We construct an off-shell extension of cubic interaction vertices between massless bosonic
Higher Spin fields on a flat background which can be obtained from perturbative bosonic …

A bstract In this work, we investigate the computation of the counterterms necessary for the
renormalization of the one-loop effective action of quantum gravity using both the worldline …

Perturbative quantum field theory usually uses second quantisation and Feynman diagrams.
The worldline formalism provides an alternative approach based on first quantised particle …

A bstract In the first-quantised worldline approach to quantum field theory, a long-standing
problem has been to extend this formalism to amplitudes involving open fermion lines while …

A bstract We derive manifestly covariant actions of spinning particles starting from coadjoint
orbits of isometry groups, by using Hamiltonian reductions. We show that the defining …

We present some generalities of unfolded on-shell dynamics that are useful in analysing the
BMV conjecture for mixed-symmetry fields in constantly curved backgrounds. In particular …

Free Lagrangians are found both for gauge and non-gauge bosonic conformal fields of any
symmetry type and in any space–time dimension. Conformal gauge fields of various types …

We present a new particle model that generalize for constant curvature space an infinite spin
particle in flat space. The model is described by commuting Weyl spinor additional …

A bstract The\(\mathcal {N}\)= 4 supersymmetric spinning particle admits several consistent
quantizations, related to the gauging of different subgroups of the SO (4) R-symmetry on the …

A bstract We obtain a manifestly background independent BRST quantization of
the\(\mathcal {N}= 4\) supersymmetric spinning particle. We show that nilpotency of the …