Results and techniques for higher order calculations within the gradient-flow formalism

doi:10.1007/JHEP06(2019)121

Title: Results and techniques for higher order calculations within the gradient-flow formalism

Abstract

We describe in detail the implementation of a systematic perturbative approach to observables in the QCD gradient-flow formalism. This includes a collection of all relevant Feynman rules of the five-dimensional field theory and the composite operators considered in this paper. Tools from standard perturbative calculations are used to obtain Green's functions at finite flow time $t$ at higher orders in perturbation theory. The three-loop results for the quark condensate at finite $t$ and the conversion factor for the "ringed" quark fields to the $$\overline{\mbox{MS}}$$ scheme are presented as applications. We also re-evaluate an earlier result for the three-loop gluon condensate, improving on its accuracy.

Authors:

Artz, Johannes ^[1];

^[1];

^[2];

^[3]

RWTH Aachen Univ., Aachen (Germany)
Illinois Inst. of Technology, Chicago, IL (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
Albert-Ludwigs-Univ., Freiburg (Germany)

Publication Date:: 2019-06-24

Research Org.:: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)

Sponsoring Org.:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

OSTI Identifier:: 1529333

Report Number(s):: [arXiv:1905.00882; FERMILAB-PUB-19-151-T; FR-PHENO-2019-003; IIT-CAPP-19-02; TTK-19-15]
[Journal ID: ISSN 1029-8479; 1732898]

Grant/Contract Number:: [AC02-07CH11359]

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: 2019; Journal Issue: 6]; Journal ID: ISSN 1029-8479

Publisher:: Springer Berlin

Country of Publication:: United States

Language:: English

Subject:: 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Lattice QCD; Perturbative QCD

Citation Formats


                    Artz, Johannes, Harlander, Robert V., Lange, Fabian, Neumann, Tobias, and Prausa, Mario. Results and techniques for higher order calculations within the gradient-flow formalism.  United States: N. p., 2019. 
        Web.  doi:10.1007/JHEP06(2019)121.

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                    Artz, Johannes, Harlander, Robert V., Lange, Fabian, Neumann, Tobias, & Prausa, Mario. Results and techniques for higher order calculations within the gradient-flow formalism.  United States.  doi:10.1007/JHEP06(2019)121.

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                    Artz, Johannes, Harlander, Robert V., Lange, Fabian, Neumann, Tobias, and Prausa, Mario. Mon .  
        "Results and techniques for higher order calculations within the gradient-flow formalism".  United States.  doi:10.1007/JHEP06(2019)121.  https://www.osti.gov/servlets/purl/1529333.

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@article{osti_1529333,

  title        = {Results and techniques for higher order calculations within the gradient-flow formalism},

  author       = {Artz, Johannes and Harlander, Robert V. and Lange, Fabian and Neumann, Tobias and Prausa, Mario},

  abstractNote = {We describe in detail the implementation of a systematic perturbative approach to observables in the QCD gradient-flow formalism. This includes a collection of all relevant Feynman rules of the five-dimensional field theory and the composite operators considered in this paper. Tools from standard perturbative calculations are used to obtain Green's functions at finite flow time $t$ at higher orders in perturbation theory. The three-loop results for the quark condensate at finite $t$ and the conversion factor for the "ringed" quark fields to the $\overline{\mbox{MS}}$ scheme are presented as applications. We also re-evaluate an earlier result for the three-loop gluon condensate, improving on its accuracy.},

  doi          = {10.1007/JHEP06(2019)121},

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

  number       = [6],

  volume       = [2019],

  place        = {United States},

  year         = {2019},

  month        = {6}

}

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DOI: 10.1007/JHEP06(2019)121

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Similar Records

Title: Results and techniques for higher order calculations within the gradient-flow formalism

Abstract

Citation Formats

Chiral symmetry and the Yang-Mills gradient flow journal, April 2013

The perturbative QCD gradient flow to three loops journal, June 2016

Automatic Feynman Graph Generation journal, April 1993

HypExp 2, Expanding hypergeometric functions about half-integer parameters journal, May 2008

Trivializing Maps, the Wilson Flow and the HMC Algorithm journal, November 2009

Abusing qgraf journal, April 2006

Finding linear dependencies in integration-by-parts equations: A Monte Carlo approach journal, May 2014

A p-adic algorithm for univariate partial fractions conference, January 1981

Version 3 of RunDec and CRunDec journal, March 2018

MPFR: A multiple-precision binary floating-point library with correct rounding journal, June 2007

Fast Solvers for Dense Linear Systems journal, October 2008

Scale Setting in Lattice QCD conference, April 2014

Future applications of the Yang-Mills gradient flow in lattice QCD conference, April 2014

Perturbative analysis of the gradient flow in non-abelian gauge theories journal, February 2011

A theorem on analytical calculability of 4-loop renormalization group functions journal, March 1981

Multiple polylogarithms, cyclotomy and modular complexes journal, January 1998

Algorithms for the symbolic integration of hyperlogarithms with applications to Feynman integrals journal, March 2015

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Scattering amplitudes over finite fields and multivariate functional reconstruction journal, December 2016

An Imbedded Family of Fully Symmetric Numerical Integration Rules journal, June 1983

High-precision scale setting in lattice QCD journal, September 2012

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Ti k Z-Feynman: Feynman diagrams with Ti k Z journal, January 2017

FIESTA 3: Cluster-parallelizable multiloop numerical calculations in physical regions journal, July 2014

On hyperlogarithms and Feynman integrals with divergences and many scales journal, March 2014

Infinite N phase transitions in continuum Wilson loop operators journal, March 2006

Chiral symmetry and the Yang-Mills gradient flow
journal, April 2013

The perturbative QCD gradient flow to three loops
journal, June 2016

Automatic Feynman Graph Generation
journal, April 1993

HypExp 2, Expanding hypergeometric functions about half-integer parameters
journal, May 2008

Trivializing Maps, the Wilson Flow and the HMC Algorithm
journal, November 2009

Abusing qgraf
journal, April 2006

Finding linear dependencies in integration-by-parts equations: A Monte Carlo approach
journal, May 2014

A p-adic algorithm for univariate partial fractions
conference, January 1981

Version 3 of RunDec and CRunDec
journal, March 2018

MPFR: A multiple-precision binary floating-point library with correct rounding
journal, June 2007

Fast Solvers for Dense Linear Systems
journal, October 2008

Scale Setting in Lattice QCD
conference, April 2014

Future applications of the Yang-Mills gradient flow in lattice QCD
conference, April 2014

Perturbative analysis of the gradient flow in non-abelian gauge theories
journal, February 2011

A theorem on analytical calculability of 4-loop renormalization group functions
journal, March 1981

Multiple polylogarithms, cyclotomy and modular complexes
journal, January 1998

Algorithms for the symbolic integration of hyperlogarithms with applications to Feynman integrals
journal, March 2015

Wilson flow and renormalization
conference, May 2015

Scattering amplitudes over finite fields and multivariate functional reconstruction
journal, December 2016

An Imbedded Family of Fully Symmetric Numerical Integration Rules
journal, June 1983

High-precision scale setting in lattice QCD
journal, September 2012

Quasi parton distributions and the gradient flow
journal, March 2017

Determining $\alpha_s$ by using the gradient flow in the quenched theory
conference, March 2017

Ti k Z-Feynman: Feynman diagrams with Ti k Z
journal, January 2017

FIESTA 3: Cluster-parallelizable multiloop numerical calculations in physical regions
journal, July 2014

On hyperlogarithms and Feynman integrals with divergences and many scales
journal, March 2014

Infinite N phase transitions in continuum Wilson loop operators
journal, March 2006