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80 papers · 1 filter
On the photon mass generation in Rarita-Schwinger QED
M. Ghasemkhani, G. Soleimani, A. Soto +1
This work examines the dynamical mass generation for the photon in Rarita-Schwinger QED. We focus our attention on the cases of dimensional spacetime. In these frameworks,…
Renormalisation of IR divergences and holography in de Sitter
Adam Bzowski, Paul McFadden, Kostas Skenderis
We formulate a renormalisation procedure for IR divergences of tree-level in-in late-time de Sitter correlators. These divergences are due to the infinite volume of spacetime and a…
Shift operators from the simplex representation in momentum-space CFT
Francesca Caloro, Paul McFadden
We derive parametric integral representations for the general -point function of scalar operators in momentum-space conformal field theory. Recently, this was shown to be expres…
A handbook of holographic 4-point functions
Adam Bzowski, Paul McFadden, Kostas Skenderis
We present a comprehensive discussion of tree-level holographic -point functions of scalar operators in momentum space. We show that each individual Witten diagram satisfies the…
Induced non-Abelian Chern-Simons effective action in very special relativity
Z. Haghgouyan, M. Ghasemkhani, R. Bufalo +1
In this paper, we study the one-loop induced effective action for a non-abelian gauge field in the very special relativity (VSR) framework in a -dimensional spacetime. We sh…
PT symmetric fermionic field theories with axions: Renormalization and dynamical mass generation
N. E. Mavromatos, Sarben Sarkar, A. Soto
We consider the renormalisation properties of non-Hermitian Yukawa theories involving a pseudoscalar (axion) field at or near dimensions. The non-Hermiticity is \cPT-symmetric…