5] Schwinger J 1951 Phys. Rev. 82 664 [6] Tajima T and Mourou G 2002 Phys. Rev. ST. Accel.Beams 5 031301 [physics/0111091] [7] Freeman R R, Mcllrash T J, Bucksbaum P H and Bashkansky M1986 Phys. Rev. Lett. 57 3156 [8] Mcllrash T J, Bucksbaum P H, Freeman R R and Bashkansky M1987 Phys. Rev. A 35 4611 [9] Yang B, Schafer K J, Walker B, Kulander K C, Agostini Pand Dimauro L F 1993 Phys. Rev. Lett. 71 3770 [10] Nandor M J, Walker M A and Van Woerkom L D 1998 J.Phys. B At. Mol. Opt. Phys. 31 4617 [11] Schyja V, Lang T and Helm H 1998 Phys. Rev. A 57 3692 [12] Keldysh L V 1964 Zh. Eksp. Teor. Fiz. 47 1945 [13] Faisal F H M 1973 J. Phys. B 6 L89 [14] Reiss H R 1980 Phys. Rev. A 22 1786 [15] Chen B Z 1990 Chin. Phys. Lett. 7 219 [16] Ao S Y, Cheng T W, Li X F, Wu L A and Fu P M 2003 Chin. Phys. Lett. 20 1482 [17] Guo Y C, Fu P M and Wang B B 2009 Chin. Phys. Lett. 26 034204 [18] Zhang J T, Zhang W Q, Xu Z Z, Li X F, Fu P M, Guo D S andFreeman R R 2002 J. Phys. B: At. Mol. Opt. Phys. 35 4809 [19] Guo D S, Aberg T and Crasemann B 1989 Phys. Rev. A 40 4997 [20] Gao J, Guo D S and Wu Y S 2000 Phys. Rev. A 61 043406 [21] Guo D S and Drake G W F 1992 Phys. Rev. A 456622 [22] Bucksbaum P H, Schumacher D W and Bashkansky M 1988 Phys. Rev. Lett 61 1182 [23] Gao J, Bagayoko D and Guo D S 1998 Can. J. Phys. 76 87 [24] Hu X, Wang H X and Guo D S 2008 Can. J. Phys. 86 863
2009, Vol. 26 
