3 papers
hep-th2026
Planck mass gravitinos in Einstein-Maxwell backgrounds
Artur Krawczyk, Krzysztof A. Meissner, Hermann Nicolai +2
Charged massive spin-3/2 fields have long been regarded as problematic, because their coupling to electromagnetism generically leads to loss of hyperbolicity, acausal propagation a…
hep-th2025
Standard Model Symmetries and K(E_10)
Krzysztof A. Meissner, Hermann Nicolai
We clarify and extend our earlier work (K.A.Meissner and H.Nicolai, Phys. Rev. D91 (2015) 065029 and Phys. Rev. Lett. 121 (2018) 091601) where it was shown how to amend a scheme or…
hep-ph2024
Signatures of supermassive charged gravitinos in liquid scintillator detectors
Adrianna Kruk, MichaÅ Lesiuk, Krzysztof A. Meissner +1
In a previous work [K.A. Meissner and H. Nicolai, Eur. Phys. J. C {\bf 84}, 269 (2024)], two of the present authors have suggested possible experimental ways to search for stable s…