activity
19982023
most citedScience with the space-based interferometer eLISA. II: Gravitational waves from cosmological phase transitions

929 citations · 9.3k across the 66 of their papers we have counts for

collaborators

73 papers

hep-ph2023

High-Temperature Electroweak Baryogenesis with Composite Higgs

Benedict von Harling, Oleksii Matsedonskyi, Geraldine Servant

Electroweak Baryogenesis (EWBG) paired with the Composite Higgs (CH) scenario provides a well-motivated and testable framework for addressing the questions of the origin of the mat…

hep-ph2023

Constraining Postinflationary Axions with Pulsar Timing Arrays

Géraldine Servant, Peera Simakachorn

Models that produce Axion-Like-Particles (ALP) after cosmological inflation due to spontaneous symmetry breaking also produce cosmic string networks. Those axionic strings l…

hep-ph2023★ 21 cited

ALP dark matter with non-periodic potentials: parametric resonance, halo formation and gravitational signatures

Aleksandr Chatrchyan, Cem Eröncel, Matthias Koschnitzke +1

Axion-like particles (ALPs) are leading candidates to explain the dark matter in the universe. Their production via the misalignment mechanism has been extensively studied for cosi…

hep-ph2022

Status of Electroweak Baryogenesis in Minimal Composite Higgs

Sebastian Bruggisser, Benedict von Harling, Oleksii Matsedonskyi +1

We present an update on the status of electroweak baryogenesis in minimal composite Higgs models. The particularity of this framework is that the electroweak phase transition can p…

hep-ph2022★ 8 cited

Dilaton at the LHC: Complementary Probe of Composite Higgs

Sebastian Bruggisser, Benedict von Harling, Oleksii Matsedonskyi +1

The dilaton is predicted in various extensions of the standard model containing sectors with an approximate spontaneously-broken conformal invariance. As a Goldstone boson of a spo…

hep-ph2022★ 18 cited

Relaxion Dark Matter from Stochastic Misalignment

Aleksandr Chatrchyan, Géraldine Servant

Cosmological relaxation of the electroweak scale via Higgs-axion interplay, named as relaxion mechanism, provides a dynamical solution to the Higgs mass hierarchy. In the original…