Constraining the Higgs boson valence contribution in the proton

Author(s)
Simon Fernbach, Lukas Lechner, Axel Maas, Simon Plätzer, Robert Schöfbeck
Abstract

Nonperturbative gauge invariance under the strong and the weak interactions dictates that the proton contains a nonvanishing valence contribution from the Higgs particle. By introducing an additional parton distribution function (PDF), we investigate the experimental consequences of this prediction. The herwig7 event generator and a parameterized CMS detector simulation are used to obtain predictions for a scenario amounting to the LHC run-II dataset. We use those to assess the impact of the Higgs PDF on the pp→tt process in the single-lepton final state. Comparing to nominal simulation we derive expected limits as a function of the shape of the valence Higgs PDF. We also investigate the process pp→ttZ at the parton level to add further constraints.

Organisation(s)
Research Platform Erwin Schrödinger International Institute for Mathematics and Physics, Particle Physics
External organisation(s)
Karl-Franzens-Universität Graz, Österreichische Akademie der Wissenschaften (ÖAW)
Journal
Physical Review D
Volume
101
No. of pages
11
ISSN
2470-0010
DOI
https://doi.org/10.1103/PhysRevD.101.114018
Publication date
06-2020
Peer reviewed
Yes
Austrian Fields of Science 2012
103012 High energy physics, 103034 Particle physics
ASJC Scopus subject areas
Physics and Astronomy (miscellaneous)
Portal url
https://ucris.univie.ac.at/portal/en/publications/constraining-the-higgs-boson-valence-contribution-in-the-proton(d68a5baf-e9f6-4575-8907-b3b70f72f755).html