The Higgs transverse momentum spectrum with finite quark masses beyond leading order
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13130_2016_Article_4561.pdf
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Author(s)
Caola, Fabrizio
Forte, Stefano
Marzani, Simone
Muselli, Claudio
Vita, Gherardo
Date Issued
August 2016
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Caola, Fabrizio et al. “The Higgs Transverse Momentum Spectrum with Finite Quark Masses beyond Leading Order.” Journal of High Energy Physics 2016.8 (2016): n. pag.
Version
Final published version
Abstract
We apply the leading-log high-energy resummation technique recently derived by some of us to the transverse momentum distribution for production of a Higgs boson in gluon fusion. We use our results to obtain information on mass-dependent corrections to this observable, which is only known at leading order when exact mass dependence is included. In the low p[subscript T] region we discuss the all-order exponentiation of collinear bottom mass logarithms. In the high p[subscript T] region we show that the infinite top mass approximation loses accuracy as a power of p[subscript T], while the accuracy of the high-energy approximation is approximately constant as p[subscript T] grows. We argue that a good approximation to the NLO result for p[subscript T] ≳ 200 GeV can be obtained by combining the full LO result with a K-factor computed using the high-energy approximation.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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Creative Commons Attribution
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DOI of Published Version
http://dx.doi.org/10.1007/JHEP08(2016)150
