Abstract
First we present a theoretical framework to compute the fully differential cross sections for the top-quark productions and their subsequent decays at hadron colliders, incorporating the bound-state effects which are important in the tt̄ threshold region. We include the bound-state effects such that the cross sections are correct in the LO approximation both in the threshold and high-energy regions. Then, based on this framework we compute various kinematical distributions of top quarks as well as of their decay products at the LHC, by means of Monte-Carlo event-generation. These are compared with the corresponding predictions based on conventional perturbative QCD. In particular, we find a-characteristic bound-state effect on the (bW+)- (b̄W-) double-invariant-mass distribution, which is deformed to the lower invariant-mass side in a correlated manner.
Original language | English |
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Article number | 34 |
Journal | Journal of High Energy Physics |
Volume | 2010 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2010 |
Externally published | Yes |
Keywords
- Hadronic colliders
- Heavy quark physics
- QCD
ASJC Scopus subject areas
- Nuclear and High Energy Physics