Jet Vetoes interfering with H → WW
Name
Moult-2014-Jet Vetoes interferi.pdf
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1.03 MB
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Adobe PDF
Checksum (MD5)
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Author(s)
Moult, Ian James
Stewart, Iain
Date Issued
September 2014
Journal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Moult, Ian, and Iain W. Stewart. “Jet Vetoes Interfering with H → WW.” J. High Energ. Phys. 2014, no. 9 (September 2014).
Version
Final published version
Abstract
Far off-shell Higgs production in H → WW, ZZ, is a particularly powerful probe of Higgs properties, allowing one to disentangle Higgs width and coupling information unavailable in on-shell rate measurements. These measurements require an understanding of the cross section in the far off-shell region in the presence of realistic experimental cuts. We analytically study the effect of a p [subscript T] jet veto on far off-shell cross sections, including signal-background interference, by utilizing hard functions in the soft collinear effective theory that are differential in the decay products of the W/Z. Summing large logarithms of M[subscript WW] [over p superscript Teto subscript T] , we find that the jet veto induces a strong dependence on M [subscript WW], modifying distributions in M [subscript WW] and M [subscript T]. The example of gg → H → WW is used to demonstrate these effects at next to leading log order. We also discuss the importance of jet vetoes and jet binning for the recent program to extract Higgs couplings and widths from far off-shell cross sections.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/JHEP09(2014)129
