Measure or simulate femtosecond nuclear lifetimes with the Doppler-velocity DSAM (Delta-beta) method — beta at the reaction from the detected ejectile (energy + angle, energy-loss corrected) minus beta at gamma emission from the Doppler shift, Delta-beta(theta) centroids in angular windows with energy/angle-offset nuisance fit, and a Delta-beta vs tau calibration (simulation, known lifetimes, d beta/dt from stopping powers). Use for AGATA/GRETA/HPGe lifetime analyses with a silicon ejectile detector, implanted or gas targets, inverse-kinematics transfer reactions, DSAM feasibility studies and lifetime sensitivity estimates, Bayesian Delta-beta–tau fits, or whenever someon…
