175 citations · 1.6k across the 58 of their papers we have counts for
17 papers · 1 filter
Axion-Photon Conversion in 3D Media and Astrophysical Plasmas
J. I. McDonald, B. Garbrecht, P. Millington
With axions now a primary candidate for dark matter, understanding their indirect astrophysical signatures is of paramount importance. Key to this is the production of photons from…
Non-Hermiticity: a new paradigm for model building in particle physics
Peter Millington
Non-Hermitian quantum theories have been applied in many other areas of physics. In this note, I will briefly review recent developments in the formulation of non-Hermitian quantum…
Fifth-Force Screening around Extremely Compact Sources
Clare Burrage, Benjamin Elder, Peter Millington +2
Many non-linear scalar field theories possess a screening mechanism that can suppress any associated fifth force in dense environments. As a result, these theories can evade local…
Fifth forces and discrete symmetry breaking
Peter Millington
Modifications of general relativity often involve coupling additional scalar fields to the Ricci scalar, leading to scalar-tensor theories of Brans-Dicke type. If the additional sc…
Status of rates and rate equations for thermal leptogenesis
Simone Biondini, Dietrich Bodeker, Nora Brambilla +8
In many realizations of leptogenesis, heavy right-handed neutrinos play the main role in the generation of an imbalance between matter and antimatter in the early Universe. Hence,…
Resonant enhancement in leptogenesis
P. S. Bhupal Dev, Mathias Garny, Juraj Klaric +2
Vanilla leptogenesis within the type I seesaw framework requires the mass scale of the right-handed neutrinos to be above 10^9 GeV. This lower bound can be avoided if at least two…
Flavor effects in leptogenesis
P. S. Bhupal Dev, Pasquale Di Bari, Bjorn Garbrecht +3
Flavor effects can have a significant impact on the final estimate of the lepton (and therefore baryon) asymmetry in scenarios of leptogenesis. It is therefore necessary to account…
Self-consistent radiative corrections to false vacuum decay
Bjorn Garbrecht, Peter Millington
With the Higgs mass now measured at the sub-percent level, the potential metastability of the electroweak vacuum of the Standard Model (SM) motivates renewed study of false vacuum…
Self-consistent solitons for vacuum decay in radiatively generated potentials
Bjorn Garbrecht, Peter Millington
We use a Green's function approach in order to develop a method for calculating the tunneling rate between radiatively-generated non-degenerate vacua. We apply this to a model that…
Corrigendum to "Flavour Covariant Transport Equations: an Application to Resonant Leptogenesis"
P. S. Bhupal Dev, Peter Millington, Apostolos Pilaftsis +1
We amend the incorrect discussion in Nucl. Phys. B 886 (2014) 569 [1] concerning the numerical examples considered there. In particular, we discuss the viability of minimal radiati…
Flavour effects in Resonant Leptogenesis from semi-classical and Kadanoff-Baym approaches
P. S. Bhupal Dev, Peter Millington, Apostolos Pilaftsis +1
Flavour effects play an important role in the statistical evolution of particle number densities in several particle physics phenomena. We present a fully flavour-covariant formali…
Kadanoff-Baym Approach to Flavour Mixing and Oscillations in Resonant Leptogenesis
P. S. Bhupal Dev, Peter Millington, Apostolos Pilaftsis +1
We describe a loopwise perturbative truncation scheme for quantum transport equations in the Kadanoff-Baym formalism, which does not necessitate the use of the so-called Kadanoff-B…
Flavour Covariant Formalism for Resonant Leptogenesis
P. S. Bhupal Dev, Peter Millington, Apostolos Pilaftsis +1
We present a fully flavour-covariant formalism for transport phenomena and apply it to study the flavour-dynamics of Resonant Leptogenesis (RL). We show that this formalism provide…
Flavour Covariant Transport Equations: an Application to Resonant Leptogenesis
P. S. Bhupal Dev, Peter Millington, Apostolos Pilaftsis +1
We present a fully flavour-covariant formalism for transport phenomena, by deriving Markovian master equations that describe the time-evolution of particle number densities in a st…
Perturbative Non-Equilibrium Thermal Field Theory to all Orders in Gradient Expansion
Peter Millington, Apostolos Pilaftsis
We present a new perturbative formulation of non-equilibrium thermal field theory, based upon non-homogeneous free propagators and time-dependent vertices. The resulting time-depen…
Thermal field theory to all orders in gradient expansion
Peter Millington, Apostolos Pilaftsis
We present a new perturbative formulation of non-equilibrium thermal field theory, based upon non-homogeneous free propagators and time-dependent vertices. The resulting time-depen…
Perturbative Non-Equilibrium Thermal Field Theory
Peter Millington, Apostolos Pilaftsis
We present a new perturbative formulation of non-equilibrium thermal field theory, based upon non-homogeneous free propagators and time-dependent vertices. Our approach to non-equi…