We calculate lattice renormalisation constants of local and one-link quark operators for overlap fermions and improved gauge actions in one-loop perturbation theory. For the local operators we stout smear the SU(3) links in the fermionic action. Using the popular tadpole improved Lüscher-Weisz actions at β = 8.45 and β = 8.0 we present numerical values for the Z factors in the MS scheme (partly...

Most anuran larvae show large lateral oscillations at both the tip of the tail and the snout while swimming in a straight line. Although the lateral deflections at the snout have long been considered an inefficient aspect of tadpole locomotion, a recent hydrodynamic model suggests that they may in fact help generate thrust. It is not clear though exactly where this bending takes place. The vert...

Degeneracy is a method to accommodate exact, low energy vacuum states in scalar-tensor gravitational models despite the presence of an arbitrarily large energy. However, this approach requires very particular combinations scalar field and metric couplings Lagrangian. In work we study departures from restrictive degeneracy condition -- starting fiducial model containing exact Minkowski space sol...

D7-brane moduli are stabilized by worldvolume fluxes, which contribute to the D3-brane tadpole. We calculate this contribution in Type IIB limit of F-theory compactifications on Calabi-Yau four-folds with a weak Fano base, and able prove no-go theorem for vast swathes landscape compactifications. When genus curve dual D7 fluxes is fixed number grows, we find that D3 charge sourced grows faster ...

We calculate the corrections to the Higgs mass in general theories restricted to the case of massless gauge bosons (the gaugeless limit). We present analytic expressions for the two-loop tadpole diagrams, and corresponding expressions for the zero-momentum limit of the Higgs self-energies, equivalent to the second derivative of the twoloop effective potential. We describe the implementation in ...