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Search for Lepton Flavor Violating Decays of the Higgs Boson to a Muon and a Tau Lepton or to an Electron and a Tau Lepton

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posted on 2021-03-18, 00:00 authored by Prasanna Siddireddy

This dissertation presents searches for lepton flavor violating decay of the standard model Higgs boson into a muon and a tau lepton or to an electron and a tau lepton. Data collected by the CMS detector in 2016-2018, in proton-proton collisions at the LHC, at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 137 fb^-1 was used to perform the search. The observed (expected) upper limits on the branching fraction of Higgs boson decaying into a muon and a tau lepton were set at 0.15 (0.15)% at 95% CL and the branching fraction of Higgs boson decaying into an electron and a tau lepton were set at 0.22 (0.16)% at 95% CL. These are the most stringent limits set on these processes to date.

History

Date Modified

2021-03-26

Defense Date

2021-01-27

CIP Code

  • 40.0801

Research Director(s)

Colin P. Jessop

Committee Members

Umesh Garg Adam Martin Michael Hildreth

Degree

  • Doctor of Philosophy

Degree Level

  • Doctoral Dissertation

Language

  • English

Alternate Identifier

1243278588

Library Record

5996042

OCLC Number

1243278588

Program Name

  • Physics

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