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Purely flavor-changing Z' bosons and where they might hide
Patrick Foldenauer, Joerg Jaeckel
A plethora of ultraviolet completions of the Standard Model have extra U(1) gauge symmetries. In general, the associated massive gauge boson can mediate flavor-changing…
Getting Stuck: Using Monosignatures to Test Highly Ionizing Particles
Christoph Englert, Joerg Jaeckel
In this paper we argue that monojet and monophoton searches can be a sensitive test of very highly ionizing particles such as particles with charges and more general…
Monodromy Dark Matter
Joerg Jaeckel, Viraf M. Mehta, Lukas T. Witkowski
Light pseudo-Nambu-Goldstone bosons (pNGBs) such as, e.g.~axion-like particles, that are non-thermally produced via the misalignment mechanism are promising dark matter candidates.…
Hidden Photons in Aharonov-Bohm-Type Experiments
Paola Arias, Christian Diaz, Marco Aurelio Diaz +3
We discuss the Aharonov-Bohm effect in the presence of hidden photons kinetically mixed with the ordinary electromagnetic photons. The hidden photon field causes a slight phase shi…
Hearing the signals of dark sectors with gravitational wave detectors
Joerg Jaeckel, Valentin V. Khoze, Michael Spannowsky
Motivated by aLIGO's recent discovery of gravitational waves we discuss signatures of new physics that could be seen at ground and space-based interferometers. We show that a first…
ALPtraum: ALP production in proton beam dump experiments
Babette Döbrich, Joerg Jaeckel, Felix Kahlhoefer +2
With their high beam energy and intensity, existing and near-future proton beam dumps provide an excellent opportunity to search for new very weakly coupled particles in the MeV to…