2 papers
hep-ph2026
Vacuum muon decay and interaction with laser pulses
B. King, D. Liu
Muons decay in vacuum mainly via the leptonic channel to an electron, a muon neutrino and an electron antineutrino. Previous investigations have concluded that muon decay can only…
hep-ph2024
Coherent enhancement of QED cross-sections in electromagnetic backgrounds
T. Heinzl, B. King, D. Liu
We introduce form factors that relate the amplitude of a QED process in vacuum to its corresponding background-field process. The latter is characterised by a reduced S-matrix elem…