Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-07-03
J.Phys.G37:025104,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
21 pages, 11 eps figures. Experimental errors in figures 4-6 and minor misprints corrected
Scientific paper
10.1088/0954-3899/37/2/025104
We present a global fit to single- and double-inclusive suppression data of high-$p_T$ particles in central Au+Au collisions at top RHIC energy. We also include in this analysis data on heavy quarks via their D and B meson semi-leptonic decays (i.e. non-photonic electrons). The analysis is based on the parton quenching weights for medium-induced gluon radiation computed in the BDMPS approximation then embedded in a hydrodynamical description of the bulk medium. Our results indicate that values of the transport coefficient $\hat q$ more than four times larger than perturbative estimates are preferred by experimental data. This confirms previous calculations based on simpler implementations of the medium geometry or only the single-inclusive suppression. We also comment on the statistical compatibility of the heavy quark data within a radiative only energy loss scenario, and on the sensitivity of the results to nuclear modification of the parton distribution functions (PDFs) and to assumptions on the energy loss during times in the collision prior to the hydrodynamical behavior.}
Armesto Nestor
Cacciari Matteo
Hirano Tetsufumi
Nagle James L.
Salgado Carlos A.
No associations
LandOfFree
Constraint fitting of experimental data with a jet quenching model embedded in a hydrodynamical bulk medium does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Constraint fitting of experimental data with a jet quenching model embedded in a hydrodynamical bulk medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraint fitting of experimental data with a jet quenching model embedded in a hydrodynamical bulk medium will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-706183