PAN Seminar:Ibrahim Chahrour, Heavy flavor jet substructure at LHCb

When:
November 8, 2024
3:30 p.m. to 4:30 p.m.
Event category: Seminar
In-person

Speaker: Ibrahim Chahrour, University of Michigan 

Title: QCD Jets 

Abstract: The substructure of QCD jets has garnered significant attention with the advent of infrared and collinear safe clustering algorithms and observables. A key question emerging from these studies is how in-jet emissions at soft and hard energy scales, across various angles, differ with the mass of the emitting parton. The Lund jet plane (LJP) is a perturbatively well-defined substructure observable that maps the radiation pattern of jets onto a 2D plane, visually distinguishing emissions with different kinematics. Comparing the LJP for jets containing hadrons of low versus high mass enables the testing of QCD splitting functions from first-principles calculations across both soft and hard regimes and at different radiation angles. An experimental representation of the LJP is constructed by reclustering jets using the Cambridge/Aachen algorithm and then declustering them along the hardest/heavy-flavor branch, recording each consecutive emission. In this talk, I will present the first measurement of the LJP for charm- and beauty-initiated jets at $sqrt{s} = 13$ TeV at LHCb. Mass effects are observed in the collinear region of the LJP through the dead cone effect.

Contact

Claude Pruneau
7342768565
aa7526@wayne.edu

Cost

Free
November 2024
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