446 citations · 2.2k across the 23 of their papers we have counts for
23 papers
The Price of Tiny Kinetic Mixing
Tony Gherghetta, Joern Kersten, Keith Olive +1
We consider both "bottom-up" and "top-down" approaches to the origin of gauge kinetic mixing. We focus on the possibilities for obtaining kinetic mixings which are consistent w…
Gaugino Mediation with Large Trilinears
Jan Heisig, Joern Kersten, Nick Murphy +1
Gaugino mediation is an attractive supersymmetry breaking scheme naturally avoiding flavor problems by suppressing the soft sfermion masses at a high-energy scale. We consider an e…
Suppressing structure formation at dwarf galaxy scales and below: late kinetic decoupling as a compelling alternative to warm dark matter
Torsten Bringmann, Haavard Tveit Ihle, Joern Kersten +1
Warm dark matter cosmologies have been widely studied as an alternative to the cold dark matter paradigm, the characteristic feature being a suppression of structure formation on s…
Decoherence and oscillations of supernova neutrinos
Joern Kersten, Alexei Yu. Smirnov
Supernova neutrinos have several exceptional features which can lead to interesting physical consequences. At the production point their wave packets have an extremely small size $…
Tight bonds between sterile neutrinos and dark matter
Torsten Bringmann, Jasper Hasenkamp, Joern Kersten
Despite the astonishing success of standard CDM cosmology, there is mounting evidence for a tension with observations at small and intermediate scales. We introduce a simple mod…
Production of long-lived staus in the Drell-Yan process
Jan Heisig, Joern Kersten
We investigate the phenomenology of the gravitino dark matter scenario with a stau as the next-to-lightest supersymmetric particle at the LHC. For a wide range of gravitino masses…