@misc{10481/60173,
year = {2019},
month = {7},
url = {http://hdl.handle.net/10481/60173},
abstract = {Charged-particle fragmentation functions for jets azimuthally balanced by a high-transverse-momentum, prompt, isolated photon are measured in 25 pb−1 of pp and 0.49 nb−1 of Pb+Pb collision data at 5.02 TeV per nucleon pair recorded with the ATLAS detector at the Large Hadron Collider. The measurements are compared to predictions of Monte Carlo generators and to measurements of inclusively selected jets. In pp collisions, a different jet fragmentation function in photon-tagged events from that in inclusive jet events arises from the difference in fragmentation between light quarks and gluons. The ratios of the fragmentation functions in Pb+Pb events to that in pp events are used to explore the parton color-charge dependence of jet quenching in the hot medium. In relatively peripheral collisions, fragmentation functions exhibit a similar modification pattern for photon-tagged and inclusive jets. However, photon-tagged jets are observed to have larger modifications than inclusive jets in central Pb+Pb events.},
organization = {We acknowledge the support of ANPCyT, Argentina;
YerPhI, Armenia; ARC, Australia; BMWFW and FWF,
Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and
FAPESP, Brazil; NSERC, NRC, and CFI, Canada; CERN;
CONICYT, Chile; CAS, MOST, and NSFC, China;
COLCIENCIAS, Colombia; MSMT CR, MPO CR, and
VSC CR, Czech Republic; DNRF and DNSRC, Denmark;
IN2P3-CNRS, CEA-DRF/IRFU, France; SRNSFG, Georgia; BMBF, HGF, and MPG, Germany; GSRT,
Greece; RGC, Hong Kong SAR, China; ISF and
Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS,
Japan; CNRST, Morocco; NWO, Netherlands; RCN,
Norway; MNiSW and NCN, Poland; FCT, Portugal;
MNE/IFA, Romania; MES of Russia and NRC KI,
Russian Federation; JINR; MESTD, Serbia; MSSR,
Slovakia; ARRS and MIZŠ, Slovenia; DST/NRF, South
Africa; MINECO, Spain; SRC andWallenberg Foundation,
Sweden; SERI, SNSF, and Cantons of Bern and Geneva,
Switzerland; MOST, Taiwan; TAEK, Turkey; STFC,
United Kingdom; DOE and NSF, USA. In addition,
individual groups and members have received support
from BCKDF, CANARIE, CRC, and Compute Canada,
Canada; COST, ERC, ERDF, Horizon 2020, and Marie
Skłodowska-Curie Actions, European Union;
Investissements d’ Avenir Labex and Idex, ANR, France;
DFG and AvH Foundation, Germany; Herakleitos, Thales,
and Aristeia Programmes co-financed by EU-ESF and the
Greek NSRF, Greece; BSF-NSF and GIF, Israel; CERCA
Programme Generalitat de Catalunya, Spain; The Royal
Society and Leverhulme Trust, United Kingdom.},
publisher = {American Physical Society},
title = {Comparison of fragmentation functions for light-quark- and gluon-dominated jets from pp and Pb+Pb collisions in ATLAS},
doi = {10.1103/PhysRevLett.123.042001},
author = {Aaboud, M. and Aguilar Saavedra, Juan Antonio and Atlas Collaboration},
}