RADIATIVE-CORRECTIONS TO THE DECAY TAU-]PI(K)NU(TAU)

Authors
DECKER R FINKEMEIER M
Citation
R. Decker et M. Finkemeier, RADIATIVE-CORRECTIONS TO THE DECAY TAU-]PI(K)NU(TAU), Physics letters. Section B, 316(2-3), 1993, pp. 403-406
Citations number
7
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
316
Issue
2-3
Year of publication
1993
Pages
403 - 406
Database
ISI
SICI code
0370-2693(1993)316:2-3<403:RTTDT>2.0.ZU;2-2
Abstract
We have calculated the O(alpha) radiative corrections to the tau decay tau --> pi(K)nu, taking into account both the point meson contributio n and the structure dependent radiation, We find for the ratio GAMMA(t au --> pinu(gamma))/GAMMA(pi --> munu(gamma)) a radiative correction o f +1.2% and for GAMMA(tau --> Knu(gamma))/GAMMA(K --> munu(gamma)) one of +2.0%. We compare our results with an earlier estimation and with experimental data.