Speaker
Vaibhav Pandey
(Indian Institute of Technology Guwahati)
Description
We perform the threshold resummation for massive vector boson pair production processes ($ZZ$ and $W^{+}W^{-}$) at the Next to Next to Leading Log accuracy matched with Next to Next to Leading Order fixed order results. We perform the Resummation in the Mellin space, and present our results for the invariant mass distribution to NNLO+NNLL accuracy in QCD for the current LHC energies. We find that in the high invariant mass region, the NNLL contribution enhances the cross
section by an additional few percent.
We find that in the high invariant mass region ($Q=1 TeV$), the conventional scale uncertainties in the fixed-order results get reduced substantially after including the resummation contributions.
| Field of contribution | Phenomenology |
|---|
Authors
Mr
Chinmoy Dey
(Indian Institute of Technology Guwahati)
Dr
M.C. Kumar
(Indian Institute of Technology Guwahati)
Dr
Pulak Banerjee
(Indian Institute of Technology Guwahati, INFN Cosenza)
Vaibhav Pandey
(Indian Institute of Technology Guwahati)
