Speaker
Description
The cross-sections and substructure of jets in eA reactions in a
future electron-ion collider (EIC) are expected to be modified
compared to the vacuum. At leading order in the strong
coupling, a jet produced at an EIC is initiated as an energetic
quark, and its substructure arises from its splitting into a quark-
gluon system. The spectrum of gluons within this quark jet is then
heavily modified by multiple scattering in the QCD medium,
allowing jet substructure to be used to pin down the transport
properties of cold nuclear matter. In this talk, I will present new
results on the gluon spectrum of a quark jet computed to an
arbitrary order in opacity (the average number of scatterings in
the medium). This calculation goes beyond the simplifying limit
in which the gluon radiation is soft and can be interpreted as
energy loss of the quark, and it extends previous work which
computes the full gluon spectrum only to first order in opacity.
In addition to presenting the general structure of the all-orders
result, I will also show specific evaluations of the gluon
spectrum at the first few orders in opacity and discuss its
sensitivity to the transport properties of large nuclei.
| Content type | Theory |
|---|---|
| Centralised submission by Collaboration | Presenter name already specified |
