Using soft-collinear effective theory, the leading-log radiative electroweak corrections are written in a closed and analytical form for the hadronic cross-section of Higgs production through vector boson fusion, qq → qqH, one of the most promising channels for studying the Higgs boson at Large Hadron Collider (LHC). The simple leading-log resummation is compared with a full next-to-leading-log calculation, and its accuracy is found to be of order 1% up to 10 TeV, i.e. better than the accuracy of parton distribution functions. Corrections are found to be larger than predicted by one-loop fixed-order approximations at LHC energies. The method provides a simple way of incorporating the electroweak corrections in software packages, improving the accuracy of simulations.
COMPARISON OF LEADING AND NEXT-TO-LEADING LOGARITHMIC ELECTROWEAK CORRECTIONS TO HIGGS PRODUCTION
SIRINGO, Fabio
2013-01-01
Abstract
Using soft-collinear effective theory, the leading-log radiative electroweak corrections are written in a closed and analytical form for the hadronic cross-section of Higgs production through vector boson fusion, qq → qqH, one of the most promising channels for studying the Higgs boson at Large Hadron Collider (LHC). The simple leading-log resummation is compared with a full next-to-leading-log calculation, and its accuracy is found to be of order 1% up to 10 TeV, i.e. better than the accuracy of parton distribution functions. Corrections are found to be larger than predicted by one-loop fixed-order approximations at LHC energies. The method provides a simple way of incorporating the electroweak corrections in software packages, improving the accuracy of simulations.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
