Conveners
Jets and High pT Hadrons II
- Francois Gelis (Institut de Physique Theorique (FR))
Austin Alan Baty
(Massachusetts Inst. of Technology (US))
9/28/15, 5:00 PM
Jets and High pT Hadrons
Contributed talk
The nuclear parton distribution function and flavor composition of hard scattering processes can be accurately studied using the jet fragmentation functions. Recent measurements of the pPb nuclear modification factor ($R_{pPb}$), with diverging values for inclusive jets and charged hadrons, have raised question on jet fragmentation properties in pPb collisions. These spectra measurements are...
Leticia Cunqueiro Mendez
(CERN)
9/28/15, 5:20 PM
Jets and High pT Hadrons
Contributed talk
We explore the possible modification of the inclusive charged jet substructure due to jet quenching in Pb-Pb collisions at 2.76 TeV by measuring a set of jet shapes. The set of shapes includes the first order angularity, the pTD and the difference between the leading and subleading tracks of the jet. The shapes are measured with a constituent cutoff of 0.15 GeV and small jet resolution...
Xiaoming Zhang
(Lawrence Berkeley National Lab. (US))
9/28/15, 5:40 PM
Jets and High pT Hadrons
Contributed talk
Jets have proven to be a powerful experimental tool to ascertain the properties of the QGP. In this work, we propose a new class of jet substructure observables which, unlike fragmentation functions, are largely insensitive to the poorly known physics of hadronization. We show that intra jet sub-jet structures provide us with a large discriminating power between different jet quenching Monte...
Rainer Fries
(Texas A&M University)
9/28/15, 6:00 PM
Jets and High pT Hadrons
Contributed talk
We have developed a hadronization model for jet parton showers based on the quark recombination model. Gluons at the end of a perturbative shower evolution undergo a non-perturbative splitting into quark and antiquark pairs, then a Monte-Carlo version of instantaneous quark recombination is applied. Finally remnant quarks (those which have not found a recombination partner) are connected by...
Mr
Wei Chen
(CCNU)
9/28/15, 6:20 PM
Correlations and Fluctuations
Contributed talk
We use a Linear Boltzmann Transport model (LBT model) coupled to (3+1)D ideal hydrodynamic evolution in real time with fluctuating initial conditions simulate both the transport of jet shower partons and jet-induced medium excitation. In this coupled approach, propagation of energetic shower partons are treated in the Linear Boltzmann transport (LBT) model with the 3+1D hydrodynamic model...
Urs Wiedemann
(CERN)
9/28/15, 6:40 PM
Jets and High pT Hadrons
Contributed talk
The experimental finding that in pA collisions at the LHC, $R_{pA}^{\rm jet}$ is consistent with unity at high transverse energies, while $R_{pA}^{\rm hadron}$ exceeds unity above $p_T \sim 30$ GeV poses a fundamental problem for our understanding of high-$p_T$ processes in nuclear collisions. It can neither be accounted for in a collinear factorized formalism with process-independent...
