5 papers
A Surface Integrand for the Inverse KLT Kernel
Christoph Bartsch, Karol Kampf, Jiří Novotný +1
We propose a loop-level generalization of the inverse string theory Kawai-Lewellen-Tye (KLT) kernel: the planar inverse KLT integrand. The integrand is defined constructively via a…
Universality of Colored Scalars from the Stringy KLT Kernel
Christoph Bartsch, Karol Kampf, Jiří Novotný +1
A new perspective on the inverse string theory Kawai-Lewellen-Tye (KLT) kernel is provided which establishes the universality of scattering amplitudes in the bi-adjoint scalar (BAS…
Three-flavour order parameters of chiral symmetry in low-energy QCD
Marián Kolesár, Jiří Novotný
The current state of knowledge of the order parameters of the spontaneously broken chiral symmetry, the quark condensate and the pseudoscalar decay constant in the chiral limit, is…
A revision of radiative corrections to double-Dalitz decays
Pablo Sanchez-Puertas, K. Kampf, J. Novotný
The radiative corrections to double-Dalitz () decays are revisited and completed up to next-to-leading order in QED, finding mild differences wi…
Self-duality, helicity conservation and normal ordering in nonlinear QED
Jiří Novotný
We give a proof of the equivalence of the electric-magnetic duality on one side and helicity conservation of the tree level amplitudes on the other side within general models of no…