200 citations · 1.8k across the 55 of their papers we have counts for
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Bubble Trouble: a Review on Electroweak Baryogenesis
Jorinde van de Vis, Jordy de Vries, Marieke Postma
The origin of the universal asymmetry between matter and antimatter remains a mystery. Electroweak baryogenesis is a well-motivated mechanism for generating the asymmetry dynamical…
Triple Higgs boson production and electroweak phase transition in the two-real-singlet model
Osama Karkout, Andreas Papaefstathiou, Marieke Postma +3
The production of three Higgs bosons at hadron colliders can be enhanced by a double-resonant effect in the -symmetric two-real-singlet extension of the Standard Mode…
SIMPly add a dark photon
Pieter Braat, Marieke Postma
Pions of a dark sector gauge group can be strongly interacting massive particle (SIMP) dark matter, produced by the freeze-out of interactions, with naturally large self-…
Resummation and cancellation of the VIA source in electroweak baryogenesis
Marieke Postma, Jorinde van de Vis, Graham White
We re-derive the vev-insertion approximation (VIA) source in electroweak baryogenesis. In contrast to the original derivation, we rely solely on 1-particle-irreducible self-energy…
Theories and Experiments for Testable Baryogenesis Mechanisms: A Snowmass White Paper
J. L. Barrow, Leah Broussard, James M. Cline +16
The baryon asymmetry of the Universe is one of the central motivations to expect physics beyond the Standard Model. In this Snowmass white paper, we review the challenges and oppor…
A different perspective on the vev insertion approximation for electroweak baryogenesis
Marieke Postma
In the vev insertion approximation (VIA) the spacetime dependent part of the mass matrix is treated as a perturbation. We calculate the source terms for baryogenesis expanding both…
Cosmological phase transitions: is effective field theory just a toy?
Marieke Postma, Graham White
To obtain a first order phase transition requires large new physics corrections to the Standard Model (SM) Higgs potential. This implies that the scale of new physics is relatively…
Matching and running sensitivity in non-renormalizable inflationary models
Jacopo Fumagalli, Marieke Postma, Melvin van den Bout
Most of the inflationary models that are in agreement with the Planck data rely on the presence of non-renormalizable operators. If the connection to low energy particle physics is…
Source terms for electroweak baryogenesis in the vev-insertion approximation beyond leading order
Marieke Postma, Jorinde van de Vis
In electroweak baryogenesis the baryon asymmetry of the universe is created during the electroweak phase transition. The quantum transport equations governing the dynamics of the p…
The role of leptons in electroweak baryogenesis
Jordy de Vries, Marieke Postma, Jorinde van de Vis
We investigate the role of leptons in electroweak baryogenesis by studying a relatively simple framework inspired by effective field theory that satisfies all Sakharov conditions.…
Electroweak Baryogenesis and the Standard Model Effective Field Theory
Jordy de Vries, Marieke Postma, Jorinde van de Vis +1
We investigate electroweak baryogenesis within the framework of the Standard Model Effective Field Theory. The Standard Model Lagrangian is supplemented by dimension-six operators…
Unitarity and predictiveness in new Higgs inflation
Jacopo Fumagalli, Sander Mooij, Marieke Postma
In new Higgs inflation the Higgs kinetic terms are non-minimally coupled to the Einstein tensor, allowing the Higgs field to play the role of the inflaton. The new interaction is n…
Electroweak stability and non-minimal coupling
Marieke Postma, Jorinde van de Vis
The measured values of the Higgs and top quark mass indicate that the electroweak vacuum is metastable if there is no new physics below the Planck scale. This is at odds with a per…
Radiative bound-state-formation cross-sections for dark matter interacting via a Yukawa potential
Kalliopi Petraki, Marieke Postma, Jordy de Vries
We calculate the cross-sections for the radiative formation of bound states by dark matter whose interactions are described in the non-relativistic regime by a Yukawa potential. Th…
UV (in)sensitivity of Higgs inflation
Jacopo Fumagalli, Marieke Postma
The predictions of Standard Model Higgs inflation are in excellent agreement with the Planck data, without the need for new fields. However, consistency of the theory requires the…
Dark-matter bound states from Feynman diagrams
Kalliopi Petraki, Marieke Postma, Michael Wiechers
If dark matter couples directly to a light force mediator, then it may form bound states in the early universe and in the non-relativistic environment of haloes today. In this work…
Goldstone bosons and a dynamical Higgs field
Sander Mooij, Marieke Postma
Higgs inflation uses the gauge variant Higgs field as the inflaton. During inflation the Higgs field is displaced from its minimum, which results in associated Goldstone bosons tha…
Hybrid inflation with moduli stabilization and low scale supersymmetry breaking
Sander Mooij, Marieke Postma
We study the supergravity hybrid inflation model of Ref.[1] in the presence of a modulus field. The eta-problem is solved by a shift symmetry for the inflaton, which protects the i…
Dynamics of Moduli and Gaugino Condensates in an Expanding Universe
Chloe Papineau, Marieke Postma, Saul Ramos-Sanchez
We study dynamical moduli stabilization driven by gaugino condensation in supergravity. In the presence of background radiation, there exists a region of initial conditions leading…
Massive hidden photons as lukewarm dark matter
Marieke Postma, Javier Redondo
We study the possibility that a keV-MeV mass hidden photon (HP), i.e. a hidden sector U(1) gauge boson, accounts for the observed amount of dark matter. We focus on the case where…
SUGRA chaotic inflation and moduli stabilisation
Stephen C. Davis, Marieke Postma
Chaotic inflation predicts a large gravitational wave signal which can be tested by the upcoming Planck satellite. We discuss a SUGRA implementation of chaotic inflation in the pre…
Leptogenesis from reheating after inflation and cosmic string decay
Rachel Jeannerot, Marieke Postma
Cosmic strings form at the end of standard supersymmetric hybrid inflation, and both inflation and strings contribute to the CMB anisotropies. If the symmetry which is broken at th…
Confronting hybrid inflation in supergravity with CMB data
Rachel Jeannerot, Marieke Postma
-term GUT inflation coupled to N=1 Supergravity is confronted with CMB data. Corrections to the string mass-per-unit-length away from the Bogomolny limit are taken into account.…
Chiral cosmic strings in supergravity
Rachel Jeannerot, Marieke Postma
We consider F and D-term cosmic strings formed in supersymmetric theories. Supersymmetry is broken inside the string core, but restored outside. In global SUSY, this implies the ex…