Photon-tagged jet measurements in Pb+Pb collisions with the CMS detector
C Loizides (MIT) (for the CMS Collaboration)
TL;DR
This paper presents a detailed simulation study of photon-tagged jet measurements in Pb+Pb collisions at the LHC, focusing on how jet fragmentation functions are modified in the quark-gluon plasma compared to proton-proton collisions.
Contribution
It provides a comprehensive simulation framework for photon-jet events in heavy-ion collisions using CMS detector data, highlighting potential modifications in jet fragmentation functions.
Findings
Simulation indicates significant jet modification in Pb+Pb collisions.
Photon-jet correlations can effectively probe the quark-gluon plasma.
Results support the feasibility of measuring jet quenching effects with CMS.
Abstract
Presented are the results of a detailed study for a complete simulation of the CMS detectors at the LHC in view of the expected modification of jet fragmentation functions in central Pb+Pb collisions at (s_NN)**0.5=5.5 TeV compared to the vacuum (p+p) case. The study is based on photon-jet events, using the correlation between isolated high-transverse energy (E_T>70 GeV) photons and fully reconstructed jets, based on the information provided by the CMS calorimeters and silicon tracker.
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