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  4. DIFFERENTIAL CROSS-SECTION MEASUREMENT STRATEGY FOR THE TTH PROCESS IN THE MULTILEPTON FINAL STATE AT CMS USING RUN II DATASET

DIFFERENTIAL CROSS-SECTION MEASUREMENT STRATEGY FOR THE TTH PROCESS IN THE MULTILEPTON FINAL STATE AT CMS USING RUN II DATASET

File(s)
Cranshaw_cornellgrad_0058_13455.pdf (17.82 MB)
Permanent Link(s)
https://doi.org/10.7298/ygym-cy38
https://hdl.handle.net/1813/114011
Collections
Cornell Theses and Dissertations
Author
Cranshaw, Derek
Abstract

The production of a top quark-antiquark pair in association with the recentlydiscovered Standard Model Higgs boson (t¯tH) provides a promising avenue to search for new physics, due to the large mass of the top quark and its consequent strong coupling to the Higgs boson. This dissertation details a strategy for measuring the t¯tH production cross-section as a function of the Higgs pT, in final states containing electrons, muons, and hadronically decaying taus. The measurement will be performed with the full Run II dataset, corresponding to an integrated luminosity of 137.0 fb−1 , collected by the Compact Muon Solenoid detector from proton-proton collisions at the Large Hadron Collider with a center-of-mass energy of 13 TeV. In addition, the CMS detector is planning a series of upgrades to its subcomponents in anticipation of the High-Luminosity LHC era. One such upgrade is to the CMS tracker, which will allow the reconstruction of particle tracks in under 4 µs, in time for inclusion into the Level-1 trigger decision. An algorithm for such rapid track reconstruction, as well as a description of the FPGA-based platform on which it will run, is presented in this thesis.

Date Issued
2023-05
Keywords
Compact Muon Solenoid
•
Higgs boson
•
Large Hadron Collider
•
Top quark
•
Track-Trigger
Committee Chair
Ryd, Anders
Committee Member
Grossman, Yuval
Wittich, Peter
Degree Discipline
Physics
Degree Name
Ph. D., Physics
Degree Level
Doctor of Philosophy
Type
dissertation or thesis
Link(s) to Catalog Record
https://newcatalog.library.cornell.edu/catalog/16176632

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