Next-to-Next-to-Leading Electroweak Logarithms for W-Pair Production at LHC
نویسنده
چکیده
We derive the high energy asymptotic of oneand two-loop corrections in the nextto-next-to-leading logarithmic approximation to the differential cross section of W -pair production at the LHC. For large invariant mass of the W-pair the (negative) one-loop terms can reach more than 40%, which are partially compensated by the (positive) two-loop terms of up to 10%.
منابع مشابه
Next-to-Next-to-Leading Electroweak Logarithms in W -pair Production at ILC
We derive the high energy asymptotic behavior of gauge boson production cross section in a spontaneously broken SU(2) gauge theory in the next-to-next-to-leading logarithmic approximation. On the basis of this result we obtain the logarithmically enhanced two-loop electroweak corrections to the differential cross section of W -pair production at ILC/CLIC up to the second power of the large loga...
متن کاملAutomated NNLL \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$+$$\end{document}+ NLO resummation for jet-veto cross sections
In electroweak-boson production processes with a jet veto, higher-order corrections are enhanced by logarithms of the veto scale over the invariant mass of the boson system. In this paper, we resum these Sudakov logarithms at next-to-next-to-leading logarithmic accuracy and match our predictions to next-to-leading-order (NLO) fixed-order results. We perform the calculation in an automated way, ...
متن کاملThreshold resummed and approximate next-to-next-to-leading order results forWþW pair production at the LHC
The next-to-leading order (NLO) QCD radiative corrections to WþW production at hadron colliders are well understood. We combine NLO perturbative QCD calculations with soft-gluon resummation of threshold logarithms to find a next-to-next-to-leading logarithmic (NNLL) prediction for the total cross section and the invariant mass distribution at the LHC. We also obtain approximate next-to-next-tol...
متن کاملSubleading Sudakov Logarithms in Electroweak Processes *
Recent results for the asymptotic behavior of fermion scattering amplitudes in the Sudakov limit are presented including next-to-leading logarithmic corrections. These are used for the analysis of the dominant electroweak corrections to the fermion-antifermion pair production in e + e − annihilation at high energy.
متن کاملLogarithmic electroweak corrections to hadronic Z + 1 jet production at large transverse momentum
We consider hadronic production of a Z boson in association with a jet and study oneand two-loop electroweak logarithmic corrections in the region of high Z-boson transverse momentum, pT ≫ MZ , including leading and next-to-leading logarithms. Numerical results for the LHC and Tevatron colliders are presented. At the LHC these corrections amount to tens of per cent and will be important for int...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2011