The Higgs transverse momentum distribution at NNLL and its theoretical errors
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13130_2015_Article_2728.pdf
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Author(s)
Vaidya, Varun
Rothstein, Ira Z.
Neill, Duff Austin
Date Issued
December 2015
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
Neill, Duff, Ira Z. Rothstein, and Varun Vaidya. “The Higgs Transverse Momentum Distribution at NNLL and Its Theoretical Errors.” Journal of High Energy Physics 2015.12 (2015): n. pag.
Version
Final published version
Abstract
In this letter, we present the NNLL-NNLO transverse momentum Higgs distribution arising from gluon fusion. In the regime p [subscript ⊥] ∼ m [subscript h] we include the resummation of the large logs at next to next-to leading order and then match on to the α [subscript s] [superscript 2] fixed order result near p [subscript ⊥] ∼ m [subscript h]. By utilizing the rapidity renormalization group (RRG) we are able to smoothly match between the resummed, small p [subscript ⊥] regime and the fixed order regime. We give a detailed discussion of the scale dependence of the result including an analysis of the rapidity scale dependence. Our central value differs from previous results, in the transition region as well as the tail, by an amount which is outside the error band. This difference is due to the fact that the RRG profile allows us to smoothly turn off the resummation.
MIT Department
Massachusetts Institute of Technology. Center for Theoretical Physics
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/JHEP12(2015)097
