Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung

Mehtar-Tani, Yacine; Tywoniuk, Konrad

doi:10.1007/JHEP04(2017)125

Title: Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung

Abstract

Here, we argue that contemporary jet substructure techniques might facilitate a more direct measurement of hard medium-induced gluon bremsstrahlung in heavy-ion collisions, and focus specifically on the “soft drop declustering” procedure that singles out the two leading jet substructures. Assuming coherent jet energy loss, we find an enhancement of the distribution of the energy fractions shared by the two substructures at small subjet energy caused by hard medium-induced gluon radiation. Departures from this approximation are discussed, in particular, the effects of colour decoherence and the contamination of the grooming procedure by soft background. Finally, we propose a complementary observable, that is the ratio of the two-pronged probability in Pb-Pb to proton-proton collisions and discuss its sensitivity to various energy loss mechanisms.

Authors:

Mehtar-Tani, Yacine ^[1];

^[2]

Univ. of Washington, Seattle, WA (United States). Inst. of Nuclear Theory
European Organization for Nuclear Research (CERN), Geneva (Switzerland). Dept. of Theoretical Physics

Publication Date:: Fri Apr 21 00:00:00 EDT 2017

Research Org.:: Univ. of Washington, Seattle, WA (United States)

Sponsoring Org.:: USDOE; European Commission (EC)

OSTI Identifier:: 1368380

Grant/Contract Number:: FG02-00ER41132; 655279

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: 2017; Journal Issue: 4; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; Heavy Ion Phenomenology; Jets

Citation Formats


                    Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung.  United States: N. p., 2017. 
Web.  doi:10.1007/JHEP04(2017)125.

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                    Mehtar-Tani, Yacine, & Tywoniuk, Konrad. Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung.  United States.  https://doi.org/10.1007/JHEP04(2017)125

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                    Mehtar-Tani, Yacine, and Tywoniuk, Konrad. Fri .  
"Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung".  United States.  https://doi.org/10.1007/JHEP04(2017)125.  https://www.osti.gov/servlets/purl/1368380.

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@article{osti_1368380,

  title        = {Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung},

  author       = {Mehtar-Tani, Yacine and Tywoniuk, Konrad},

  abstractNote = {Here, we argue that contemporary jet substructure techniques might facilitate a more direct measurement of hard medium-induced gluon bremsstrahlung in heavy-ion collisions, and focus specifically on the “soft drop declustering” procedure that singles out the two leading jet substructures. Assuming coherent jet energy loss, we find an enhancement of the distribution of the energy fractions shared by the two substructures at small subjet energy caused by hard medium-induced gluon radiation. Departures from this approximation are discussed, in particular, the effects of colour decoherence and the contamination of the grooming procedure by soft background. Finally, we propose a complementary observable, that is the ratio of the two-pronged probability in Pb-Pb to proton-proton collisions and discuss its sensitivity to various energy loss mechanisms.},

  doi          = {10.1007/JHEP04(2017)125},

  journal      = {Journal of High Energy Physics (Online)},

  number       = 4,

  volume       = 2017,

  place        = {United States},

  year         = {Fri Apr 21 00:00:00 EDT 2017},

  month        = {Fri Apr 21 00:00:00 EDT 2017}

}

Copy to clipboard

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Works referenced in this record:

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Mehtar-Tani, Yacine; Salgado, Carlos A.; Tywoniuk, Konrad
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Works referencing / citing this record:

Study of jet-medium interactions using jet shape observables in heavy ion collisions at LHC energies with JEWEL
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Biswas, Rathijit; Choudhury, Subikash; Prasad, Sidharth Kumar
Journal of Physics G: Nuclear and Particle Physics, Vol. 46, Issue 9
DOI: 10.1088/1361-6471/ab2e69

Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower
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Physical Review C, Vol. 101, Issue 2
DOI: 10.1103/physrevc.101.024903

Measurement of the Splitting Function in pp and Pb-Pb Collisions at √sNN=5.02 TeV
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Sirunyan, Albert M.; Tumasyan, Armen; Adam, Wolfgang
RWTH Aachen University
DOI: 10.18154/rwth-2018-224132

Jet Substructure Studies with CMS Open Data
text, January 2017

Tripathee, Aashish; Xue, Wei; Larkoski, Andrew
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DOI: 10.48550/arxiv.1704.05842

Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower
text, January 2017

Cao, Shanshan; Majumder, Abhijit
arXiv
DOI: 10.48550/arxiv.1712.10055

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Title: Groomed jets in heavy-ion collisions: sensitivity to medium-induced bremsstrahlung

Abstract

Citation Formats

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

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Jet Physics in Heavy-Ion Collisions journal, April 2013

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Jet substructure with analytical methods journal, November 2013

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Two-gluon emission and interference in a thin QCD medium: insights into jet formation journal, November 2016

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Measurements of the Nuclear Modification Factor for Jets in Pb + Pb Collisions at s NN = 2.76 TeV with the ATLAS Detector journal, February 2015

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Study of jet-medium interactions using jet shape observables in heavy ion collisions at LHC energies with JEWEL journal, August 2019

Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower journal, February 2020

Measurement of the Splitting Function in pp and Pb-Pb Collisions at √sNN=5.02 TeV text, January 2018

Jet Substructure Studies with CMS Open Data text, January 2017

Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower text, January 2017

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

Reaction operator approach to non-abelian energy loss
journal, January 2001

QCD and jets at hadron colliders
journal, July 2016

First Results from Pb+Pb Collisions at the LHC
journal, November 2012

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

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

Medium Modification of Jet Shapes and Jet Multiplicities
journal, July 2004

Radiative energy loss of high-energy quarks in finite-size nuclear matter and quark-gluon plasma
journal, April 1997

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

The radiation pattern of a QCD antenna in a dilute medium
journal, April 2012

Probing transverse momentum broadening in heavy ion collisions
journal, December 2016

On jet substructure methods for signal jets
journal, August 2015

Non-Abelian Energy Loss at Finite Opacity
journal, December 2000

A perturbative framework for jet quenching
journal, March 2013

A theory of jet shapes and cross sections: from hadrons to nuclei
journal, November 2008

The LPM effect in sequential bremsstrahlung 2: factorization
journal, September 2016

Picturing perturbative parton cascades in QCD matter
journal, January 2015

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

Jet Physics in Heavy-Ion Collisions
journal, April 2013

Jet structure in heavy ion collisions
journal, November 2015

Jet trimming
journal, February 2010

Angular distribution of medium-induced QCD cascades
journal, August 2015

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

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

Medium-induced gluon branching
journal, January 2013

Calculating quenching weights
journal, July 2003

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

Probabilistic picture for medium-induced jet evolution
journal, June 2014

Soft drop
journal, May 2014

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

Jet substructure at the Tevatron and LHC: new results, new tools, new benchmarks
journal, May 2012

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

Medium Modification of $γ$ Jets in High-Energy Heavy-Ion Collisions
journal, August 2013

Towards jetography
journal, May 2010

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

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

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

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

Deciphering the properties of the medium produced in heavy ion collisions at RHIC by a pQCD analysis of quenched large p _⊥ π ⁰ spectra
journal, September 2006

Jet calculus: A simple algorithm for resolving QCD jets
journal, September 1979

Quenching of hadron spectra in media
journal, September 2001

Towards the understanding of jet shapes and cross sections in heavy ion collisions using soft-collinear effective theory
journal, May 2016

Medium-evolved fragmentation functions
journal, February 2008

Jet substructure with analytical methods
journal, November 2013

The radiation pattern of a QCD antenna in a dense medium
journal, October 2012

Two-gluon emission and interference in a thin QCD medium: insights into jet formation
journal, November 2016

Towards an understanding of jet substructure
journal, September 2013

Measurements of the Nuclear Modification Factor for Jets in $Pb + Pb$ Collisions at $\sqrt{s_{NN}} = 2.76 TeV$ with the ATLAS Detector
journal, February 2015

Jet shapes in opaque media
journal, April 2007

Better jet clustering algorithms
journal, August 1997

Study of jet-medium interactions using jet shape observables in heavy ion collisions at LHC energies with JEWEL
journal, August 2019

Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower
journal, February 2020

Measurement of the Splitting Function in pp and Pb-Pb Collisions at √sNN=5.02 TeV
text, January 2018

Jet Substructure Studies with CMS Open Data
text, January 2017

Nuclear modification of leading hadrons and jets within a virtuality ordered parton shower
text, January 2017