Energy correlators for gluon splitting to heavy quarks

by Jasmine Therese Brewer (University of Oxford (GB))

Monday 20 Jan 2025, 11:00 → 12:00 Europe/Zurich

Aula Caldirola (Università degli Studi di Milano)

Energy correlators inside of high energy jets provide a powerful tool to image the intrinsic and emergent angular scales of QCD. They are particularly powerful in heavy-ion collisions, where they can provide unprecedented insight on the interplay between the vacuum scales inside of a jet and its modification in the quark-gluon plasma. However, as with traditional jet substructure, experimentally these correlators will mix different angular features associated with quark and gluon jets. We show that energy correlators of jets containing a gluon splitting to heavy quarks can resolve this problem, by providing clean experimental access to two- and three-point correlators with known parton flavors through jets tagged with heavy hadrons. We calculate the medium modification of the two-point energy correlator of the gluon splitting to heavy quarks, and demonstrate how the quark mass gives direct access to formation time-dependent medium modification in these correlators.

JasmineBrewer-Milan.pdf