Two loop QCD corrections to Z-> bottom + anti-bottom + gluon amplitude.

Hadron Colliders such as LHC play important role in high energy physics phenomenology to confirm standard model (SM) and constrain various physics beyond standard model (BSM) scenarios. Since the processes at hadron colliders take place at high energies, perturbative approach to understand them has been very successful. The study of jet production in association with a W or Z boson allows for tests of perturbative QCD calculations. On the other hand the productions of vector bosons with jets is an important background in searches for new physics and for studies of the top quark. In this talk, I will discuss about two loop QCD corrections to Z->bottom + anti-bottom + gluon amplitude.