498 citations · 655 across the 8 of their papers we have counts for
8 papers
Gravitational Wave Signals in a Promising Realization of SO(10) Unification
Injun Jeong, Jörn Kersten, Stefano Scopel +1
We investigate gravitational wave signals in a non-supersymmetric grand unified model where the group is broken in two steps to the Standard Model gauge group. We calculat…
Gravitational waves from a first-order phase transition of the inflaton
Jörn Kersten, Seong Chan Park, Yeji Park +2
We explore the production of gravitational waves (GW) resulting from a first-order phase transition (FOPT) in a non-minimally coupled `Dark Higgs Inflation' model. Utilizing a dark…
Beyond Cuts in Small Signal Scenarios -- Enhanced Sneutrino Detectability Using Machine Learning
Daniel Alvestad, Nikolai Fomin, Jörn Kersten +2
We investigate enhancing the sensitivity of new physics searches at the LHC by machine learning in the case of background dominance and a high degree of overlap between the observa…
Dark radiation from particle decay: cosmological constraints and opportunities
Jasper Hasenkamp, Jörn Kersten
We study particle decay as the origin of dark radiation. After elaborating general properties and useful parametrisations we provide model-independent and easy-to-use constraints f…
Dark and visible matter with broken R-parity and the axion multiplet
Jasper Hasenkamp, Jörn Kersten
A small breaking of R-parity reconciles thermal leptogenesis, gravitino dark matter and primordial nucleosynthesis. We find that the same breaking relaxes cosmological bounds on th…
Leptogenesis, Gravitino Dark Matter and Entropy Production
Jasper Hasenkamp, Jörn Kersten
Many extensions of the Standard Model predict super-weakly interacting particles, which typically have to decay before Big Bang Nucleosynthesis (BBN). The entropy produced in the d…