Introduction to Hard Scattering Processes and Recent Results from Hard Probes at RHIC and LHC

A summary is presented of recent heavy-ion collision results from hard scattering processes at RHIC and LHC. Hadrons with large transverse momentum are suppressed in heavy- ion collisions compared to proton-proton interactions, including those hadrons with heavy quarks (charm, beauty). Jets are quen...

Full description

Saved in:
Bibliographic Details
Published in:Journal of physics. Conference series 2015-07, Vol.630 (1), p.12052
Main Author: Harris, John W
Format: Article
Language:English
Subjects:
Charm (particle physics)
Correlation
Energy dissipation
Hadrons
Heavy ions
Ionic collisions
Jets
Large Hadron Collider
Partons
Physics
Protons
Relativistic Heavy Ion Collider
Scattering
Transverse momentum
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A summary is presented of recent heavy-ion collision results from hard scattering processes at RHIC and LHC. Hadrons with large transverse momentum are suppressed in heavy- ion collisions compared to proton-proton interactions, including those hadrons with heavy quarks (charm, beauty). Jets are quenched and modifications to their fragmentation are observed, the effects increasing with the centrality of the heavy-ion collision. The heavy-ion measurements are compared to those in proton-proton and proton-nucleus collisions. These results when compared to theory are consistent with the suppression and jet quenching being a product of parton energy loss in a hot QCD medium. Correlations are presented for di-jets, jets with trigger photons, and hadrons with trigger jets. The di-jet correlations exhibit a di-jet energy and momentum imbalance that increases with the centrality of the collision. The correlation results indicate that the parton energy loss is redistributed to lower momentum particles at larger angles from the axis of the hard-scattered parton.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/630/1/012052