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preprints:2008:ttp08-43 [2016/03/17 11:03] (current)
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 +====== TTP08-43 ${\cal O}(\alpha\alpha_s)$ corrections to the $\gamma t\bar{t}$ vertex at the top quark threshold ====== 
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 +      <hidden TTP08-43 ​ ${\cal O}(\alpha\alpha_s)$ corrections to the $\gamma t\bar{t}$ vertex at the top quark threshold > We compute the last missing piece of the  
 + ​two-loop ${\cal O}(\alpha \alpha_s)$ corrections 
 + to $\gamma t \bar{t}$ vertex at the $t \bar{t}$ threshold  
 + due to the exchange of a $W$ boson and a gluon. This contribution 
 + ​constitutes a building  
 + block of the top quark threshold production cross section at electron  
 + ​positron colliders. 
 + </​hidden>​ 
 +|**Yuichiro Kiyo, Dirk Seidel, Matthias Steinhauser** ​ |  
 +|**  JHEP  0901 038 2009  **  | 
 +| {{preprints:​2008:​ttp08-43.pdf|PDF}} {{preprints:​2008:​ttp08-43.ps|PostScript}} [[http://​arxiv.org/​abs/​0810.1597|arXiv]] [[http://​ttp.kit.edu/​Progdata/​ttp08/​ttp08-43|Programs and Data]] ​  | 
 +| |