First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC

Acharya, S. and Adamová, D. and Aggarwal, M.M. and et al., . (2018) First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 776. pp. 249-264. ISSN 03702693

Full text not available from this repository.
Official URL: http://www.sciencedirect.com/science/article/pii/S...

Abstract

This letter presents the first measurement of jet mass in Pb–Pb and p–Pb collisions at sNN=2.76 TeV and sNN=5.02 TeV, respectively. Both the jet energy and the jet mass are expected to be sensitive to jet quenching in the hot Quantum Chromodynamics (QCD) matter created in nuclear collisions at collider energies. Jets are reconstructed from charged particles using the anti-kT jet algorithm and resolution parameter R=0.4. The jets are measured in the pseudorapidity range |ηjet|<0.5and in three intervals of transverse momentum between 60 GeV/c and 120 GeV/c. The measurement of the jet mass in central Pb–Pb collisions is compared to the jet mass as measured in p–Pb reference collisions, to vacuum event generators, and to models including jet quenching. It is observed that the jet mass in central Pb–Pb collisions is consistent within uncertainties with p–Pb reference measurements. Furthermore, the measured jet mass in Pb–Pb collisions is not reproduced by the quenching models considered in this letter and is found to be consistent with PYTHIA expectations within systematic uncertainties.

Item Type: Article
Subjects: T Technology > T Technology (General)
Divisions: Faculties > Faculty of Engineering and Technology > Zakir Husain College of Engineering & Technology > Department of Applied Physics
Depositing User: AMU Library
Date Deposited: 20 Jan 2018 09:38
Last Modified: 20 Jan 2018 09:40
URI: http://ir.amu.ac.in/id/eprint/10891

Actions (login required)

View Item View Item