Vector boson fusion versus gluon fusion

Chen-Hsun Chan, Kingman Cheung, Yi-Lun Chung, and Pai-Hsien Hsu
Phys. Rev. D 96, 096009 – Published 14 November 2017

Abstract

Vector-boson fusion (VBF) is a clean probe of the electroweak-symmetry breaking (EWSB), which inevitably suffers from some level of contamination due to the gluon fusion (ggF). In addition to the jet variables used in the current experimental analysis, we analyze a few more jet-shape variables defined by the girth and integrated jet shape. Taking HWW*eνμν and Hγγ as examples, we perform the analysis with a new technique of the two-step boosted-decision-tree method, which significantly reduces the contamination of the ggF in the VBF sample, thus, providing a clean environment in probing the EWSB sector.

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  • Received 20 June 2017

DOI:https://doi.org/10.1103/PhysRevD.96.096009

© 2017 American Physical Society

Physics Subject Headings (PhySH)

  1. Physical Systems
Particles & Fields

Authors & Affiliations

Chen-Hsun Chan1, Kingman Cheung1,2,3, Yi-Lun Chung1, and Pai-Hsien Hsu1

  • 1Department of Physics, National Tsing Hua University, Hsinchu 300, Taiwan
  • 2Physics Division, National Center for Theoretical Sciences, Hsinchu 300, Taiwan
  • 3Division of Quantum Phases and Devices, School of Physics, Konkuk University, Seoul 143-701, Republic of Korea

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Vol. 96, Iss. 9 — 1 November 2017

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