Speaker
Description
In the LHC and RHIC experiments, strong collective behaviors are being observed in high multiplicity events
in p-p and p-A collisions suggesting that quark-gluon plasma can be created in such small systems.
In this work, we utilize an improved version of MARTINI to calculate the effect of QGP
on the jet energy loss in p-A collisions with the well-calibrated 3+1D hydrodynamics medium.
The two important improvements implemented in this version of MARTINI are the finite medium size effect as formulated by Caron-Huot and Gale [1],
and the running coupling effect as proposed by Young, Schenke, Jeon and Gale [2]. Since the system we are dealing with is small,
both of these improvements are critical.
In this work, we first present that this improved model provides better descriptions of the nuclear modification factor ($R_{AA}$) in Pb-Pb collisions at 2.76TeV. Then we show a systematic measurement of jet quenching in small systems can provide a strong evidence of QGP formation.
In addition, harmonic flows of energetic partons and rapidity dependence of $R_{pA}$ in several collision systems will be highlighted.
$[1]$ S. Caron-Huot and C. Gale, Phys. Rev. C82, 064902 (2010), arXiv:1006.2379
$[2]$ C. Young, B. Schenke, S. Jeon, and C. Gale, Nucl. Phys. A910-911, 494 (2013), arXiv:1209.5679
| Presentation type | Oral |
|---|
