Prefer a chat interface with context about you and your work?
Longitudinal contributions to hadronic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>τ</mml:mi></mml:math>decay
A number of recent determinations of ${m}_{s}$ using hadronic $\ensuremath{\tau}$ decay data involve inclusive analyses based on the so-called $(k,0)$ spectral weights. We show here that the OPE representations of the longitudinal contributions appearing in these analyses, which are already known to be poorly converging, have in addition an unphysical …