• DOI:10.1007/JHEP12(2014)092
• Corpus ID: 52993598

NLO+NLL limits on W′ and Z′ gauge boson masses in general extensions of the Standard Model

@article{Jeo2014NLONLLLO,
  title={NLO+NLL limits on W′ and Z′ gauge boson masses in general extensions of the Standard Model},
  author={Tom{\'a}{\vs} Je{\vz}o and Michael Klasen and David R. Lamprea and F. Lyonnet and I. Schienbein},
  journal={Journal of High Energy Physics},
  year={2014},
  volume={2014},
  pages={1-28}
}

• T. Ježo, M. Klasen, +2 authors I. Schienbein
• Published 17 October 2014
• Physics
• Journal of High Energy Physics

A bstractQCD resummation predictions for the production of charged (W′) and neutral (Z′) heavy gauge bosons decaying leptonically are presented. The results of our resummation code at next-to-leading order and next-to-leading logarithmic (NLO+NLL) accuracy are compared to Monte Carlo predictions obtained with PYTHIA at leading order (LO) supplemented with parton showers (PS) and FEWZ at NLO and next-to-next-to-leading order (NNLO) for the pT-differential and total cross sections in the Sequential Standard Model (SSM) and general SU(2)×SU(2)×U(1) models. The LO+PS Monte Carlo and NNLO fixed-order predictions are shown to agree approximately with those at NLO+NLL at small and intermediate pT, respectively, and the importance of resummation for total cross sections is shown to increase with the gauge boson mass. The theoretical uncertainties are estimated by variations of the renormalisation/factorisation scales and of the parton densities, the former being significantly reduced by the resummation procedure. New limits at NLO+NLL on W′ and Z′ boson masses are obtained by reinterpreting the latest ATLAS and CMS results in general extensions of the Standard Model.