Conveners
Parallel Session V: High pT hadron suppression in A+A (I)
- Takao Sakaguchi (BNL)
Transverse momentum spectra of charged particles are important baseline measurements of perturbative QCD particle production in pp collisions and, in Pb-Pb collisions, they provide insight on the parton energy loss in the hot and dense QCD medium. In this contribution we present the ALICE measurements of transverse momentum spectra in pp and Pb-Pb collisions at the unprecedented energy of...
In the high-luminosity 5.02 TeV collision-energy per nucleon pair PbPb and pp data provided by LHC in 2015, CMS measured the nuclear modification factor of charged particles from a transverse momentum of 0.7 GeV/c to 400 GeV/c in the central rapidity region. The centrality dependence of the nuclear modification factor is explored in several bins of collision centrality, from the most central...
Nuclear modification factor $R_{AA}$ for large $p_T$ single hadron is studied
in a next-to-leading order (NLO) perturbative QCD (pQCD) parton model
with medium-modified fragmentation functions (mFFs) due to jet quenching
in high-energy heavy-ion collisions. The energy loss of the hard partons in the QGP is incorporated in the mFFs which utilize two most
important parameters to characterize the...
The ALICE experiment is mainly devoted to the study of Quark-Gluon Plasma (QGP) expected to be created in heavy-ion collisions at the LHC and RHIC $AA$ collision energies. In the early stage of such collisions, partons and photons can be produced in energetic hard processes. High energy partons will interact with the QGP, and from the measurement of the particles issued from the parton...
The transverse momentum spectrum of $\eta$ meson in relativistic heavy-ion collisions is studied at the next-to-leading-order (NLO) within the perturbative QCD, where the jet quenching effect in the QGP is incorporated with the effectively medium-modified $\eta$ fragmentation functions using the higher-twist approach. We show that the theoretical simulations could give nice descriptions of...