Speaker
Eric Andrew Appelt
(Vanderbilt University (US))
Description
One of the signatures of the strongly interacting medium produced in central PbPb collisions is
the suppression of high-$p_{\rm T}$ jets and charged particles. In order to to disentangle the
initial state and final state effects in heavy ion collisions, the nuclear modification factor
of both jets and of charged-particles in pPb ($R_{\rm pPb}$) and PbPb ($R_{\rm PbPb}$)
collisions are presented. The spectra of both jets and charged-particles in pp collisions at
$\sqrt{s} = 2.76$, PbPb collisions at $\sqrt{s_{NN}} = 2.76$ TeV, and pPb collisions at
$\sqrt{s_{NN}} = 5.02$ TeV, have been measured with the CMS detector using high statistics
samples. The $R_{\rm pPb}$ of charged particles is determined by dividing the measured pPb
spectrum by a pp reference spectrum constructed using interpolation methods, or alternatively
from PYTHIA simulations.
| On behalf of collaboration: | CMS |
|---|
Author
Eric Andrew Appelt
(Vanderbilt University (US))
