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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:
ORCiD logo [1];  [2];  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. TU Dresden (Germany). Inst. of Nuclear and Particle Physics
Publication Date:
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.
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
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.
@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}
}

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Cited by: 20 works
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Works referenced in this record:

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

  • Jain, Ambar; Procura, Massimiliano; Waalewijn, Wouter J.
  • Journal of High Energy Physics, Vol. 2011, Issue 5
  • DOI: 10.1007/JHEP05(2011)035

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

  • Höche, Stefan
  • 2014 Theoretical Advanced Study Institute in Elementary Particle Physics, Journeys Through the Precision Frontier: Amplitudes for Colliders
  • DOI: 10.1142/9789814678766_0005

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

  • Höche, S.; Schumann, S.; Siegert, F.
  • American Physical Society
  • DOI: 10.5167/uzh-34357

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


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
  • DOI: 10.1007/jhep08(2018)104

Jet Structure Studies in Small Systems
journal, May 2019

  • Varga, Zoltán; Vértesi, Róbert; Barnaföldi, Gergely Gábor
  • Universe, Vol. 5, Issue 5
  • DOI: 10.3390/universe5050132

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

  • Baberuxki, Nick; Preuss, Christian T.; Reichelt, Daniel
  • Journal of High Energy Physics, Vol. 2020, Issue 4
  • DOI: 10.1007/jhep04(2020)112

Jet Structure Studies in Small Systems
journal, May 2019

  • Varga, Zoltán; Vértesi, Róbert; Barnaföldi, Gergely Gábor
  • Universe, Vol. 5, Issue 5
  • DOI: 10.3390/universe5050132

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