Observation and examination of a Higgs boson in the ZZ to four lepton channel
Name
893432656-MIT.pdf
Description
Full printable version
Size
14.55 MB
Format
Adobe PDF
Checksum (MD5)
0c9a10019cfae25bd7ffc0ca83191a34
Author(s)
Ralph, Duncan (Duncan Kelley)
Advisor(s)
Markus Klute.
Date Issued
2014
Publisher
Massachusetts Institute of Technology
Abstract
Results are presented on 5.1 fb- 1 of proton-proton collisions at a center of mass energy of 7 TeV and 19.7 fb- 1 at 8 TeV in a search for decays of the Standard Model (SM) Higgs boson to two Z bosons to four charged leptons. We observe a single excess above background expectation with a significance of 7.4 standard deviations at a mass of 125.6 ±0.4(stat) ±0.2(syst) GeV. This excess has a signal strength parameter ... We examine the transverse momentum spectrum of the new particle and find it to be consistent with the SM expectation, and also determine that the Standard Model JPC = 0++ is favored over the plausible alternative hypotheses.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2014.
71
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 119-123).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.
Persistent DSpace Link
