Speaker
Description
The purpose of this study is to elucidate the parton energy loss mechanism depending on path-length within the quark-gluon plasma (QGP) medium. In relativistic heavy ion collision experiments, it is difficult to directly observe the QGP because of its short life time and small size. Detecting a high momentum parton which passes through the QGP provide information of the QGP properties via the energy loss of the parton. The parton is detected as a jet and the parton energy loss is measured as the jet suppression. In general, there are two ways of measuring the jet suppression: the jet nuclear modification factor ($R_{\mathrm{AA}}^{\mathrm{jet}}$) and the jet emission azimuthal anisotropy ($v_{2}^{\mathrm{jet}}$). Each independent measurement of the $R_{\mathrm{AA}}^{\mathrm{jet}}$ or $v_{2}^{\mathrm{jet}}$ has not clarified the parton energy loss mechanism.
Thus, we devised and developed a new simulation with parton energy loss models ($\Delta E = CL^{n}$), which the $C$ is an arbitrary coefficient, the $L$ is the path-length, and the $n$ is a model dependent parameter. In this simulation, using the measured jet yield $p_{\mathrm{T}}$ distributions as input, it can provide the $R_{\mathrm{AA}}^{\mathrm{jet}}$ or $v_{2}^{\mathrm{jet}}$ and quantify the $C$ and $L$.
In this presentation, we will show the comparison of the simulation results with the measured results by the LHC-ALICE experiment and the values of the $C$ and $L$ determined by this simulation.
| Category | Experiment |
|---|
