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We perform the threshold resummation for massive vector boson pair production processes (ZZ and \(W^{+}W^{-}\) ) up to the next to next to leading log accuracy matched with next to next to leading order fixed order (FO) 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 percentage. 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.

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Threshold Resummation for the Vector Boson Pair Production to NNLO+NNLL at the LHC

  • 会议论文

  • 发表日期：

    2025年

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  • Pulak Banerjee,
  • Chinmoy Dey,
  • M. C. Kumar,
  • Vaibhav Pandey

摘要

We perform the threshold resummation for massive vector boson pair production processes (ZZ and \(W^{+}W^{-}\) ) up to the next to next to leading log accuracy matched with next to next to leading order fixed order (FO) 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 percentage. 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.