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@INPROCEEDINGS{Sirimanna:363959,
author = {Sirimanna, Chathuranga and {JETSCAPE Collaboration}},
title = {{I}nterplay of prompt and non-prompt photons in
photon-triggered jet observables},
journal = {The European physical journal / Web of Conferences},
volume = {339},
issn = {2100-014X},
address = {Les Ulis},
publisher = {EDP Sciences},
reportid = {GSI-2026-00162, arXiv:2507.00905},
pages = {05002},
year = {2025},
note = {This is an open access article distributed under the terms
of the Creative Commons Attribution License 4.0
(https://creativecommons.org/licenses/by/4.0/).},
abstract = {Prompt photons are important yet challenging to observe in
relativistic heavy-ion collisions, as they are produced in
the early stages and traverse almost the entire QGP medium
without interaction. Experimental analyses typically employ
isolation cuts, in the hope to identify prompt photons. Most
theoretical studies consider only events with actual prompt
photons, assuming no contribution from isolated non-prompt
photons to reduce computational cost. For the first time, we
present a study that compares simulation results generated
using inclusive (bremsstrahlung) and prompt-photon events
with multiple experimental observables for both p − p and
Pb − Pb collisions at 5.02 TeV. Simulations are carried
out using the multi-stage JETSCAPE framework tuned to
describe the quenching of jets and hadrons. Isolated
non-prompt photons are generated in hard photon
bremsstrahlung, where the photon is radiated at a sufficient
angle to the jet. Several photon triggered jet and jet
substructure observables show significant contributions from
inclusive photons, yielding an improvement in comparison
with experimental data. Novel photon triggered jet
substructure observables are also expected to show new
structures, yet to be detected in experiment. This effort
examines the significance of isolated nonprompt photons
using parameters tuned for a simultaneous description of the
leading hadron and jet spectrum, and thus provides an
independent verification of the multistage evolution
framework.},
month = {Sep},
date = {2024-09-22},
organization = {12th International Conference on Hard
and Electromagnetic Probes of
High-Energy Nuclear Collisions,
Nagasaki (Japan), 22 Sep 2024 - 27 Sep
2024},
cin = {TES},
ddc = {530},
cid = {I:(DE-Ds200)TES-20160901OR397},
pnm = {612 - Cosmic Matter in the Laboratory (POF4-612)},
pid = {G:(DE-HGF)POF4-612},
experiment = {$EXP:(DE-Ds200)no_experiment-20200803$},
typ = {PUB:(DE-HGF)16 / PUB:(DE-HGF)8},
eprint = {2507.00905},
howpublished = {arXiv:2507.00905},
archivePrefix = {arXiv},
SLACcitation = {$\%\%CITATION$ = $arXiv:2507.00905;\%\%$},
doi = {10.1051/epjconf/202533905002},
url = {https://repository.gsi.de/record/363959},
}