Speaker
Ran Bi
(Massachusetts Inst. of Technology (US))
Description
A typical approach to study the quark gluon plasma produced in heavy ion
collisions is to understand the passage of elementary particles through it. As
electroweak bosons such as photons and Z bosons do not participate in the
strong interaction, their correlation with jets within the same event is a
clean probe of the medium-induced energy loss of jets. With high statistics
PbPb and pp collision data taken at a center-of-mass energy of 5.02 TeV with
the CMS detector, boson-jet correlations and, for the first time in PbPb
collisions, photon-tagged jet fragmentation functions have been measured. These
measurements provide strong evidence for medium-induced jet energy loss and offer
a first look at jet substructure in photon-jet events.
Primary author
Ran Bi
(Massachusetts Inst. of Technology (US))
