Studies of two particle correlation functions and photon-tagged jet fragmentation in PbPb and pp Collisions with CMS at the LHC
Name
1200201454-MIT.pdf
Size
14.83 MB
Format
Adobe PDF
Checksum (MD5)
9486402a9f054f8a47356c1cd339ad70
Author(s)
Velicanu, Dragos(Dragos Alexandru)
Advisor(s)
Gunther Roland.
Date Issued
2019
Publisher
Massachusetts Institute of Technology
Abstract
This thesis studies of two particle correlations in proton-proton (pp), proton-lead (pPb), and lead-lead (PbPb) collisions, as well as jet fragmentation functions for jets paired with an isolated prompt photon in pp and PbPb collisions to better understand matter in a Quark Gluon Plasma (QGP) state. The correlation studies measure the precise hydrodynamic behavior of PbPb collisions through a Fourier analysis of charged particles emitted from the QGP and show unexpectedly strong collective behavior in high multiplicity pp and pPb collisions. The photon-tagged jet studies provide tight constraints for understanding the interactions between the jet and the Quark Gluon Plasma it traverses by both measuring the jet substructure properties via the fragmentation function, and having a sample of jets unbiased by the interactions we are trying to probe by selecting high energy photon events. These analyses are performed using data recorded by the CMS experiment at the LHC from PbPb, pPb, and pp collisions at a center of mass energy of 5.02 TeV per nucleon-nucleon pair, as well as 2.76 TeV PbPb collisions and 7 TeV pp collisions in the correlation analyses.
Description
Thesis: Ph. D., Massachusetts Institute of Technology, Department of Physics, 2019
Cataloged from PDF of thesis.
Includes bibliographical references (pages 107-113).
Subjects
Physics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
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