5 papers
Positivity with Long-Range Interactions
B. Bellazzini, J. Berman, G. Isabella +3
We introduce infrared finite, analytic, crossing symmetric, Regge behaved, and Lorentz invariant amplitudes , labeled by the experimental energy resolut…
(Super)Gravity from Positivity
Brando Bellazzini, Alex Pomarol, Marcello Romano +1
We investigate whether the effective theory for isolated, massive, and weakly interacting spin- particles is compatible with causality and unitarity-i.e., the positivity of sc…
Continuous-Spin Particles, On Shell
Brando Bellazzini, Stefano De Angelis, Marcello Romano
We study on-shell scattering amplitudes for continuous-spin particles (CSPs). Poincaré invariance, little-group covariance, analyticity, and on-shell factorisation (unita…
A novel strategy to prove chiral symmetry breaking in QCD-like theories
Luca Ciambriello, Roberto Contino, Andrea Luzio +2
We demonstrate that chiral symmetry breaking occurs in the confining regime of QCD-like theories with colors and flavors. Our proof is based on a novel strategy, called…
On the Proof of Chiral Symmetry Breaking from Anomaly Matching in QCD-like Theories
Luca Ciambriello, Roberto Contino, Andrea Luzio +2
We critically reconsider the argument based on 't Hooft anomaly matching that aims at proving chiral symmetry breaking in confining four-dimensional QCD-like theories with …