9 papers
Two-loop QCD amplitudes for production at the LHC in the leading-colour approximation
Matteo Becchetti, Dhimiter Canko, Xiang Chen +7
We present a numerical computation of the two-loop QCD scattering amplitudes for the production of a top-antitop quark pair in association with a boson () at the LHC…
NNLO QCD predictions for production at the LHC
Xiang Chen
The production of a top-antitop quark pair in association with a boson () is one of the heaviest signatures currently explored at the Large Hadron Collider (LHC) and…
NNLO QCD predictions for production at hadron colliders
Matteo Becchetti, Dhimiter Canko, Xiang Chen +10
The production of a top-antitop quark pair in association with a boson constitutes one of the heaviest final states currently studied at the Large Hadron Collider (LHC) at CERN…
Heavy-to-light Structure Functions at in QCD
Long Chen, Xiang Chen, Xin Guan +1
We present the first complete and perturbative QCD corrections to all five heavy-to-light structure functions underlying the triple-diff…
Triple Differential Heavy-to-light Semi-leptonic Decays at Next-to-Next-to-Next-to-Leading Order in QCD
Long Chen, Xiang Chen, Xin Guan +1
We report the first complete calculation of the five heavy-to-light hadronic structure functions underlying semi-leptonic heavy-quark decays at next-to-next-to-next-to-leading orde…
Two-loop QCD-corrections to
Xiang Chen, Xin Guan, Chuan-Qi He +1
We present a next-to-next-to-leading-order calculation within the nonrelativistic QCD framework for the process of . We find…