Document Type

Dissertation

Date of Degree

Fall 2012

Degree Name

PhD (Doctor of Philosophy)

Degree In

Physics

First Advisor

Yasar Onel

Abstract

This paper consists of two studies: the results of a search for heavy Majorana neutrinos (N) using an event signature dened by two like-sign charged muons and two jets, and the results from studies of a prototype quartz plate calorimeter. The data in the Majorana search correspond to an integrated luminosity of 5.0 inverse fb of pp collisions at a centre-of-mass energy of 7 TeV collected with the CMS detector at the Large Hadron Collider. No excess of events are observed beyond the expected standard model background and therefore upper limits are set on the square of the mixing element, |VμN|^2 as a function of Majorana neutrino mass. These are the first direct upper limits on the heavy Majorana-neutrino mixing for mN 90GeV. The second part of this thesis is the results of performance tests of a 20-layer quartz plate calorimeter prototype. The calorimeter prototype was tested at the CERN H2 area in hadronic and electromagnetic congurations, at various energies of pion and electron beams. The beam test and simulation results of this prototype are reported.

Pages

xi, 83 pages

Bibliography

Includes bibliographical references (pages 77-83).

Copyright

Copyright 2012 Warren Clarida

Included in

Physics Commons

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