Higher Order QCD Corrections at Hadron Colliders

Colliders such as Tevatron at Fermilab and Large Hadron Collider (LHC) at CERN play important role in high energy physics phenomenology to confirm standard model (SM) and constrain various physics beyond the standard model (BSM) scenarios. Since these are hadron colliders, the underlying hard processes result from strong interaction force which is governed by Quantum Chromodynamics. Since the processes take place at high energies, perturbative approach to understand them has been very successful. In this talk I will discuss some state of art calculations in higher order QCD corrections. I will also discuss some of my works in this direction.