49 citations · 62 across the 2 of their papers we have counts for
9 papers
QED positivity bounds
Lasma Alberte, Claudia de Rham, Sumer Jaitly +1
We apply positivity bounds directly to a gauge theory with charged scalars and charged fermions, i.e. QED, minimally coupled to gravity. Assuming that the massless -chann…
Positivity Bounds and the Massless Spin-2 Pole
Lasma Alberte, Claudia de Rham, Sumer Jaitly +1
The presence of a massless spin-2 field in an effective field theory results in a -channel pole in the scattering amplitudes that precludes the application of standard positivit…
Spontaneously broken boosts and the Goldstone continuum
Lasma Alberte, Alberto Nicolis
The spontaneous breaking of boost invariance is ubiquitous in nature, yet the associated Goldstone bosons are nowhere to be seen. We discuss why some subtleties are to be expected…
Positivity Constraints on Interacting Pseudo-Linear Spin-2 Fields
Lasma Alberte, Claudia de Rham, Arshia Momeni +2
We explore the effective field theory for single and multiple interacting pseudo-linear spin-2 fields. By applying forward limit positivity bounds, we show that among the parameter…
Positivity Constraints on Interacting Spin-2 Fields
Lasma Alberte, Claudia de Rham, Arshia Momeni +2
The consistency of the EFT of two interacting spin-2 fields is checked by applying forward limit positivity bounds on the scattering amplitudes to exclude the region of parameter s…
EFT of Interacting Spin-2 Fields
Lasma Alberte, Claudia de Rham, Arshia Momeni +2
We consider the effective field theory of multiple interacting massive spin-2 fields. We focus on the case where the interactions are chosen so that the cutoff is the highest possi…