Quark Matter 2012

Session

Parallel 2B: Jets (Chair P. Jacobs)

60

14 Aug 2012, 16:45

213. Studies of jet quenching and b-jet tagging in PbPb collisions at 2.76 TeV with CMS

Matthew Nguyen (Ecole Polytechnique (FR))

14/08/2012, 16:45

Jets

Oral Presentation

This presentation describes jet measurements in PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV performed with the CMS detector at the LHC. With data from the 2011 Run, dijet measurements have been extended to large transverse momentum, up to 350 GeV/c. The dijet momentum balance and angular correlations are studied in detail as a function of collision centrality and...

480. Measurements of jet suppression with ATLAS

Aaron Richard Angerami (Columbia University (US))

14/08/2012, 17:05

Oral Presentation

The energy loss of high-pt partons through the phenomenon of jet quenching provides insight into the transport properties of the medium created in relativistic heavy ion collisions. Evidence for this energy loss was first experimentally established through observation of high-pt hadron suppression at RHIC. This observable is not ideal for detailed quenching measurements as the final state...

208. Inclusive jet and charged hadron nuclear modification factors in PbPb collisions at 2.76 TeV with CMS

Marguerite Belt Tonjes (University of Maryland (US))

14/08/2012, 17:25

Jets

Oral Presentation

Measurements of charged hadron and inclusive jet transverse momentum (pT) spectra in pp and PbPb collisions at a nucleon-nucleon center-of-mass energy of 2.76 TeV with the CMS detector will be reported. These measurements make use of the high-statistics jet-triggered data recorded in 2011, including the total available PbPb luminosity of 150/ub. Charged particles are reconstructed using an...

2. Quantifying a Possibly Reduced Jet-Medium Coupling of the sQGP at the Large Hadron Collider

Barbara Betz (Frankfurt University)

14/08/2012, 17:45

Jets

Oral Presentation

Recent LHC data on the nuclear modification factor of jet fragments suggest that the jet-medium coupling at the Large Hadron Collider (LHC) may be reduced relative to the coupling at the Relativistic Hadron Collider (RHIC). We estimate the magnitude of that reduction from a combined fit to the data on the nuclear modification factor and on the elliptic flow at both RHIC and LHC energies over...

442. Inclusive jet spectra in 2.76 TeV Pb-Pb collisions from the ALICE experiment

Rosi Jan Reed (Yale University (US))

14/08/2012, 18:05

Oral Presentation

Measurements of high-pt particle production in heavy-ion collisions at RHIC have shown that medium-induced energy loss affects the partons produced in the early stage of a heavy-ion collision. The increased initial production cross section for partons at LHC energies makes fully reconstruted jets available in a wide kinematic range, which allows for a differential investigation of parton...