Vacuumlike Jet Fragmentation in a Dense QCD Medium

Caucal, P.; Iancu, E.; Mueller, A. H.; Soyez, G.

doi:10.1103/PhysRevLett.120.232001

Title: Vacuumlike Jet Fragmentation in a Dense QCD Medium

Abstract

We study the fragmentation of a jet propagating in a dense quark-gluon plasma. Using a leading, double-logarithmic approximation in perturbative QCD, we compute for the first time the effects of the medium on multiple vacuumlike emissions. We show that, due to the scatterings off the plasma, the in-medium parton showers differ from the vacuum ones in two crucial aspects: their phase-space is reduced and the first emission outside the medium can violate angular ordering. As a consequence, we compute the jet fragmentation function and find results in qualitative agreement with LHC measurements.

Authors:: Caucal, P.; Iancu, E.; Mueller, A. H.; Soyez, G.

Publication Date:: Wed Jun 06 00:00:00 EDT 2018

Research Org.:: Columbia Univ., New York, NY (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1441034

Alternate Identifier(s):: OSTI ID: 1498988

Grant/Contract Number:: FG02-92ER40699

Resource Type:: Published Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Name: Physical Review Letters Journal Volume: 120 Journal Issue: 23; Journal ID: ISSN 0031-9007

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats


                    Caucal, P., Iancu, E., Mueller, A. H., and Soyez, G. Vacuumlike Jet Fragmentation in a Dense QCD Medium.  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevLett.120.232001.

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                    Caucal, P., Iancu, E., Mueller, A. H., & Soyez, G. Vacuumlike Jet Fragmentation in a Dense QCD Medium.  United States.  https://doi.org/10.1103/PhysRevLett.120.232001

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                    Caucal, P., Iancu, E., Mueller, A. H., and Soyez, G. Wed .  
"Vacuumlike Jet Fragmentation in a Dense QCD Medium".  United States.  https://doi.org/10.1103/PhysRevLett.120.232001.

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@article{osti_1441034,

  title        = {Vacuumlike Jet Fragmentation in a Dense QCD Medium},

  author       = {Caucal, P. and Iancu, E. and Mueller, A. H. and Soyez, G.},

  abstractNote = {We study the fragmentation of a jet propagating in a dense quark-gluon plasma. Using a leading, double-logarithmic approximation in perturbative QCD, we compute for the first time the effects of the medium on multiple vacuumlike emissions. We show that, due to the scatterings off the plasma, the in-medium parton showers differ from the vacuum ones in two crucial aspects: their phase-space is reduced and the first emission outside the medium can violate angular ordering. As a consequence, we compute the jet fragmentation function and find results in qualitative agreement with LHC measurements.},

  doi          = {10.1103/PhysRevLett.120.232001},

  journal      = {Physical Review Letters},

  number       = 23,

  volume       = 120,

  place        = {United States},

  year         = {Wed Jun 06 00:00:00 EDT 2018},

  month        = {Wed Jun 06 00:00:00 EDT 2018}

}

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Cited by: 57 works

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Figures / Tables:

Figure 1: Schematic representation of the phase space available for VLEs, including an example of a cascade with “1” the last emission inside the medium and “2” the first emission outside.

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Works referenced in this record:

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Figures / Tables found in this record:

Figure 1 (p. 2)

Figure 2 (p. 4)

Figure 3 (p. 5)

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Title: Vacuumlike Jet Fragmentation in a Dense QCD Medium

Abstract

Citation Formats

Figures / Tables:

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

Radiative energy loss of high energy quarks and gluons in a finite-volume quark-gluon plasma journal, January 1997

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

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

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

A perturbative framework for jet quenching journal, March 2013

Jet (de)coherence in Pb–Pb collisions at the LHC journal, May 2015

Measurement of jet fragmentation in PbPb and p p collisions at s NN = 2.76 TeV journal, August 2014

Angular Structure of the In-Medium QCD Cascade journal, June 2015

Fully quantum treatment of the Landau-Pomeranchik-Migdal effect in QED and QCD journal, June 1996

Gluon radiation off hard quarks in a nuclear environment: opacity expansion journal, November 2000

Picturing perturbative parton cascades in QCD matter journal, January 2015

MARTINI: An event generator for relativistic heavy-ion collisions journal, November 2009

Hard collinear gluon radiation and multiple scattering in a medium journal, January 2012

Medium-Induced QCD Cascade: Democratic Branching and Wave Turbulence journal, July 2013

Multiple parton scattering in nuclei: parton energy loss journal, December 2001

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

Incorporating space-time within medium-modified jet-event generators journal, July 2013

Thermalization of mini-jets in a quark-gluon plasma journal, October 2015

Medium-induced gluon branching journal, January 2013

Erratum to: A hybrid strong/weak coupling approach to jet quenching journal, September 2015

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

Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at s NN = 2.76 TeV with the ATLAS detector journal, December 2014

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

Radiative energy loss of high energy quarks and gluons in a finite-volume quark-gluon plasma
journal, January 1997

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

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

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

A perturbative framework for jet quenching
journal, March 2013

Jet (de)coherence in Pb–Pb collisions at the LHC
journal, May 2015

Measurement of jet fragmentation in PbPb and $p p$ collisions at $\sqrt{s_{NN}} = 2.76$ TeV
journal, August 2014

Angular Structure of the In-Medium QCD Cascade
journal, June 2015

Fully quantum treatment of the Landau-Pomeranchik-Migdal effect in QED and QCD
journal, June 1996

Gluon radiation off hard quarks in a nuclear environment: opacity expansion
journal, November 2000

Picturing perturbative parton cascades in QCD matter
journal, January 2015

MARTINI: An event generator for relativistic heavy-ion collisions
journal, November 2009

Hard collinear gluon radiation and multiple scattering in a medium
journal, January 2012

Medium-Induced QCD Cascade: Democratic Branching and Wave Turbulence
journal, July 2013

Multiple parton scattering in nuclei: parton energy loss
journal, December 2001

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

Incorporating space-time within medium-modified jet-event generators
journal, July 2013

Thermalization of mini-jets in a quark-gluon plasma
journal, October 2015

Medium-induced gluon branching
journal, January 2013

Erratum to: A hybrid strong/weak coupling approach to jet quenching
journal, September 2015

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

Measurement of inclusive jet charged-particle fragmentation functions in Pb+Pb collisions at $\sqrt{s_{NN}} = 2.76 TeV$ with the ATLAS detector
journal, December 2014