激光辅助的电子偶素对反质子的反氢生成反应

Laser-assisted Antihydrogen Formation between a Positronium and an Ant iproton

摘要: 在一级玻恩近似下 ,研究了在激光辅助的电子偶素反质子碰撞中的反氢合成 .发现在小角范围内 ,平行于电子偶素入射方向极化的激光使反氢生成截面变小 .在中等角度范围 ,截面有一定的增加 ,特别当偏振方向垂直于入射方向时 ,截面增加比较明显. Antihydrogen formation in the laser-assisted positronium- an tiproton collision is investigated in the first Born approximation. It is found that the differential cross section for a geometry of laser polarization paralle l to the incident direction of positronium is lowered in small angular range, bu t enhanced in medium angular range. When the laser polarization direction is per pendicular to the incident direction, the cross section enhancement obviously at medium angles is notable.

Abstract: Antihydrogen formation in the laser-assisted positronium- an tiproton collision is investigated in the first Born approximation. It is found that the differential cross section for a geometry of laser polarization paralle l to the incident direction of positronium is lowered in small angular range, bu t enhanced in medium angular range. When the laser polarization direction is per pendicular to the incident direction, the cross section enhancement obviously at medium angles is notable.