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Title: The four-loop six-gluon NMHV ratio function

Journal Article · · Journal of High Energy Physics (Online)
 [1];  [2];  [3]
  1. SLAC National Accelerator Lab., Stanford, CA (United States); California Inst. of Technology (CalTech), Pasadena, CA (United States)
  2. Perimeter Inst. for Theoretical Physics, Waterloo, ON (Canada)
  3. SLAC National Accelerator Lab., Stanford, CA (United States)

We use the hexagon function bootstrap to compute the ratio function which characterizes the next-to-maximally-helicity-violating (NMHV) six-point amplitude in planar N = 4 super-Yang-Mills theory at four loops. A powerful constraint comes from dual superconformal invariance, in the form of a Q- differential equation, which heavily constrains the first derivatives of the transcendental functions entering the ratio function. At four loops, it leaves only a 34-parameter space of functions. Constraints from the collinear limits, and from the multi-Regge limit at the leading-logarithmic (LL) and next-to-leading-logarithmic (NLL) order, suffice to fix these parameters and obtain a unique result. We test the result against multi- Regge predictions at NNLL and N3LL, and against predictions from the operator product expansion involving one and two flux-tube excitations; all cross-checks are satisfied. We also study the analytical and numerical behavior of the parity-even and parity-odd parts on various lines and surfaces traversing the three-dimensional space of cross ratios. As part of this program, we characterize all irreducible hexagon functions through weight eight in terms of their coproduct. Furthermore, we provide representations of the ratio function in particular kinematic regions in terms of multiple polylogarithms.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
DOE Contract Number:
AC02-76SF00515
OSTI ID:
1222459
Report Number(s):
SLAC-PUB-16352; arXiv:1509.08127
Journal Information:
Journal of High Energy Physics (Online), Vol. 2016, Issue 1; ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English

References (98)

Supersymmetric Yang-Mills theories journal March 1977
Light-cone superspace and the ultraviolet finiteness of the N=4 model journal March 1983
The ultra-violet finiteness of the N=4 Yang-Mills theory journal April 1983
Miraculous ultraviolet cancellations in supersymmetry made manifest journal April 1984
Review of AdS/CFT Integrability: An Overview journal October 2011
Magic identities for conformal four-point integrals journal January 2007
Gluon scattering amplitudes at strong coupling journal June 2007
Dual superconformal symmetry of scattering amplitudes in super-Yang–Mills theory journal March 2010
Conformal properties of four-gluon planar amplitudes and Wilson loops journal May 2008
MHV amplitudes in super-Yang–Mills and Wilson Loops journal May 2008
On planar gluon amplitudes/Wilson loops duality journal May 2008
Conformal Ward identities for Wilson loops and a test of the duality with gluon amplitudes journal February 2010
Scattering amplitudes, Wilson loops and the string/gauge theory correspondence journal November 2008
Hexagon Wilson loop = six-gluon MHV amplitude journal July 2009
A current algebra for some gauge theory amplitudes journal November 1988
Non-MHV Tree Amplitudes in Gauge Theory journal July 2004
Generating tree amplitudes in 𝒩 = 4 SYM and 𝒩 = 8 SG journal September 2008
What is the simplest quantum field theory? journal September 2010
Eliminating spurious poles from gauge-theoretic amplitudes journal May 2013
Dual superconformal invariance, momentum twistors and Grassmannians journal November 2009
The all-loop integrand for scattering amplitudes in planar $ \mathcal{N} = 4 $ SYM journal January 2011
The soft-collinear bootstrap: $ \mathcal{N} = {4} $ Yang-Mills amplitudes at six- and seven-loops journal March 2012
From d logs to dilogs; the super Yang-Mills MHV amplitude revisited journal January 2014
The Amplituhedron journal October 2014
Into the amplituhedron journal December 2014
Bootstrapping the three-loop hexagon journal November 2011
Analytic result for the two-loop six-point NMHV amplitude in $ \mathcal{N} = {4} $ super Yang-Mills theory journal January 2012
Hexagon functions and the three-loop remainder function journal December 2013
The four-loop remainder function and multi-Regge behavior at NNLLA in planar $ \mathcal{N} $ = 4 super-Yang-Mills theory journal June 2014
Bootstrapping six-gluon scattering in planar N=4 super-Yang-Mills theory conference August 2014
Bootstrapping an NMHV amplitude through three loops journal October 2014
Classical Polylogarithms for Amplitudes and Wilson Loops journal October 2010
An analytic result for the two-loop hexagon Wilson loop in $ \mathcal{N} = 4 $ SYM journal March 2010
The two-loop hexagon Wilson loop in $ \mathcal{N} = 4 $ SYM journal May 2010
Multiple zeta values and periods of moduli spaces $\overline{\mathfrak{M}}_{0,n}$ journal January 2009
Motivic amplitudes and cluster coordinates journal January 2014
From polygons and symbols to polylogarithmic functions journal October 2012
Hopf algebras, coproducts and symbols: an application to Higgs boson amplitudes journal August 2012
Galois symmetries of fundamental groupoids and noncommutative geometry journal June 2005
Pulling the straps of polygons journal December 2011
Jumpstarting the all-loop S-matrix of planar $ \mathcal{N} = {4} $ super Yang-Mills journal July 2012
N=4 supersymmetric Yang–Mills scattering amplitudes at high energies: the Regge cut contribution journal December 2009
MHV amplitude for <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mn>3</mml:mn><mml:mo>→</mml:mo><mml:mn>3</mml:mn></mml:math> gluon scattering in Regge limit journal November 2011
BFKL equation for the adjoint representation of the gauge group in the next-to-leading approximation at <mml:math altimg="si1.gif" overflow="scroll" xmlns:xocs="http://www.elsevier.com/xml/xocs/dtd" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.elsevier.com/xml/ja/dtd" xmlns:ja="http://www.elsevier.com/xml/ja/dtd" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:tb="http://www.elsevier.com/xml/common/table/dtd" xmlns:sb="http://www.elsevier.com/xml/common/struct-bib/dtd" xmlns:ce="http://www.elsevier.com/xml/common/dtd" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:cals="http://www.elsevier.com/xml/common/cals/dtd"><mml:mi>N</mml:mi><mml:mo>=</mml:mo><mml:mn>4</mml:mn></mml:math> SUSY journal January 2012
Single-valued harmonic polylogarithms and the multi-Regge limit journal October 2012
When does the gluon reggeize? journal May 2015
Adjoint BFKL at finite coupling: a short-cut from the collinear limit journal January 2015
The Multi-Regge limit of NMHV amplitudes in N=4 SYM theory journal January 2013
Spacetime and Flux Tube S -Matrices at Finite Coupling for N = 4 Supersymmetric Yang-Mills Theory journal August 2013
Space-time S-matrix and flux tube S-matrix II. Extracting and matching data journal January 2014
Space-time S-matrix and flux-tube S-matrix III. The two-particle contributions journal August 2014
Space-time S-matrix and flux-tube S-matrix IV. Gluons and fusion journal September 2014
Quantum mechanics of null polygonal Wilson loops journal May 2014
Nonsinglet pentagons and NMHV amplitudes journal July 2015
Fermionic pentagons and NMHV hexagon journal May 2015
Generalized unitarity for super-amplitudes journal April 2013
One-loop n-point gauge theory amplitudes, unitarity and collinear limits journal August 1994
Harmonic Polylogarithms journal February 2000
Polylogarithmes multiples uniformes en une variable journal April 2004
The complete planar S-matrix of $ \mathcal{N} = 4 $ SYM as a Wilson loop in twistor space journal December 2010
Notes on the scattering amplitude — Wilson loop duality journal July 2011
Exciting the GKP string at any coupling journal April 2012
Factorization in one-loop gauge theory journal August 1995
Introduction to the GiNaC Framework for Symbolic Computation within the C++ Programming Language journal January 2002
Numerical evaluation of multiple polylogarithms journal May 2005
Harmonic sums and polylogarithms generated by cyclotomic polynomials journal October 2011
Two-loop master integrals for jets: the planar topologies journal May 2001
Hopf algebras, coproducts and symbols: an application to Higgs boson amplitudes text January 2012
Motivic amplitudes and cluster coordinates text January 2014
Single-valued harmonic polylogarithms and the multi-Regge limit text January 2012
Conformal Ward identities for Wilson loops and a test of the duality with gluon amplitudes text January 2007
Hexagon Wilson loop = six-gluon MHV amplitude text January 2008
Generating Tree Amplitudes in N=4 SYM and N=8 SG text January 2008
N=4 supersymmetric Yang Mills scattering amplitudes at high energies: the Regge cut contribution text January 2008
What is the Simplest Quantum Field Theory? text January 2008
Eliminating spurious poles from gauge-theoretic amplitudes preprint January 2009
An Operator Product Expansion for Polygonal null Wilson Loops text January 2010
Classical Polylogarithms for Amplitudes and Wilson Loops text January 2010
Exciting the GKP string at any coupling text January 2010
Review of AdS/CFT Integrability: An Overview text January 2010
Pulling the straps of polygons text January 2011
Bootstrapping the three-loop hexagon text January 2011
From polygons and symbols to polylogarithmic functions text January 2011
Analytic result for the two-loop six-point NMHV amplitude in N=4 super Yang-Mills theory text January 2011
Hopf algebras, coproducts and symbols: an application to Higgs boson amplitudes text January 2012
The Multi-Regge limit of NMHV Amplitudes in N=4 SYM Theory text January 2012
Space-time S-matrix and Flux tube S-matrix II. Extracting and Matching Data text January 2013
Quantum mechanics of null polygonal Wilson loops text January 2014
The four-loop remainder function and multi-Regge behavior at NNLLA in planar N=4 super-Yang-Mills theory text January 2014
Wilson loop OPE, analytic continuation and multi-Regge limit text January 2014
Nonsinglet pentagons and NMHV amplitudes text January 2014
Adjoint BFKL at finite coupling: a short-cut from the collinear limit text January 2014
Bootstrapping six-gluon scattering in planar ${\cal N}=4$ super-Yang-Mills theory preprint January 2014
Bootstrapping an NMHV amplitude through three loops text January 2014
Fermionic pentagons and NMHV hexagon text January 2014
Numerical evaluation of multiple polylogarithms text January 2004
One-Loop n-Point Gauge Theory Amplitudes, Unitarity and Collinear Limits text January 1994
Harmonic Polylogarithms text January 1999

Cited By (41)

Cluster algebras and the subalgebra constructibility of the seven-particle remainder function journal January 2019
Analytic helicity amplitudes for two-loop five-gluon scattering: the single-minus case journal January 2019
Cluster adjacency beyond MHV journal March 2019
The Sklyanin bracket and cluster adjacency at all multiplicity journal March 2019
The two-loop symbol of all multi-Regge regions journal May 2016
Elliptic polylogarithms and Feynman parameter integrals journal May 2019
Yangian invariants and cluster adjacency in $$ \mathcal{N} $$ = 4 Yang-Mills journal October 2019
Subleading power factorization with radiative functions journal November 2019
Systematics of the multi-Regge three-loop symbol text January 2017
The seven-gluon amplitude in multi-Regge kinematics beyond leading logarithmic accuracy text January 2018
The analytic structure of non-global logarithms: convergence of the dressed gluon expansion journal November 2016
The two-loop symbol of all multi-Regge regions text January 2016
Heptagons from the Steinmann Cluster Bootstrap text January 2017
The seven-gluon amplitude in multi-Regge kinematics beyond leading logarithmic accuracy text January 2018
Six-point remainder function in multi-Regge-kinematics: an efficient approach in momentum space text January 2016
Analytic form of the two-loop planar five-gluon all-plus-helicity amplitude in QCD text January 2016
Analytic Result for a Two-Loop Five-Particle Amplitude text January 2019
All-order amplitudes at any multiplicity in the multi-Regge limit text January 2020
Six-point remainder function in multi-Regge-kinematics: an efficient approach in momentum space journal May 2016
Systematics of the Multi-Regge Three-Loop Symbol text January 2016
Cluster adjacency and the four-loop NMHV heptagon text January 2018
All-order amplitudes at any multiplicity in the multi-Regge limit text January 2019
The double pentaladder integral to all ordersC text January 2018
All-Order Amplitudes at any Multiplicity in the Multi-Regge Limit text January 2020
Analytic helicity amplitudes for two-loop five-gluon scattering: the single-minus case text January 2019
Six-point remainder function in multi-Regge-kinematics: an efficient approach in momentum space preprint January 2015
The Two-Loop Symbol of all Multi-Regge Regions text January 2015
Gravity On-shell Diagrams text January 2016
Systematics of the Multi-Regge Three-Loop Symbol text January 2016
Bootstrapping a Five-Loop Amplitude Using Steinmann Relations text January 2016
The Analytic Structure of Non-Global Logarithms: Convergence of the Dressed Gluon Expansion text January 2016
Heptagons from the Steinmann Cluster Bootstrap text January 2016
Boundaries of Amplituhedra and NMHV Symbol Alphabets at Two Loops text January 2017
Rationalizing Loop Integration text January 2018
The Double Pentaladder Integral to All Orders text January 2018
Cluster adjacency beyond MHV text January 2018
Cluster Algebras and the Subalgebra Constructibility of the Seven-Particle Remainder Function text January 2018
Analytic helicity amplitudes for two-loop five-gluon scattering: the single-minus case text January 2018
Analytic result for a two-loop five-particle amplitude text January 2018
Elliptic polylogarithms and Feynman parameter integrals text January 2019
The Sklyanin Bracket and Cluster Adjacency at All Multiplicity text January 2019

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