Probing quark-gluon plasma with beauty quarks
Name
1133589118-MIT.pdf
Size
25.6 MB
Format
Adobe PDF
Checksum (MD5)
90db74716677a0693ff4a62dc4012825
Author(s)
Wang, Ta-Wei,Ph. D.Massachusetts Institute of Technology.
Advisor(s)
Yen-Jie Lee.
Date Issued
2019
Publisher
Massachusetts Institute of Technology
Abstract
This thesis presents the first ever attempts of direct measurements of B mesons in heavy ion collisions with the CMS experiment. The full decay chains of B mesons were reconstructed by identifying the corresponding decay vertices. Machine learning classification models were used extensively and an unprecedented signal to background ratio was reached. Both cross sections and nuclear modification factors which quantify the medium effect of the quark-gluon plasma were measured. This thesis will introduce the techniques that enabled these novel analyses and discuss the implications of the results.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2019
Cataloged from PDF version of thesis.
Includes bibliographical references (pages 203-222).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
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