4 papers
Flavor hierarchies with nonminimal irreducible representations
Hannah Banks, Graeme Crawford, Matthew McCullough +1
We propose a new class of flavour models in which the spurion which breaks Standard Model flavour symmetries transforms in a non-minimal representation. Hierarchies in fermion mass…
Diagonalising the LEFT
Sophie Renner, Benjamin Smith, Dave Sutherland
We organise the four-fermion vector current interactions below the weak scale -- i.e., in the low energy effective field theory (LEFT) -- into irreps of definite parity and …
Non-decoupling scalars at future colliders
Graeme Crawford, Dave Sutherland
We consider a class of BSM models where a generic scalar electroweak multiplet obtains a significant fraction of its mass from a coupling to the Higgs. Such models are non-decoupli…
On Amplitudes and Field Redefinitions
Timothy Cohen, Xiaochuan Lu, Dave Sutherland
We derive an off-shell recursion relation for correlators that holds at all loop orders. This allows us to prove how generalized amplitudes transform under generic field redefiniti…