Combining resummed Higgs predictions across jet bins

Radja Boughezal*, Xiaohui Liu, Francis John Petriello, Frank J. Tackmann, Jonathan R. Walsh

*Corresponding author for this work

Research output: Contribution to journalArticle

36 Scopus citations

Abstract

Experimental analyses often use jet binning to distinguish between different kinematic regimes and separate contributions from background processes. To accurately model theoretical uncertainties in these measurements, a consistent description of the jet bins is required. We present a complete framework for the combination of resummed results for production processes in different exclusive jet bins, focusing on Higgs production in gluon fusion as an example. We extend the resummation of the H+1-jet cross section into the challenging low transverse momentum region, lowering the uncertainties considerably. We provide combined predictions with resummation for cross sections in the H+0-jet and H+1-jet bins, and give an improved theory covariance matrix for use in experimental studies. We estimate that the relevant theoretical uncertainties on the signal strength in the H→WW* analysis are reduced by nearly a factor of 2 compared to the current value.

Original languageEnglish (US)
Article number074044
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume89
Issue number7
DOIs
StatePublished - Apr 22 2014

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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