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Finite remainders of the Konishi at two loops in ${\cal N}=4$ SYM
High Energy Physics - Theory · Submitted 2 Dec 2016
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim We have demonstrated the role of on shell external states for the FFs in the context of maximum transcendentality principle.
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The abstract, sentence by sentence
We present three point form factors (FF) in ${\cal N}=4$ Super Yang Mills theory for both the half-BPS and the Konishi operators at two loop level in the `t Hooft coupling using Feynman diagrammatic approach. We have chosen on shell final states consisting of $g \phi \phi$ and $\phi \lambda \lambda$, where $\phi,\lambda, g$ are scalar, Majorana fermion and gauge fields respectively. The computation is done both in the modified dimensional reduction as well as in the four dimensional helicity scheme. We have studied the universal structure of infrared (IR) singularities in these FFs using Catani's IR subtraction operators. Exploiting the factorisation property of the IR singularities and following BDS like ansatz for the IR sensitive terms in FFs, we determine the finite remainders of them. We find that the finite remainders of FFs of the half-BPS for both the choices of final states give not only identical results but also contain terms of uniform transcendentality of weight two and four at one and two loop levels, respectively. In the case of the Konishi operator, the finite remainders depend on the external states and do not exhibit uniform transcendentality. However, surprisingly, the leading transcendental terms for $g \phi \phi$ agree with that of the half-BPS. We have demonstrated the role of on shell external states for the FFs in the context of maximum transcendentality principle.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present three point form factors (FF) in ${\cal N}=4$ Super Yang Mills theory for both the half-BPS and the Konishi operators at two loop level in the `t Hooft coupling using Feynman diagrammatic approach. | contribution 1.00 | 0.96 | 0.08 | asserted 1.00 |
| s1 | We have chosen on shell final states consisting of $g \phi \phi$ and $\phi \lambda \lambda$, where $\phi,\lambda, g$ are scalar, Majorana fermion and gauge fields respectively. | method 0.94 | 0.89 | 0.02 | asserted 0.99 |
| s2 | The computation is done both in the modified dimensional reduction as well as in the four dimensional helicity scheme. | method 1.00 | 0.93 | 0.02 | asserted 1.00 |
| s3 | We have studied the universal structure of infrared (IR) singularities in these FFs using Catani's IR subtraction operators. | method 0.74 | 0.93 | 0.04 | asserted 1.00 |
| s4 | Exploiting the factorisation property of the IR singularities and following BDS like ansatz for the IR sensitive terms in FFs, we determine the finite remainders of them. | method 0.95 | 0.95 | 0.15 | asserted 1.00 |
| s5 | We find that the finite remainders of FFs of the half-BPS for both the choices of final states give not only identical results but also contain terms of uniform transcendentality of weight two and four at one and two loop levels, respectively. | result 1.00 | 0.97 | 0.26 | asserted 1.00 |
| s6 | In the case of the Konishi operator, the finite remainders depend on the external states and do not exhibit uniform transcendentality. | result 1.00 | 0.94 | 0.29 | asserted 1.00 |
| s7 | However, surprisingly, the leading transcendental terms for $g \phi \phi$ agree with that of the half-BPS. | result 0.99 | 0.93 | 0.18 | asserted 1.00 |
| s8 | We have demonstrated the role of on shell external states for the FFs in the context of maximum transcendentality principle. | interpretation 0.80 | 0.92 | 0.17 | asserted 1.00 |
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The paper
Original abstract
We present three point form factors (FF) in ${\cal N}=4$ Super Yang Mills theory for both the half-BPS and the Konishi operators at two loop level in the `t Hooft coupling using Feynman diagrammatic approach. We have chosen on shell final states consisting of $g \phi \phi$ and $\phi \lambda \lambda$, where $\phi,\lambda, g$ are scalar, Majorana fermion and gauge fields respectively. The computation is done both in the modified dimensional reduction as well as in the four dimensional helicity scheme. We have studied the universal structure of infrared (IR) singularities in these FFs using Catani's IR subtraction operators. Exploiting the factorisation property of the IR singularities and following BDS like ansatz for the IR sensitive terms in FFs, we determine the finite remainders of them. We find that the finite remainders of FFs of the half-BPS for both the choices of final states give not only identical results but also contain terms of uniform transcendentality of weight two and four at one and two loop levels, respectively. In the case of the Konishi operator, the finite remainders depend on the external states and do not exhibit uniform transcendentality. However, surprisingly, the leading transcendental terms for $g \phi \phi$ agree with that of the half-BPS. We have demonstrated the role of on shell external states for the FFs in the context of maximum transcendentality principle.
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References
How the literature uses it
25 arXiv papers cite this in 47 sentences
Papers citing it · 37 sentences without a confident label
Compares with it 4 papers
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Moreover, the results are exactly same as that of the half-BPS operator [ref] which is presented explicitly in terms of MPLs in appendix [ref].
The Curious Case of Leading Transcendentality: Three Point Form Factors · Principle of uniform transcendentality · 0.83
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The same $R^(2)_len-2;4$ function was also obtained in Konishi form factor in $N=4$ SYM [ref] .
Hidden Analytic Structure of Higgs Amplitudes and Maximal Transcendentality Principle · Analytic results and hidden structures · 0.85
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The same function was also obtained in the non-BPS Konishi form factor in $N=4$ SYM [ref] .
Hidden Analytic Relations for Two-Loop Higgs Amplitudes in QCD · Maximal Transcendentality Principle: Length-2 Cases · 0.82
Cites it as support 2 papers
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This provides further support of the maximal transcendentality principle introduced in study of anomalous dimensions in [ref] and then observed for the form factor of $tr(F^2)$ in [ref] and later also for other operators [ref] .
Two-Loop anomalous dimensions of QCD operators up to dimension-sixteen and Higgs EFT amplitudes · Introduction · 0.99
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Many evidences from form factor results at two loops [ref] support the intriguing maximal transcendentality principle (MTP) [ref] which conjectures that $𝒩=4$ SYM captures the maximally transcendental part of QCD.
Full-color three-loop three-point form factors in N=4 SYM · Introduction · 0.96
Cites it as background 4 papers
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In four-dimensional $𝒩=4$ super-Yang-Mills (SYM) theory scattering amplitudes [ref] , Wilson loops [ref] , and form factors [ref] often exhibit uniform transcendentality, a feature conjecturally tied to the underlying integrable structure of the theory [ref] .
Uniformly transcendental bases for protected two-point functions · Introduction · 0.80
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The two-loop three-point FF and their finite remainders for the half-BPS [ref] and the Konishi operator were recently calculated in [ref] .
Second order splitting functions and infrared safe cross sections in $\mathcal{N}=4$ SYM theory · Introduction · 0.89
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Uniform transcendentality has also been observed extensively in scattering amplitudes [ref] , light-like Wilson loops [ref] , and form factors of local operators [ref] .
Universal and Transcendental Structures in Protected ABJM Two-Point Functions · Introduction · 0.87
What it cites · 83 sentences without a confident label
Builds on 6 papers
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Later it was extended to cases with more than two external states [ref] .
Analytic two-loop form factors in N=4 SYM · Finite Remainders · 0.83
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Later it was extended to cases with more than two external states [ref] .
The last of the simple remainders · Finite Remainders · 0.83
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The generalisation of the results in [ref] and [ref] for all loop in $SU(N)$ gauge theory having $n_f$ light flavours in terms of cusp, collinear and soft anomalous dimensions was formulated by Becher and Neubert [ref] and independently by Gardi and Magnea [ref] .
Infrared singularities of scattering amplitudes in perturbative QCD · Introduction · 0.88
Uses the method or tool of 8 papers
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We used analog of KG that QCD form factors satisfy [ref] to determine the anomalous dimension $γ^ρ$.
Iteration of Planar Amplitudes in Maximally Supersymmetric Yang-Mills Theory at Three Loops and Beyond · UV divergences · 0.98
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Using the fortran routines of Gehrmann and Remiddi [ref] we have compared the finite remainder of the half-BPS operator presented in eq.
Numerical Evaluation of Two-Dimensional Harmonic Polylogarithms · Finite Remainders · 0.98
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Using Reduze [ref] , the loop momenta in various integrals can be shifted suitably in order to belong to these sets.
Reduze 2 - Distributed Feynman Integral Reduction · Methodology of calculation · 1.00
Compares with 2 papers
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(4.32) of [ref] ) and found excellent agreement within the numerical accuracy.
Analytic two-loop form factors in N=4 SYM · Finite Remainders · 1.00
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The anomalous dimension up to 2-loop are in agreement with the existing ones [ref] .
Three-Loop Four-Point Correlator in N=4 SYM · UV divergences · 0.99
Cites as background 47 papers
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Over the last few years, there are several results [ref] on n-point FFs for the Konishi operator in the weak coupling limit of $N=4$ SYM.
Two-Loop SL(2) Form Factors and Maximal Transcendentality · Introduction · 0.99
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Over the last few years, there are several results [ref] on n-point FFs for the Konishi operator in the weak coupling limit of $N=4$ SYM.
On-Shell Methods for the Two-Loop Dilatation Operator and Finite Remainders · Introduction · 0.99
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Over the last few years, there are several results [ref] on n-point FFs for the Konishi operator in the weak coupling limit of $N=4$ SYM.
The SU(2|3) dynamic two-loop form factors · Introduction · 0.99
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