scholarly journals $a_S$ from soft QCD jet fragmentation functions

2019 ◽  
Author(s):  
Redamy Pérez Ramos ◽  
David d’Enterria
Keyword(s):  
Jet Fragmentation ◽  
Fragmentation Functions

scholarly journals Polarized jet fragmentation functions

2020 ◽  
Vol 809 ◽  
pp. 135756 ◽  
Author(s):  
Zhong-Bo Kang ◽  
Kyle Lee ◽  
Fanyi Zhao
Keyword(s):  
Jet Fragmentation ◽  
Fragmentation Functions

scholarly journals Medium modification of γ-jet fragmentation functions in Pb+Pb collisions at LHC

2020 ◽  
Vol 810 ◽  
pp. 135783
Author(s):  
Wei Chen ◽  
Shanshan Cao ◽  
Tan Luo ◽  
Long-Gang Pang ◽  
Xin-Nian Wang
Keyword(s):  
Jet Fragmentation ◽  
Medium Modification ◽  
Fragmentation Functions

scholarly journals Non-Extensive Motivated Parton Fragmentation Functions

Proceedings ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 12 ◽  
Author(s):  
Adam Takacs ◽  
Gergely Gábor Barnaföldi
Keyword(s):  
Experimental Data ◽  
Fragmentation Function ◽  
Jet Fragmentation ◽  
Fragmentation Functions ◽  
New Form ◽  
Scale Evolution

A new form of fragmentation function is presented here, motivated by earlier non-extensive studies of jet fragmentation. We parametrized our Tsallis-like function on pion spectra and compared it to the most common fragmentation function parametrizations. It is shown that the new form is in agreement with earlier parametrizations, furthermore, its scale evolution overlaps better with the experimental data.

scholarly journals QGP modification to single inclusive jets in a calibrated transport model

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Weiyao Ke ◽  
Xin-Nian Wang
Keyword(s):  
Transport Model ◽  
Gluon Plasma ◽  
Model Parameters ◽  
Inclusive Jets ◽  
Size Dependent ◽  
Hydrodynamic Response ◽  
Nuclear Modification Factors ◽  
Jet Fragmentation ◽  
Fragmentation Functions ◽  
Inclusive Jet

Abstract We study inclusive jet suppression and modifications in the quark-gluon plasma (QGP) with a transport-based model. The model includes vacuum-like parton shower evolution at high-virtuality, a linearized transport for jet-medium interactions, and a simple ansatz for the jet-induced hydrodynamic response of the medium. Model parameters are calibrated to nuclear modification factors for inclusive hadron $$ {R}_{AA}^h $$ R AA h and single inclusive jets $$ {R}_{AA}^j $$ R AA j with cone size R = 0.4 in 0–10% central Au-Au and Pb-Pb collisions measured at the RHIC and LHC. The calibrated model consistently describes the cone-size dependent $$ {R}_{AA}^j $$ R AA j (R), modifications to inclusive jet fragmentation functions and jet shape. We discuss the origin of these modifications by analyzing the medium-induced jet energy flow in this model and elucidate the interplay of hard parton evolution and jet-induced medium response. In particular, we demonstrate that the excess of soft hadrons at pT∼ 2 GeV/c in jet fragmentation function and jet shape at large $$ r=\sqrt{\Delta {\eta}^2+\Delta {\phi}^2} $$ r = Δ η 2 + Δ ϕ 2 are consequences of both soft medium-induced gluon radiation and jet-induced medium excitation.

scholarly journals Jet fragmentation functions for Z-tagged jets

2019 ◽  
Vol 798 ◽  
pp. 134978 ◽  
Author(s):  
Zhong-Bo Kang ◽  
Kyle Lee ◽  
John Terry ◽  
Hongxi Xing
Keyword(s):  
Jet Fragmentation ◽  
Fragmentation Functions

A NLO ANALYSIS ON AZIMUTHAL ANISOTROPY OF HIGH pT HADRON IN HEAVY-ION COLLISIONS

2007 ◽  
Vol 16 (10) ◽  
pp. 3185-3192 ◽  
Author(s):  
HANZHONG ZHANG ◽  
ENKE WANG
Keyword(s):  
Parton Model ◽  
Heavy Ion ◽  
High Energy ◽  
Azimuthal Anisotropy ◽  
Jet Quenching ◽  
Dense Medium ◽  
Quenching Effect ◽  
Ion Collisions ◽  
Jet Fragmentation ◽  
Fragmentation Functions

The azimuthal anisotropy of high pT hadron in high energy A + A collisions is studied within the next-to-leading order (NLO) perturbative QCD parton model. The effect of jet quenching is incorporated via a model for modified jet fragmentation functions due to radiative parton energy loss in dense medium. Because NLO contributions behave with stronger quenching effect than LO contributions, the NLO elliptic flow parameter is found to be larger than the LO in the medium pT region.

Sign in / Sign up

Export Citation Format

Share Document