Studies of quark-like and gluon-like contributions to jets using jet charge measurements in pp and PbPb collisions with the CMS experiment
D.A. Hangal* on behalf of the CMS Collaboration
Published on:
September 01, 2021
Abstract
The momentum-weighted sum of the electric charges of particles inside a jet, known as jet charge, is sensitive to the electric charge of the hard-scattered parton initiating the jet. Jet charge distributions are presented for PbPb and pp collisions recorded by the CMS detector at √sNN = 5.02 TeV at the LHC. The measurements are unfolded for detector and background effects, and are presented differentially in pT and additionally as a function of the overlap of the colliding Pb nuclei. A template-fitting method is presented to estimate the quark- and gluon-like jet fractions in an inclusive jet sample using jet charge templates from Monte Carlo simulations. The jet charge template-fitting results for quark- and gluon-like jet fractions in pp and PbPb collisions test the color charge dependence of jet energy loss due to interactions with the quark-gluon plasma.
DOI: https://doi.org/10.22323/1.387.0170
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