Abstract
It is shown that discrepancies between soft pion current algebra (or chiral symmetry) calculations in Kℓ 4 and experiments are mostly due to the square root threshold singularity of the pion-pion interaction. For the same reason, chiral symmetry breaking calculations of the scalar Kℓ 3 form factor cannot be extended to the threshold of τ → K πν decay.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Paper version not known
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
