Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Kelian Häring"'
Autor:
Kelian Häring, Alexander Zhiboedov
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-56 (2024)
Abstract We explore the space of meromorphic amplitudes with extra constraints coming from the shape of the leading Regge trajectory. This information comes in two guises: it bounds the maximal spin of exchanged particles of a given mass; it leads to
Externí odkaz:
https://doaj.org/article/b15aed240e3646ef89cc2fc58bc4d2ac
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 10, Pp 1-95 (2024)
Abstract We study 2-to-2 scattering amplitudes of massless spin one particles in d = 4 space-time dimensions, like real world photons. We define a set of non-perturbative observables (Wilson coefficients) which describe these amplitudes at low energi
Externí odkaz:
https://doaj.org/article/e792e4cee7fc4dad8e67c69f2351cdc2
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 3, Pp 1-45 (2024)
Abstract We study the space of 2 → 2 scattering amplitudes of neutral Goldstone bosons in four space-time dimensions. We establish universal bounds on the first two non-universal Wilson coefficients of the low energy Effective Field Theory (EFT) fo
Externí odkaz:
https://doaj.org/article/47665c9dc6f94667b37c9f0cd8a57af9
Publikováno v:
SciPost Physics, Vol 16, Iss 1, p 034 (2024)
We review the basic assumptions and spell out the detailed arguments that lead to the bound on the Regge growth of gravitational scattering amplitudes. The minimal extra ingredient compared to the gapped case - in addition to unitarity, analyticity,
Externí odkaz:
https://doaj.org/article/fa3ae1b1597d499cb869355da8072136