Matrix pentagons by A.V. Belitsky

“…The non-singlet, or charged, pentagons are deduced from these by a limiting procedure.…”
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On factorization of multiparticle pentagons by A.V. Belitsky

“…In particular, we verify multiparticle factorization of charged pentagon transitions in terms of pentagons for single flux-tube excitations within the framework of refined operator product expansion. …”
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Multichannel conformal blocks for scattering amplitudes by A.V. Belitsky

“…By performing resummation of small fermion–antifermion pairs within the pentagon form factor program to scattering amplitudes in planar N=4 superYang–Mills theory, we construct multichannel conformal blocks within the flux-tube picture for N-sided NMHV polygons. …”
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