Search for tt H Production in the H bb Decay Channel
Using Deep Learning Techniques with the CMS Experiment
(Sprache: Englisch)
In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson was discovered in proton-proton collisions recorded by experiments at the...
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In 1964, a mechanism explaining the origin of particle masses was proposed by Robert Brout, François Englert, and Peter W. Higgs. 48 years later, in 2012, the so-called Higgs boson was discovered in proton-proton collisions recorded by experiments at the LHC. Since then, its ability to interact with quarks remained experimentally unconfirmed.This book presents a search for Higgs bosons produced in association with top quarks tt H in data recorded with the CMS detector in 2016. It focuses on Higgs boson decays into bottom quarks H bb and top quark pair decays involving at least one lepton. In this analysis, a multiclass classification approach using deep learning techniques was applied for the first time. In light of the dominant background contribution from tt production, the developed method proved to achieve superior sensitivity with respect to existing techniques. In combination with searches in different decay channels, the presented work contributed to the first observations of tt H production and H bb decays.
Inhaltsverzeichnis zu „Search for tt H Production in the H bb Decay Channel “
Introduction.- The tt H Process in the Standard Model of Particle Physics.- Experimental Setup.- Analysis Strategy.- Analysis Technologies.
Bibliographische Angaben
- Autor: Marcel Rieger
- 2021, 1st ed. 2021, XIII, 217 Seiten, 73 farbige Abbildungen, Masse: 15,5 x 23,5 cm, Gebunden, Englisch
- Verlag: Springer, Berlin
- ISBN-10: 303065379X
- ISBN-13: 9783030653798
Sprache:
Englisch
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