0000000000319580

AUTHOR

Alexander V. Smirnov

0000-0002-7779-6735

showing 2 related works from this author

Evaluating Multiple Polylogarithm Values at Sixth Roots of Unity up to Weight Six

2017

We evaluate multiple polylogarithm values at sixth roots of unity up to weight six, i.e. of the form $G(a_1,\ldots,a_w;1)$ where the indices $a_i$ are equal to zero or a sixth root of unity, with $a_1\neq 1$. For $w\leq 6$, we present bases of the linear spaces generated by the real and imaginary parts of $G(a_1,\ldots,a_w;1)$ and present a table for expressing them as linear combinations of the elements of the bases.

High Energy Physics - TheoryNuclear and High Energy PhysicsPolylogarithmRoot of unityFOS: Physical sciencesFeynman graph01 natural sciencesCombinatoricsHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesFOS: Mathematicslcsh:Nuclear and particle physics. Atomic energy. RadioactivityNumber Theory (math.NT)0101 mathematicsLinear combinationMathematical PhysicsPhysicsMathematics - Number Theory010308 nuclear & particles physicsLinear space010102 general mathematicsZero (complex analysis)Mathematical Physics (math-ph)High Energy Physics - PhenomenologyHigh Energy Physics - Theory (hep-th)lcsh:QC770-798
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Analytic results for planar three-loop integrals for massive form factors

2016

We use the method of differential equations to analytically evaluate all planar three-loop Feynman integrals relevant for form factor calculations involving massive particles. Our results for ninety master integrals at general $q^2$ are expressed in terms of multiple polylogarithms, and results for fiftyone master integrals at the threshold $q^2=4m^2$ are expressed in terms of multiple polylogarithms of argument one, with indices equal to zero or to a sixth root of unity.

PhysicsNuclear and High Energy PhysicsParticle physics010308 nuclear & particles physicsRoot of unityDifferential equationFeynman integralPhysicsZero (complex analysis)Form factor (quantum field theory)FOS: Physical sciences01 natural sciencesLoop (topology)High Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)PlanarPerturbative QCD0103 physical sciencesddc:530Scattering Amplitudes010306 general physicsMathematical physicsJournal of High Energy Physics
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