DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Resolution effects in the hybrid strong/weak coupling model

Abstract

Within the context of a hybrid strong/weak coupling model of jet quenching, we study the consequences of the fact that the plasma produced in a heavy ion collision cannot resolve the substructure of a collimated parton shower propagating through it with arbitrarily fine spatial resolution. We introduce a screening length parameter, Lres, proportional to the inverse of the local temperature in the plasma, estimating a range for the value of the proportionality constant via comparing weakly coupled QCD calculations and holographic calculations appropriate in strongly coupled plasma. We then modify the hybrid model so that when a parton in a jet shower splits, its two offspring are initially treated as unresolved, and are only treated as two separate partons losing energy independently after they are separated by a distance Lres. This modification delays the quenching of partons with intermediate energy, resulting in the survival of more hadrons in the final state with pT in the several GeV range. We analyze the consequences of different choices for the value of the resolution length, Lres, and demonstrate that introducing a nonzero Lres results in modifications to the jet shapes and jet fragmentations functions, as it makes it more probable for particles carryingmore » a small fraction of the jet energy at larger angles from the jet axis to survive their passage through the quark-gluon plasma. Furthermore, these effects are, however, small in magnitude, something that we confirm via checking for effects on missing-pT observables.« less

Authors:
 [1];  [2];  [1]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics
  2. McGill Univ., Montreal, QC (Canada). Dept of Physics
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP)
OSTI Identifier:
1501474
Grant/Contract Number:  
SC0011090
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2018; Journal Issue: 3; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; heavy ion phenomenology; jets

Citation Formats

Hulcher, Zachary, Pablos, Daniel, and Rajagopal, Krishna. Resolution effects in the hybrid strong/weak coupling model. United States: N. p., 2018. Web. doi:10.1007/jhep03(2018)010.
Hulcher, Zachary, Pablos, Daniel, & Rajagopal, Krishna. Resolution effects in the hybrid strong/weak coupling model. United States. https://doi.org/10.1007/jhep03(2018)010
Hulcher, Zachary, Pablos, Daniel, and Rajagopal, Krishna. Mon . "Resolution effects in the hybrid strong/weak coupling model". United States. https://doi.org/10.1007/jhep03(2018)010. https://www.osti.gov/servlets/purl/1501474.
@article{osti_1501474,
title = {Resolution effects in the hybrid strong/weak coupling model},
author = {Hulcher, Zachary and Pablos, Daniel and Rajagopal, Krishna},
abstractNote = {Within the context of a hybrid strong/weak coupling model of jet quenching, we study the consequences of the fact that the plasma produced in a heavy ion collision cannot resolve the substructure of a collimated parton shower propagating through it with arbitrarily fine spatial resolution. We introduce a screening length parameter, Lres, proportional to the inverse of the local temperature in the plasma, estimating a range for the value of the proportionality constant via comparing weakly coupled QCD calculations and holographic calculations appropriate in strongly coupled plasma. We then modify the hybrid model so that when a parton in a jet shower splits, its two offspring are initially treated as unresolved, and are only treated as two separate partons losing energy independently after they are separated by a distance Lres. This modification delays the quenching of partons with intermediate energy, resulting in the survival of more hadrons in the final state with pT in the several GeV range. We analyze the consequences of different choices for the value of the resolution length, Lres, and demonstrate that introducing a nonzero Lres results in modifications to the jet shapes and jet fragmentations functions, as it makes it more probable for particles carrying a small fraction of the jet energy at larger angles from the jet axis to survive their passage through the quark-gluon plasma. Furthermore, these effects are, however, small in magnitude, something that we confirm via checking for effects on missing-pT observables.},
doi = {10.1007/jhep03(2018)010},
journal = {Journal of High Energy Physics (Online)},
number = 3,
volume = 2018,
place = {United States},
year = {Mon Mar 05 00:00:00 EST 2018},
month = {Mon Mar 05 00:00:00 EST 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 33 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

Jet quenching pattern at LHC in PYQUEN model
journal, May 2011


Jets in QCD media: From color coherence to decoherence
journal, January 2012


A Monte Carlo model for ‘jet quenching’
journal, March 2009


Matter in extremis: ultrarelativistic nuclear collisions at RHIC
text, January 2004


On the evolution of jet energy and opening angle in strongly coupled plasma
journal, May 2016

  • Chesler, Paul M.; Rajagopal, Krishna
  • Journal of High Energy Physics, Vol. 2016, Issue 5
  • DOI: 10.1007/JHEP05(2016)098

Jet quenching in hot strongly coupled gauge theories revisited: 3-point correlators with gauge-gravity duality
journal, October 2010


Hadronic dissipative effects on elliptic flow in ultrarelativistic heavy-ion collisions
journal, May 2006


Coupling dependence of jet quenching in hot strongly-coupled gauge theories
text, January 2012


Shear Viscosity of Strongly Coupled N = 4 Supersymmetric Yang-Mills Plasma
journal, August 2001


The theory and phenomenology of perturbative QCD based jet quenching
text, January 2010


Jet Structure in Heavy Ion Collisions
text, January 2015


Gluon energy loss in the gauge-string duality
journal, October 2008


Transverse Momentum Broadening of a Fast Quark in a $\N=4$ Yang Mills Plasma
text, January 2007


FastJet user manual: (for version 3.0.2)
journal, March 2012


Jet quenching in hot strongly coupled gauge theories simplified
journal, April 2011


A perturbative framework for jet quenching
journal, March 2013

  • Zapp, Korinna C.; Krauss, Frank; Wiedemann, Urs A.
  • Journal of High Energy Physics, Vol. 2013, Issue 3
  • DOI: 10.1007/JHEP03(2013)080

On the Evolution of Jet Energy and Opening Angle in Strongly Coupled Plasma
preprint, January 2015


Geometrical aspects of jet quenching in JEWEL
text, January 2013


Transverse momentum broadening of a fast quark in a Script N = 4 Yang-Mills plasma
journal, April 2007


Angular structure of jet quenching within a hybrid strong/weak coupling model
journal, March 2017

  • Casalderrey-Solana, Jorge; Gulhan, Doga Can; Milhano, José Guilherme
  • Journal of High Energy Physics, Vol. 2017, Issue 3
  • DOI: 10.1007/JHEP03(2017)135

Parton energy loss and momentum broadening at NLO in high temperature QCD plasmas
text, January 2015


Jet Physics in Heavy-Ion Collisions
journal, April 2013

  • Mehtar-Tani, Yacine; Milhano, JosÉ Guilherme; Tywoniuk, Konrad
  • International Journal of Modern Physics A, Vol. 28, Issue 11
  • DOI: 10.1142/S0217751X13400137

Some new results for ‘jet’ stopping in AdS/CFT
journal, November 2011


Holographic lessons for quark dynamics
journal, April 2012

  • Chernicoff, Mariano; García, J. Antonio; Güijosa, Alberto
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 39, Issue 5
  • DOI: 10.1088/0954-3899/39/5/054002

The anti-k_t jet clustering algorithm
text, January 2008


Energy loss of a heavy quark moving through Script N = 4 supersymmetric Yang-Mills plasma
journal, July 2006


Shooting string holography of jet quenching at RHIC and LHC
journal, November 2014


Jet quenching in high-energy heavy-ion collisions
journal, November 2015


Universality of the Shear Viscosity from Supergravity Duals
journal, August 2004


Inclusive cross section and correlations of fully reconstructed jets in Au + Au and collisions
journal, November 2009


Parton energy loss and momentum broadening at NLO in high temperature QCD plasmas
text, January 2015


The Large-N Limit of Superconformal Field Theories and Supergravity
journal, January 1999

  • Maldacena, Juan
  • International Journal of Theoretical Physics, Vol. 38, Issue 4, p. 1113-1133
  • DOI: 10.1023/A:1026654312961

Comparing energy loss and -broadening in perturbative QCD with strong coupling SYM theory
journal, October 2008


Anti–de Sitter/Conformal-Field-Theory Calculation of Screening in a Hot Wind
journal, May 2007


Interference effects in medium-induced gluon radiation
journal, August 2011

  • Casalderrey-Solana, J.; Iancu, E.
  • Journal of High Energy Physics, Vol. 2011, Issue 8
  • DOI: 10.1007/JHEP08(2011)015

Jet quenching in hot strongly coupled gauge theories simplified
text, January 2011


Predictions for boson-jet observables and fragmentation function ratios from a hybrid strong/weak coupling model for jet quenching
journal, March 2016

  • Casalderrey-Solana, Jorge; Gulhan, Doga Can; Milhano, José Guilherme
  • Journal of High Energy Physics, Vol. 2016, Issue 3
  • DOI: 10.1007/JHEP03(2016)053

Reconstructed Jet Results in p + p, d + Au and Cu + Cu collisions at 200 GeV from PHENIX
journal, August 2013


Heavy quark diffusion in strongly coupled N = 4 Yang-Mills theory
journal, October 2006


A hybrid strong/weak coupling approach to jet quenching
journal, October 2014

  • Casalderrey-Solana, Jorge; Gulhan, Doga Can; Milhano, José Guilherme
  • Journal of High Energy Physics, Vol. 2014, Issue 10
  • DOI: 10.1007/JHEP10(2014)019

A Brief Introduction to PYTHIA 8.1
text, January 2007


Matter in extremis: ultrarelativistic nuclear collisions at RHIC
journal, April 2005


Transverse Momentum Broadening of a Fast Quark in a $\N=4$ Yang Mills Plasma
text, January 2007


Jet physics in heavy-ion collisions
text, January 2013


Wake of a Quark Moving through a Strongly Coupled N = 4 Supersymmetric Yang-Mills Plasma
journal, October 2007


Shear Viscosity of Strongly Coupled [script N] = 4 Supersymmetric Yang-Mills Plasma
text, January 2001

  • Policastro, G.; Son, D. T.; Starinets, A. O.
  • The American Physical Society
  • DOI: 10.17877/de290r-3726

Conformal relativistic viscous hydrodynamics: Applications to RHIC results at s NN = 200 GeV
journal, September 2008


Wilson loops in heavy ion collisions and their calculation in AdS/CFT
journal, March 2007


Heavy Quark Diffusion in Strongly Coupled $\N=4$ Yang Mills
text, January 2006


Origins of the di-jet asymmetry in heavy ion collisions
preprint, January 2015


Jets in QCD media: from color coherence to decoherence
text, January 2011


JEWEL 2.0.0 - Directions for Use
text, January 2013


New picture of jet quenching dictated by color coherence
text, January 2012


Q-PYTHIA: a medium-modified implementation of final state radiation
text, January 2009


Momentum broadening in weakly coupled quark-gluon plasma (with a view to finding the quasiparticles within liquid quark-gluon plasma)
journal, May 2013

  • D’Eramo, Francesco; Lekaveckas, Mindaugas; Liu, Hong
  • Journal of High Energy Physics, Vol. 2013, Issue 5
  • DOI: 10.1007/JHEP05(2013)031

New picture of jet quenching dictated by color coherence
journal, October 2013


Local Monte Carlo Implementation of the Non-Abelian Landau-Pomeranchuk-Migdal Effect
journal, October 2009


Jet quenching pattern at LHC in PYQUEN model
journal, May 2011


Q-PYTHIA: a medium-modified implementation of final state radiation
journal, September 2009


The anti- k t jet clustering algorithm
journal, April 2008


Viscosity in Strongly Interacting Quantum Field Theories from Black Hole Physics
journal, March 2005


Introductory lectures on jet quenching in heavy ion collisions
text, January 2007


Antiangular Ordering of Gluon Radiation in QCD Media
text, January 2010


Elliptic flow in Pb+Pb collisions at s NN = 2.76 TeV: Hybrid model assessment of the first data
journal, July 2011


Q-PYTHIA: a medium-modified implementation of final state radiation
text, January 2009


Event-by-Event Anisotropic Flow in Heavy-ion Collisions from Combined Yang-Mills and Viscous Fluid Dynamics
journal, January 2013


Heavy quark energy loss far from equilibrium in a strongly coupled collision
journal, October 2013

  • Chesler, Paul M.; Lekaveckas, Mindaugas; Rajagopal, Krishna
  • Journal of High Energy Physics, Vol. 2013, Issue 10
  • DOI: 10.1007/JHEP10(2013)013

Jet quenching in hot strongly coupled gauge theories simplified
text, January 2011


Debye screening in strongly coupled N=4 supersymmetric Yang-Mills plasma
text, January 2007


Geometrical aspects of jet quenching in JEWEL
journal, July 2014


The iEBE-VISHNU code package for relativistic heavy-ion collisions
preprint, January 2014


Parton energy loss and momentum broadening at NLO in high temperature QCD plasmas
journal, November 2015

  • Ghiglieri, Jacopo; Teaney, Derek
  • International Journal of Modern Physics E, Vol. 24, Issue 11
  • DOI: 10.1142/S0218301315300131

Conformal collider physics: energy and charge correlations
journal, May 2008


Jet structure in heavy ion collisions
journal, November 2015

  • Blaizot, J. -P.; Mehtar-Tani, Y.
  • International Journal of Modern Physics E, Vol. 24, Issue 11
  • DOI: 10.1142/S021830131530012X

Heavy ions and string theory
text, January 2013


Gluon energy loss in the gauge-string duality
journal, October 2008


Radiative energy loss and p⊥-broadening of high energy partons in nuclei
journal, January 1997


The energy of a moving quark-antiquark pair in an Script N = 4 SYM plasma
journal, September 2006

  • Chernicoff, Mariano; García, J. Antonio; Güijosa, Alberto
  • Journal of High Energy Physics, Vol. 2006, Issue 09
  • DOI: 10.1088/1126-6708/2006/09/068

Origins of the di-jet asymmetry in heavy-ion collisions
journal, May 2016


Evolution of the Jet Opening Angle Distribution in Holographic Plasma
journal, May 2016


Viscosity Information from Relativistic Nuclear Collisions: How Perfect is the Fluid Observed at RHIC?
journal, October 2007


A brief introduction to PYTHIA 8.1
journal, June 2008

  • Sjöstrand, Torbjörn; Mrenna, Stephen; Skands, Peter
  • Computer Physics Communications, Vol. 178, Issue 11
  • DOI: 10.1016/j.cpc.2008.01.036

Holographic Jet Shapes and their Evolution in Strongly Coupled Plasma
journal, November 2017


New picture of jet quenching dictated by color coherence
journal, October 2013


Sonic Booms and Diffusion Wakes Generated by a Heavy Quark in Thermal Gauge-String Duality
journal, January 2008


Calculating the Jet Quenching Parameter
journal, November 2006


Momentum fluctuations of heavy quarks in the gauge-string duality
journal, February 2008


The theory and phenomenology of perturbative QCD based jet quenching
journal, January 2011


Antiangular Ordering of Gluon Radiation in QCD Media
journal, March 2011


Elliptic and Triangular Flow in Event-by-Event D = 3 + 1 Viscous Hydrodynamics
journal, January 2011


Geometrical aspects of jet quenching in JEWEL
text, January 2013


Jet quenching in high-energy heavy-ion collisions
text, January 2015


Debye screening in strongly coupled Script N = 4 supersymmetric Yang-Mills plasma
journal, August 2007


Coupling dependence of jet quenching in hot strongly-coupled gauge theories
journal, July 2012

  • Arnold, Peter; Szepietowski, Phillip; Vaman, Diana
  • Journal of High Energy Physics, Vol. 2012, Issue 7
  • DOI: 10.1007/jhep07(2012)024

Heavy quark energy loss far from equilibrium in a strongly coupled collision
text, January 2013


Early thermalization, hydrodynamics and energy loss in AdS/CFT
journal, October 2015

  • Chesler, Paul M.; van der Schee, Wilke
  • International Journal of Modern Physics E, Vol. 24, Issue 10
  • DOI: 10.1142/S0218301315300118

Radial and elliptic flow at RHIC: further predictions
journal, March 2001


JEWEL 2.0.0: directions for use
journal, February 2014


Heavy ions and string theory
journal, March 2014

  • DeWolfe, Oliver; Gubser, Steven S.; Rosen, Christopher
  • Progress in Particle and Nuclear Physics, Vol. 75
  • DOI: 10.1016/j.ppnp.2013.11.001

Jet evolution in the 𝒩 = 4 SYM plasma at strong coupling
journal, May 2008


The iEBE-VISHNU code package for relativistic heavy-ion collisions
journal, February 2016


Radial and elliptic flow at RHIC: further predictions
text, January 2001


Gauge/String Duality, Hot QCD and Heavy Ion Collisions
book, January 2014