Natural selection rules: new positivity bounds for massive spinning particles
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2022)167
Abstract: Abstract We derive new effective field theory (EFT) positivity bounds on the elastic 2 → 2 scattering amplitudes of massive spinning particles from the standard UV properties of unitarity, causality, locality and Lorentz invariance. By… read more here.
Keywords: massive spinning; positivity; spinning particles; natural selection ... See more keywords
Positivity bounds for massive spin-1 and spin-2 fields
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep03(2019)182
Abstract: A bstractWe apply the recently developed positivity bounds for particles with spin, applied away from the forward limit, to the low energy effective theories of massive spin-1 and spin-2 theories. For spin-1 theories, we consider… read more here.
Keywords: spin spin; massive gravity; spin; massive spin ... See more keywords
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
Massive Galileon positivity bounds
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2017)072
Abstract: A bstractThe EFT coefficients in any gapped, scalar, Lorentz invariant field theory must satisfy positivity requirements if there is to exist a local, analytic Wilsonian UV completion. We apply these bounds to the tree level… read more here.
Keywords: massive galileon; completion; positivity; galileon positivity ... See more keywords