b-jet Identification in PbPb Collisions with CMS
Matthew Nguyen (for the CMS Collaboration)
TL;DR
This paper demonstrates CMS's ability to identify b-jets in PbPb collisions using displaced vertices, measuring the b-jet to inclusive jet ratio to study flavor-dependent jet quenching effects.
Contribution
It introduces a method for b-jet identification in heavy-ion collisions and compares the results to proton-proton collisions and simulations.
Findings
b-jet to inclusive jet ratio measured in PbPb collisions
Comparison with pp collisions and simulations
Insights into flavor dependence of jet quenching
Abstract
The flavor dependence of jet quenching is a powerful handle to discriminate between models of parton energy loss in heavy-ion collisions. We demonstrate the capacity of CMS to identify jets initiated by bottom quarks using displaced vertices reconstructed in the silicon tracking system. The b-jet to inclusive jet ratio is measured in PbPb collisions and compared to pp collisions and simulations at the same center-of-mass energy.
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