169 citations · 422 across the 8 of their papers we have counts for
9 papers
Focusing bounds for CFT correlators and the S-matrix
Thomas Hartman, Yikun Jiang, Francesco Sgarlata +1
The focusing theorem in General Relativity underlies causality, singularity theorems, entropy inequalities, and more. In AdS/CFT, we show that focusing in the bulk leads to a bound…
-Anomalous Interactions of the Holographic Dilaton
Csaba Csaki, Jay Hubisz, Ameen Ismail +2
We explore higher-derivative terms in the low-energy effective action for the dilaton, the Goldstone boson of spontaneously broken scale invariance. Focusing on the simplest hologr…
Gravitational Causality and the Self-Stress of Photons
Brando Bellazzini, Giulia Isabella, Matthew Lewandowski +1
We study causality in gravitational systems beyond the classical limit. Using on-shell methods, we consider the one-loop corrections from charged particles to the photon energy-mom…
Gravitational traces of broken gauge symmetries
Aleksandr Azatov, Daniele Barducci, Francesco Sgarlata
We investigate first order phase transitions arising from hidden sectors which are in thermal equilibrium with the Standard Model bath in the Early Universe. Focusing on two simpli…
Massive Higher Spins: Effective Theory and Consistency
Brando Bellazzini, Francesco Riva, Javi Serra +1
We construct the effective field theory for a single massive higher-spin particle in flat spacetime. Positivity bounds of the S-matrix force the cutoff of the theory to be well bel…
Anatomy of anomalies
Aleksandr Azatov, Debjyoti Bardhan, Diptimoy Ghosh +2
In recent times, one of the strongest hints of Physics Beyond the Standard Model (BSM) has been the anomaly in the ratios and measured in the charged current dec…
Beyond Amplitudes' Positivity and the Fate of Massive Gravity
Brando Bellazzini, Francesco Riva, Javi Serra +1
We constrain effective field theories by going beyond the familiar positivity bounds that follow from unitarity, analyticity, and crossing symmetry of the scattering amplitudes. As…
The Other Fermion Compositeness
Brando Bellazzini, Francesco Riva, Javi Serra +1
We discuss the only two viable realizations of fermion compositeness described by a calculable relativistic effective field theory consistent with unitarity, crossing symmetry and…
Integral Transform Approach to Generalized Tricomi Equations
Karen Yagdjian
We present some integral transform that allows to obtain solutions of the generalized Tricomi equation from solutions of a simpler equation. We used in [13,14],[41]-[46] the partic…