Resummation prediction on gauge boson pair production with a jet veto

We investigate the resummation effects with a jet veto, for WZ and ZZ productions at the LHC in soft-collinear effective theory. We present the invariant mass distributions and the total cross section with different jet veto and jet radius for these process at Next-to-Next-to-Leading-Logarithmic lev...

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Bibliographic Details
Published in:arXiv.org 2015-04
Main Authors: Wang, Yan, Chong Sheng Li, Ze Long Liu
Format: Article
Language:English
Subjects:
Cross-sections
Pair production
Online Access:Get full text
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Summary:We investigate the resummation effects with a jet veto, for WZ and ZZ productions at the LHC in soft-collinear effective theory. We present the invariant mass distributions and the total cross section with different jet veto and jet radius for these process at Next-to-Next-to-Leading-Logarithmic level. Our results show that the jet-veto resummation can increase the jet-veto cross section and decrease the scale uncertainties, especially in the large center-of-mass energy. We find that for pt_veto>30 GeV and R=0.4, the resummation results can increase POWHEG+PYTHIA predictions by about 19% for WZ production and 18% for ZZ production, respectively. Our results agree with the CMS data for WZ productions within 2\(\sigma\) C.L. at 8 TeV, which can explain the 2\(\sigma\) discrepancy between the CMS experimental results and theoretical predictions based on NLO calculation with parton showers.
ISSN:2331-8422
DOI:10.48550/arxiv.1504.00509