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Jet momentum dependence of jet quenching in PbPb collisions at sNN=2.76 TeV

S. Chatrchyan, +2176 more
- Vol. 712, Iss: 3, pp 176-197
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TLDR
In this article, the dijet momentum balance and angular correlations are studied as a function of collision centrality and leading jet transverse momentum for PbPb collisions at a nucleon-nucleon center-of-mass energy of 276 TeV.
Abstract
Dijet production in PbPb collisions at a nucleon–nucleon center-of-mass energy of 276 TeV is studied with the CMS detector at the LHC A data sample corresponding to an integrated luminosity of 150 μb−1 is analyzed Jets are reconstructed using combined information from tracking and calorimetry, using the anti-kT algorithm with R=03 The dijet momentum balance and angular correlations are studied as a function of collision centrality and leading jet transverse momentum For the most peripheral PbPb collisions, good agreement of the dijet momentum balance distributions with pp data and reference calculations at the same collision energy is found, while more central collisions show a strong imbalance of leading and subleading jet transverse momenta attributed to the jet-quenching effect The dijets in central collisions are found to be more unbalanced than the reference, for leading jet transverse momenta up to the highest values studied

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Journal ArticleDOI

A Large Hadron Electron Collider at CERN

J. L. Abelleira Fernandez, +198 more
- 30 Jun 2012 - 
TL;DR: The Large Hadron Electron Collider (LHeC) as discussed by the authors was designed to achieve an integrated luminosity of O(100 ),fb$^{-1}, which is the cleanest high resolution microscope of mankind.
Journal ArticleDOI

QCD and strongly coupled gauge theories: challenges and perspectives

Nora Brambilla, +53 more
TL;DR: In this paper, the progress, current status, and open challenges of QCD-driven physics, in theory and in experiment, are highlighted, highlighting how the strong interaction is intimately connected to a broad sweep of physical problems, in settings ranging from astrophysics and cosmology to strongly coupled, complex systems in particle and condensed-matter physics, as well as searches for physics beyond the Standard Model.
Journal ArticleDOI

Heavy Ion Collisions: The Big Picture, and the Big Questions

TL;DR: The physics of heavy ion collisions quickly form a droplet of quark-gluon plasma (QGP) with a remarkably small viscosity as discussed by the authors, which is perhaps the simplest form of complex quantum matter that we know of.
Journal ArticleDOI

Measurement of the jet radius and transverse momentum dependence of inclusive jet suppression in lead-lead collisions at √sNN=2.76 TeV with the ATLAS detector

Georges Aad, +2852 more
- 26 Feb 2013 - 
TL;DR: In this paper, the authors measured the effect of jet suppression in heavy ion collisions at the LHC and provided a direct sensitivity to the physics of jet quenching, using a sample of lead-lead collisions at root S-NN = 2.76 TeV.
Journal ArticleDOI

Heavy-quarkonium suppression in p-A collisions from parton energy loss in cold QCD matter

TL;DR: In this paper, the effects of parton energy loss in cold nuclear matter on heavy-quarkonium suppression in p-A collisions were studied, and it was shown from first principles that the medium induced energy loss scales as E.
References
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Journal ArticleDOI

Geant4—a simulation toolkit

S. Agostinelli, +126 more
TL;DR: The Gelfant 4 toolkit as discussed by the authors is a toolkit for simulating the passage of particles through matter, including a complete range of functionality including tracking, geometry, physics models and hits.
Journal ArticleDOI

PYTHIA 6.4 Physics and Manual

TL;DR: The Pythia program as mentioned in this paper can be used to generate high-energy-physics ''events'' (i.e. sets of outgoing particles produced in the interactions between two incoming particles).
Journal ArticleDOI

The anti-$k_t$ jet clustering algorithm

TL;DR: The anti-k-t algorithm as mentioned in this paper behaves like an idealised cone algorithm, in that jets with only soft fragmentation are conical, active and passive areas are equal, the area anomalous dimensions are zero, the non-global logarithms are those of a rigid boundary and the Milan factor is universal.
Journal ArticleDOI

The CMS experiment at the CERN LHC

S. Chatrchyan, +3175 more
TL;DR: The Compact Muon Solenoid (CMS) detector at the Large Hadron Collider (LHC) at CERN as mentioned in this paper was designed to study proton-proton (and lead-lead) collisions at a centre-of-mass energy of 14 TeV (5.5 TeV nucleon-nucleon) and at luminosities up to 10(34)cm(-2)s(-1)
Journal ArticleDOI

Experimental and theoretical challenges in the search for the quark-gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions

Joseph Adams, +366 more
- 08 Aug 2005 - 
TL;DR: In this paper, the most important experimental results from the first three years of nucleus-nucleus collision studies at RHIC were reviewed, with emphasis on results of the STAR experiment.
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Experimental and theoretical challenges in the search for the quark-gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions

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