Bulletin of the American Physical Society
5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan
Volume 63, Number 12
Tuesday–Saturday, October 23–27, 2018; Waikoloa, Hawaii
Session ML: Hard Probes in High Energy Heavy Ion Collisions
2:00 PM–4:30 PM,
Saturday, October 27, 2018
Hilton
Room: Queen's 5
Chair: Cesar Luiz da Silva, LANL
Abstract ID: BAPS.2018.HAW.ML.5
Abstract: ML.00005 : Isolated photon + hadron and jet correlation in pPb and pp collisions measured by ALICE
3:00 PM–3:15 PM
Presenter:
Miguel I Arratia
(Univ of California - Berkeley)
Author:
Miguel I Arratia
(Univ of California - Berkeley)
The photon-tagged correlation of jets and jet fragments is a promising channel for the study of parton energy loss in nuclear collisions. While existing measurements in pp and nuclear collisions have used high energy photons and jets, we focus on an unexplored kinematic range given by 10<pT<20 GeV/c photons and the corresponding low jet pT. We present results obtained using 5.02 TeV pp and pPb collisions. A combination of isolation and electromagnetic shower-shape variables is used to reduce the large background from meson decays and fragmentation photons. We show how the access to this kinematic range of hard probes was achieved with a novel combination of high rate and low-momentum tracking using the electromagnetic calorimeters and the Inner Tracking System of the ALICE experiment.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.HAW.ML.5
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