Automated NLO QCD Corrections with WHIZARD
نویسندگان
چکیده
We briefly discuss the current status of NLO QCD automation in the Monte Carlo event generator WHIZARD. The functionality is presented for the explicit study of off-shell top quark production with associated backgrounds at a lepton collider.
منابع مشابه
Matching NLO QCD Corrections in WHIZARD with the POWHEG scheme
Building on the new automatic subtraction of NLO amplitudes in WHIZARD, we present our implementation of the POWHEG scheme to match radiative corrections consistently with the par-ton shower. We apply this general framework to two linear collider processes, e + e − → t ¯ t and e + e − → t ¯ tH.
متن کاملMonte Carlo Simulations for NLO Chargino Production at the ILC
We present an extension of the Monte Carlo Event Generator WHIZARD which includes chargino production at the ILC at NLO. We include photons using both a fixed order and a resummation approach. In the latter, leading higher order corrections are automatically included. We present results for cross sections and event generation for both methods [1].This is an updated version of the results presen...
متن کاملNLO QCD corrections to dijet production via quark contact interactions
Abstract: We present the exact next-to-leading order (NLO) QCD corrections to dijet production at the LHC via quark contact interactions, with different color and chiral structures induced from new physics. Following the recent analysis of quark compositeness search at the LHC, we find that the NLO QCD corrections can lower the dijet cross sections by several tens percent, depending on the theo...
متن کاملIntegrated dipoles with MadDipole in the MadGraph framework
Heading towards a full automation of next-to-leading order (NLO) QCD corrections, one important ingredient is the analytical integration over the one-particle phase space of the unresolved particle that is necessary when adding the subtraction terms to the virtual corrections. We present the implementation of these integrated dipoles in the MadGraph framework. The result is a package that allow...
متن کاملNLO QCD corrections to Wbb̄ and Zbb̄ production
We present NLO QCD results for Wbb̄ and Zbb̄ production at the Tevatron including full bottomquark mass effects. We study the impact of QCD corrections on both total cross-section and invariant mass distribution of the bottom-quark pair. Including NLO QCD corrections greatly reduces the dependence of the tree-level cross-section on the renormalization and factorization scales. We also compare our...
متن کامل