Extension of positivity bounds to non-local theories: IR obstructions to Lorentz invariant UV completions
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep05(2019)216
Abstract: A bstractWe derive positivity bounds on low energy effective field theories which admit gapped, analytic, unitary, Lorentz invariant, and possibly non-local UV completions, by considering 2 to 2 scatterings of Jaffe fields whose Lehmann-Källén spectral… read more here.
Keywords: non local; invariant completions; extension positivity; lorentz invariant ... See more keywords
Relativistic gas: Lorentz-invariant distribution for the velocities.
Sign Up to like & getrecommendations! Published in 2022 at "Chaos"
DOI: 10.1063/5.0101935
Abstract: In 1911, Jüttner proposed the generalization, for a relativistic gas, of the Maxwell-Boltzmann distribution of velocities. Here, we want to discuss, among others, the Jüttner probability density function (PDF). Both the velocity space and, consequently,… read more here.
Keywords: gas; distribution velocities; lorentz invariant; relativistic gas ... See more keywords