3 papers
hep-th2025
The Rise of Linear Trajectories
Yu-tin Huang, Sara Ricossa, Francesco Riva +1
In this letter, we consider constraints on the low-energy spectrum of amplitudes with higher-spin exchange. Assuming unitarity, crossing symmetry, and super-convergent high energy…
hep-th2025
The EFT Bootstrap at Finite
Carl Beadle, Giulia Isabella, Davide Perrone +3
We explore the impact of loop effects on positivity in effective field theories emerging in the infrared from unitary and causal microscopic dynamics. Focusing on massless particle…
hep-th2024
Non-Forward UV/IR Relations
Carl Beadle, Giulia Isabella, Davide Perrone +3
We study bounds arising from the analyticity and unitarity of scattering amplitudes in the context of effective field theories with massless particles. We provide an approach that…