Mapping the Redistribution of Jet Energy in PbPb Collisions with CMS (20'+10')

Jul 23, 2019, 11:00 AM
32-123 (MIT)


Plenary Talk Session


Jing Wang (Massachusetts Inst. of Technology (US))


Measurements of jets produced in collisions of heavy ions, such as dijet asymmetry, boson-jet momentum imbalance, and inclusive jet spectra, have consistently indicated final states of less energy as compared to vacuum reference. This energy loss is interpreted as signature of Quark-Gluon Plasma, the hot and dense medium of deconfined partons produced in the collision of relativistic nuclei. Subsequent studies have shown that the energy lost by jets is redistributed to large angle and in multiplicities of softer particles. In this talk, a thorough accounting of jet energy redistribution through missing momentum techniques, radial scans of jet spectra, and large angle jet shapes as measured with the CMS detector. These results can distinguish between mechanisms of parton-medium interaction as encoded in various Monte Carlo and give insight into the medium response.

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