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arXiv · 1504.00509

Resummation prediction on gauge boson pair production with a jet veto

Yan Wang·Chong Sheng Li·Ze Long Liu
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Abstract

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.

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Yan Wang, Chong Sheng Li, Ze Long Liu. 2015-04-02. Resummation prediction on gauge boson pair production with a jet veto. https://doi.org/10.1103/physrevd.93.094020

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