Study of Higgs Boson production at high transverse momentum in the b-quark pair decay mode
This document presents constraints on Higgs boson production at high transverse momentum using the $b\bar{b}$ channel. The study is based on data collected at $\sqrt{s}=13$ TeV with the ATLAS detector, corresponding to an integrated luminosity of $136$ fb$^{-1}$. The events of interest consist of two large radius jets recoilling against each other. The Higgs boson decaying to b-quarks is identified using b-tagging techniques, exploiting the experimental signature of b-hadron decays while the other jet is a fully hadronic system. $Z\rightarrow b\bar{b}$ events are used to validate experimental techniques. Upper limits at the $95\%$ confidence level on the Higgs boson production cross section are established for transverse momenta above $450$ GeV and above $1$ TeV. Studies related to possible improvements of these results, by reducing the uncertainties are also discussed, such as the use of modern jet definitions like UFO jets and the development of jet substructure taggers using machine learning techniques.
Read
- In Collections
-
Electronic Theses & Dissertations
- Copyright Status
- In Copyright
- Material Type
-
Theses
- Authors
-
Reyes Rivera, José Gabriel
- Thesis Advisors
-
Huston, Joey
- Committee Members
-
Hayden, Daniel
Donahue, Megan
von Manteuffel, Andreas
Cocker, Tyler
- Date Published
-
2023
- Subjects
-
Particles (Nuclear physics)
- Program of Study
-
Physics - Doctor of Philosophy
- Degree Level
-
Doctoral
- Language
-
English
- Pages
- 255 pages
- Permalink
- https://doi.org/doi:10.25335/gfzc-m450