@misc{10481/85352,
year = {2023},
month = {11},
url = {https://hdl.handle.net/10481/85352},
abstract = {Parton energy loss in the quark–gluon plasma (QGP) is studied with a measurement of photon-tagged jet production in 1.7 nb−1 of Pb+Pb data and 260 pb−1 of pp data, both at sNN=5.02 TeV, with the ATLAS detector. The process pp →γ+jet+X and its analogue in Pb+Pb collisions is measured in events containing an isolated photon with transverse momentum (pT) above 50 GeV and reported as a function of jet pT. This selection results in a sample of jets with a steeply falling pT distribution that are mostly initiated by the showering of quarks. The pp and Pb+Pb measurements are used to report the nuclear modification factor, RAA, and the fractional energy loss, Sloss, for photon-tagged jets. In addition, the results are compared with the analogous ones for inclusive jets, which have a significantly smaller quark-initiated fraction. The RAA and Sloss values are found to be significantly different between those for photon-tagged jets and inclusive jets, demonstrating that energy loss in the QGP is sensitive to the colour-charge of the initiating parton. The results are also compared with a variety of theoretical models of colour-charge-dependent energy loss.},
organization = {EU-ESF},
organization = {GenT Programmes Generalitat Valenciana , Spain},
organization = {La Caixa Banking Foundation},
organization = {PROMETEO},
organization = {H2020 Marie Skłodowska-Curie Actions
 	MSCA},
organization = {CERN},
organization = {European Research Council
 
 	ERC},
organization = {European Cooperation in Science and Technology
 	COST},
organization = {Generalitat de Catalunya},
organization = {Agencia Nacional de Promoción Científica y Tecnológica
 	ANPCyT},
organization = {Ministerio de Ciencia e Innovación
 	MICINN},
organization = {Horizon 2020},
organization = {European Regional Development Fund
 	ERDF},
organization = {Agencia Nacional de Investigación y Desarrollo
 	ANID},
organization = {PIC (Spain)},
publisher = {Elsevier},
title = {Comparison of inclusive and photon-tagged jet suppression in 5.02 TeV Pb+Pb collisions with ATLAS},
doi = {10.1016/j.physletb.2023.138154},
author = {Atlas Collaboration and Aad, G. and Rodríguez Chala, Mikael},
}