3 papers
hep-ph2026
IterInt: Evaluating iterated integrals via differential equations
Gideon Baur, Claude Duhr
We introduce IterInt, a novel package implemented in both Mathematica and C++ for the numerical evaluation of iterated integrals involving arbitrary integration kernels. After the…
hep-ph2025
Dynamics of metastable Standard Model particles from long-lived particle decays in the MeV primordial plasma
Kensuke Akita, Gideon Baur, Maksym Ovchynnikov +2
We investigate the cosmological impact of hypothetical unstable new physics particles that decay in the MeV-scale plasma of the Early Universe. Focusing on scenarios where the deca…
hep-ph2025
New physics decaying into metastable particles: impact on cosmic neutrinos
Kensuke Akita, Gideon Baur, Maksym Ovchynnikov +2
We investigate decays of hypothetical unstable new physics particles into metastable species such as muons, pions, or kaons in the Early Universe, when temperatures are in the MeV…