2012/05/31 by Thomas Becher, Matthias Neubert · 2 citations
Physics and Astronomy · #hep-ph
paper · pdf · doi:10.1007/jhep07(2012)108
28 pages, 5 figures; v2: published version; note added in proof
arxiv created 2012/07/17 · arxiv updated 2015/06/05
Using methods of effective field theory, we derive the first all-order factorization theorem for the Higgs-boson production cross section with a jet veto, imposed by means of a standard sequential recombination jet algorithm. Like in the case of small-qT resummation in Drell-Yan and Higgs production, the factorization is affected by a collinear anomaly. Our analysis provides the basis for a systematic resummation of large logarithms log(mH/pTveto) beyond leading-logarithmic order. Specifically, we present predictions for the resummed jet-veto cross section and efficiency at next-to-next-to-leading logarithmic order. Our results have important implications for Higgs-boson searches at the LHC, where a jet veto is required to suppress background events.