4 papers
Quantum corrections to symmetron fifth forces for planar sources
Peter Millington, Michael Udemba
We provide a semi-analytic calculation of the first quantum corrections to the symmetron fifth force around a planar source with nonzero thickness. We find a suppression of the fif…
Quantum corrections to symmetron fifth-force profiles
Peter Millington, Michael Udemba
Nonlinear scalar-tensor theories of gravity have been considered as candidates for dark matter and dark energy. Often, they possess screening mechanisms, which allow the fifth forc…
Scalar radiation zeros at the LHC
Christoph Englert, Andrei Lazanu, Peter Millington
We consider a class of singlet scalar extensions of the Standard Model of particle physics in which the scalar couples only to off-shell states. As a result, low-order tree-level p…
Recasting scalar-tensor theories of gravity for colliders
Andrei Lazanu, Peter Millington, Sergio Sevillano Muñoz
Diagrammatic approaches to perturbation theory transformed the practicability of calculations in particle physics. In the case of extended theories of gravity, however, obtaining t…