The Higgs transverse momentum spectrum with finite quark masses beyond leading order
Author(s)Caola, Fabrizio; Forte, Stefano; Marzani, Simone; Muselli, Claudio; Vita, Gherardo
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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.
DepartmentMassachusetts Institute of Technology. Center for Theoretical Physics; Massachusetts Institute of Technology. Department of Physics
Journal of High Energy Physics
Springer Berlin Heidelberg
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.
Final published version