Search for Higgs Boson Pair Production in the bbWW* Channel in SQRT(S) = 13 TeV Proton-Proton Collisions at the Large Hadron Collider Using the Atlas Detector
Loading...
Date
2019-09-18
Authors
Myers, John
Journal Title
Journal ISSN
Volume Title
Publisher
University of Oregon
Abstract
This dissertation presents a search for double Higgs production in the bbWW
final state in proton-proton collisions at the ATLAS detector at the Large Hadron
Collider. Double Higgs production is predicted in the Standard Model with a cross
section of \sigma HH = 33:53fb +4:3%
+/-6:0% +/- 5:9%. Many Beyond the Standard Model theories
predict enhancements to the production cross section through resonant production.
The 2015-2016 ATLAS dataset has an integrated luminosity of 36.1 fb-1 with
a center of mass energy of sqrt(s) = 13 TeV. Candidate events are broken into two
kinematic regions: a resolved selection containing one lepton (either an electron or
muon), 2 b-tagged calorimeter jets, 2 light-
avor jets, and missing transverse energy;
and a boosted analysis containing one lepton (electron or muon), two large radius jets,
one with two ghost associated, b-tagged track-jets and missing transverse energy. No
signicant deviation from background was observed a cross section upper limit was
set for the SM double Higgs production of 10 pb and for resonant production as a
function of HH invariant mass from 500 GeV to 3000 GeV.
This dissertation includes previously published coauthored material.
Description
Keywords
bbWW, Di-Higgs, Higgs