2026-09-19T22:38:28Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/1191042026-06-16T18:53:52Zcom_1721.1_7582com_1721.1_7581col_1721.1_131022
Michael WIlliams.
Hardin, John Melvin
Massachusetts Institute of Technology. Department of Physics.
Massachusetts Institute of Technology. Department of Physics
2018-11-15T16:36:43Z
2018-11-15T16:36:43Z
2018
2018
http://hdl.handle.net/1721.1/119104
1059519943
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2018.
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 137-140).
MIT's contribution to the GLUEX project was the design and implementation of upgraded particle identification (PID) for the GLUEX strangeness program. The development of a Cherenkov detector known as a DIRC (Detection of Internally Reflected Cherenkov light) is presented. The design begins with a DIRC configuration implemented as a prototype for the SuperB experiment, and modifications to this design are made based on simulations and tests of components. A novel method of reconstructing DIRC patterns is presented. In addition to detector design, a search for a leptophobic boson using GLUEX data is also presented. The process of preparing for a general 3[pi] and [pi]⁰[gamma] bump hunt is discussed along with the expected sensitivity of this search to the specific model of a B boson, which is a proposed particle generated by a U(1) gauge symmetry associated with baryon number. This preparation includes the data-driven determination of GLUEX properties such as reconstruction efficiencies and invariant mass resolution. A paper containing these results is expected to go into GLUEX review this summer.
by John Melvin Hardin.
Ph.D.
140 pages
eng
Massachusetts Institute of Technology
MIT theses are protected by copyright. They may be viewed, downloaded, or printed from this source but further reproduction or distribution in any format is prohibited without written permission.
http://dspace.mit.edu/handle/1721.1/7582
Physics.
Upgrading particle identification and searching for leptophobic bosons at GlueX
Thesis
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