Abstract
The ATLAS experiment at the LHC has undertaken a broad physics program to probe and characterize the hot nuclear matter created in relativistic lead-lead collisions. This overview presents recent results on production of electroweak bosons, charmonia, charged-particles, jets, and bulk particle collectivity from Pb+Pb and p +Pb collisions at 2.76 TeV and 5.02 TeV, respectively, as well as on electromagnetic processes in ultra-peripheral Pb+Pb collisions at 5.02 TeV.
Highlights
The Quark-Gluon Plasma (QGP) was first observed in experiments at RHIC [1,2,3,4] and since it has been intensively studied in relativistic heavy-ion (HI) collisions
Higher collision energies available at the LHC compared to RHIC, result in increased volume, lifetime and temperature of QGP
We are interested in understanding of the collision geometry and centrality as well as in how the free nucleon parton distribution functions are modified in the nuclear environment
Summary
The Quark-Gluon Plasma (QGP) was first observed in experiments at RHIC [1,2,3,4] and since it has been intensively studied in relativistic heavy-ion (HI) collisions. One can study properties of QGP using hard probes of different scales (electroweak bosons, jets, heavy quarks) or measuring parameters describing collective behaviour of the medium. Passing through the medium hard probes interact weakly or strongly with it providing information on its properties. Due to their large electric charge heavy-ions are strong sources of high energy photons. In the central collisions, when the overlap of nuclei is large, one expects a high number of Ncoll and a high number of nucleons participating in the collision, Npart. The TAA is the mean nuclear thickness function and is a measure of the nuclear overlap i.e. of the number of nucleons which can participate in the hard scattering processes
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
