Upgrading particle identification and searching for leptophobic bosons at GlueX
Author(s)Hardin, John Melvin
Massachusetts Institute of Technology. Department of Physics.
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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.
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2018.Cataloged from PDF version of thesis.Includes bibliographical references (pages 137-140).
DepartmentMassachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology