Momentum conservation and unitarity in parton showers and NLL resummation

Höche, Stefan; Reichelt, Daniel; Siegert, Frank

doi:10.1007/jhep01(2018)118

Title: Momentum conservation and unitarity in parton showers and NLL resummation

Abstract

We present a systematic study of differences between NLL resummation and parton showers. We first construct a Markovian Monte-Carlo algorithm for resummation of additive observables in electron-positron annihilation. Approximations intrinsic to the pure NLL result are then removed, in order to obtain a traditional, momentum and probability conserving parton shower based on the coherent branching formalism. The impact of each approximation is studied, and an overall comparison is made between the parton shower and pure NLL resummation. Differences compared to modern parton-shower algorithms formulated in terms of color dipoles are analyzed.

Authors:

^[1]; Reichelt, Daniel ^[2]; Siegert, Frank ^[2]

SLAC National Accelerator Lab., Menlo Park, CA (United States)
TU Dresden (Germany). Inst. of Nuclear and Particle Physics

Publication Date:: 2018-01-23

Research Org.:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Technische Universität Dresden (Germany)

Sponsoring Org.:: USDOE; German Academic Exchange Service (DAAD); German Research Foundation (DFG)

OSTI Identifier:: 1425581

Grant/Contract Number:: AC02-76SF00515; SI 2009/1-1

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: 1; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QCD phenomenology

Citation Formats


                    Höche, Stefan, Reichelt, Daniel, and Siegert, Frank. Momentum conservation and unitarity in parton showers and NLL resummation.  United States: N. p., 2018. 
Web.  doi:10.1007/jhep01(2018)118.

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                    Höche, Stefan, Reichelt, Daniel, & Siegert, Frank. Momentum conservation and unitarity in parton showers and NLL resummation.  United States.  https://doi.org/10.1007/jhep01(2018)118

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                    Höche, Stefan, Reichelt, Daniel, and Siegert, Frank. Tue .  
"Momentum conservation and unitarity in parton showers and NLL resummation".  United States.  https://doi.org/10.1007/jhep01(2018)118.  https://www.osti.gov/servlets/purl/1425581.

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@article{osti_1425581,

  title        = {Momentum conservation and unitarity in parton showers and NLL resummation},

  author       = {Höche, Stefan and Reichelt, Daniel and Siegert, Frank},

  abstractNote = {We present a systematic study of differences between NLL resummation and parton showers. We first construct a Markovian Monte-Carlo algorithm for resummation of additive observables in electron-positron annihilation. Approximations intrinsic to the pure NLL result are then removed, in order to obtain a traditional, momentum and probability conserving parton shower based on the coherent branching formalism. The impact of each approximation is studied, and an overall comparison is made between the parton shower and pure NLL resummation. Differences compared to modern parton-shower algorithms formulated in terms of color dipoles are analyzed.},

  doi          = {10.1007/jhep01(2018)118},

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

  number       = 1,

  volume       = 2018,

  place        = {United States},

  year         = {2018},

  month        = {1}

}

Copy to clipboard

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Works referencing / citing this record:

Non-global logarithms in jet and isolation cone cross sections
journal, August 2018

Balsiger, Marcel; Becher, Thomas; Shao, Ding Yu
Journal of High Energy Physics, Vol. 2018, Issue 8
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Jet Structure Studies in Small Systems
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Varga, Zoltán; Vértesi, Róbert; Barnaföldi, Gergely Gábor
Universe, Vol. 5, Issue 5
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Non-global logarithms in jet and isolation cone cross sections
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Resummed predictions for jet-resolution scales in multijet production in e+e− annihilation
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Baberuxki, Nick; Preuss, Christian T.; Reichelt, Daniel
Journal of High Energy Physics, Vol. 2020, Issue 4
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Jet Structure Studies in Small Systems
journal, May 2019

Varga, Zoltán; Vértesi, Róbert; Barnaföldi, Gergely Gábor
Universe, Vol. 5, Issue 5
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Fitting the Strong Coupling Constant with Soft-Drop Thrust
text, January 2019

Marzani, Simone; Reichelt, Daniel; Schumann, Steffen
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Title: Momentum conservation and unitarity in parton showers and NLL resummation

Abstract

Citation Formats

Sudakov resummation of multiparton QCD cross sections journal, November 2003

Small transverse momentum distributions in hard processes journal, August 1979

Back-to-back jets in QCD journal, December 1981

Comment of QCD exponentiation at large x journal, April 1991

Quark fragmentation within an identified jet journal, April 2010

Parton fragmentation within an identified jet at NNLL journal, May 2011

Resummation of non-global QCD observables journal, July 2001

Hard processes in quantum chromodynamics journal, February 1980

Principles of general final-state resummation and automated implementation journal, March 2005

Determination of the strong coupling constant using matched NNLO+NLLA predictions for hadronic event shapes in e + e − annihilations journal, August 2009

Event shape–energy flow correlations journal, July 2003

Summation of large corrections to short-distance hadronic cross sections journal, January 1987

Monte Carlo simulation of general hard processes with coherent QCD radiation journal, December 1988

Resummation of the QCD perturbative series for hard processes journal, November 1989

Asymptotic freedom in parton language journal, August 1977

A general algorithm for calculating jet cross sections in NLO QCD journal, February 1997

Resummation of large logarithms in e+e− event shape distributions journal, October 1993

Hadronisation effects in event-shape moments journal, March 2010

Hard scattering factorization from effective field theory journal, July 2002

Evolution of color exchange in QCD hard scattering journal, October 1998

A treatment of hard processes sensitive to the infrared structure of QCD journal, October 1980

Quantum Chromodynamics Test for Jets journal, December 1977

Subleading logarithms in QCD hard scattering journal, October 1996

Fooling around with the Sudakov veto algorithm journal, March 2013

Hard elastic scattering in QCD: Leading behavior journal, October 1989

A model for initial state parton showers journal, July 1985

The perturbative calculation of jet structure in e+e− annihilation journal, February 1981

The midpoint between dipole and parton showers journal, September 2015

Semi-numerical resummation of event shapes journal, January 2002

Simulation of QCD jets including soft gluon interference journal, May 1984

Soft-collinear factorization in effective field theory journal, February 2002

QCD coherent branching and semi-inclusive processes at large χ journal, February 1991

Introduction to Parton-Shower Event Generators conference, November 2015

Hard photon production and matrix-element parton-shower merging text, January 2010

Hadronization effects in event-shape moments text, January 2010

Quark Fragmentation within an Identified Jet text, January 2009

Fooling Around with the Sudakov Veto Algorithm text, January 2012

Introduction to parton-shower event generators preprint, January 2014

Triple collinear emissions in parton showers text, January 2017

Effects of Higher-Order Threshold Corrections in High-E_T Jet Production text, January 2000

Soft-Collinear Factorization in Effective Field Theory text, January 2001

Hard Scattering Factorization from Effective Field Theory text, January 2002

Threshold Resummation for Dijet Cross Sections text, January 1998

Evolution of Color Exchange in QCD Hard Scattering text, January 1998

Resummation of Threshold Corrections for Single-Particle Inclusive Cross Sections text, January 1998

Dijet Rapidity Gaps in Photoproduction from Perturbative QCD text, January 1999

Non-global logarithms in jet and isolation cone cross sections journal, August 2018

Jet Structure Studies in Small Systems journal, May 2019

Non-global logarithms in jet and isolation cone cross sections text, January 2018

Resummed predictions for jet-resolution scales in multijet production in e+e− annihilation journal, April 2020

Jet Structure Studies in Small Systems journal, May 2019

Fitting the Strong Coupling Constant with Soft-Drop Thrust text, January 2019

Sudakov resummation of multiparton QCD cross sections
journal, November 2003

Small transverse momentum distributions in hard processes
journal, August 1979

Back-to-back jets in QCD
journal, December 1981

Comment of QCD exponentiation at large x
journal, April 1991

Quark fragmentation within an identified jet
journal, April 2010

Parton fragmentation within an identified jet at NNLL
journal, May 2011

Resummation of non-global QCD observables
journal, July 2001

Hard processes in quantum chromodynamics
journal, February 1980

Principles of general final-state resummation and automated implementation
journal, March 2005

Determination of the strong coupling constant using matched NNLO+NLLA predictions for hadronic event shapes in e ⁺ e ⁻ annihilations
journal, August 2009

Event shape–energy flow correlations
journal, July 2003

Summation of large corrections to short-distance hadronic cross sections
journal, January 1987

Monte Carlo simulation of general hard processes with coherent QCD radiation
journal, December 1988

Resummation of the QCD perturbative series for hard processes
journal, November 1989

Asymptotic freedom in parton language
journal, August 1977

A general algorithm for calculating jet cross sections in NLO QCD
journal, February 1997

Resummation of large logarithms in e+e− event shape distributions
journal, October 1993

Hadronisation effects in event-shape moments
journal, March 2010

Hard scattering factorization from effective field theory
journal, July 2002

Evolution of color exchange in QCD hard scattering
journal, October 1998

A treatment of hard processes sensitive to the infrared structure of QCD
journal, October 1980

Quantum Chromodynamics Test for Jets
journal, December 1977

Subleading logarithms in QCD hard scattering
journal, October 1996

Fooling around with the Sudakov veto algorithm
journal, March 2013

Hard elastic scattering in QCD: Leading behavior
journal, October 1989

A model for initial state parton showers
journal, July 1985

The perturbative calculation of jet structure in e+e− annihilation
journal, February 1981

The midpoint between dipole and parton showers
journal, September 2015

Semi-numerical resummation of event shapes
journal, January 2002

Simulation of QCD jets including soft gluon interference
journal, May 1984

Soft-collinear factorization in effective field theory
journal, February 2002

QCD coherent branching and semi-inclusive processes at large χ
journal, February 1991

Introduction to Parton-Shower Event Generators
conference, November 2015

Hard photon production and matrix-element parton-shower merging
text, January 2010

Hadronization effects in event-shape moments
text, January 2010

Quark Fragmentation within an Identified Jet
text, January 2009

Fooling Around with the Sudakov Veto Algorithm
text, January 2012

Introduction to parton-shower event generators
preprint, January 2014

Triple collinear emissions in parton showers
text, January 2017

Effects of Higher-Order Threshold Corrections in High-E_T Jet Production
text, January 2000

Soft-Collinear Factorization in Effective Field Theory
text, January 2001

Hard Scattering Factorization from Effective Field Theory
text, January 2002

Threshold Resummation for Dijet Cross Sections
text, January 1998

Evolution of Color Exchange in QCD Hard Scattering
text, January 1998

Resummation of Threshold Corrections for Single-Particle Inclusive Cross Sections
text, January 1998

Dijet Rapidity Gaps in Photoproduction from Perturbative QCD
text, January 1999

Non-global logarithms in jet and isolation cone cross sections
journal, August 2018

Jet Structure Studies in Small Systems
journal, May 2019

Non-global logarithms in jet and isolation cone cross sections
text, January 2018

Resummed predictions for jet-resolution scales in multijet production in e+e− annihilation
journal, April 2020

Jet Structure Studies in Small Systems
journal, May 2019

Fitting the Strong Coupling Constant with Soft-Drop Thrust
text, January 2019