Top Quark Threshold Production at a gamma-gamma Collider at Next-to-Next-to-Leading Order.

Melnikov, K.

Technical Information Center Oak Ridge Tennessee

关键词: Electron-position interactions;    Top particles;    Quark production;    High energy physics;    Particle interactions;   

RP-ID  :  DE2001787232

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The next-to-next-to leading order (NNLO) QCD corrections to top quark threshold pair production in gamma collisions are computed. The NNLO effects turn out to be significant. Threshold cross sections in gamma and e+e- collisions are compared.