HADRONIC PART OF THE TAU (G-2) FROM QCD

Authors
HAMZEH F NASRALLAH NF
Citation
F. Hamzeh et Nf. Nasrallah, HADRONIC PART OF THE TAU (G-2) FROM QCD, Physics letters. Section B, 373(1-3), 1996, pp. 211-214
Citations number
6
Categorie Soggetti
Physics
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
373
Issue
1-3
Year of publication
1996
Pages
211 - 214
Database
ISI
SICI code
0370-2693(1996)373:1-3<211:HPOTT(>2.0.ZU;2-U
Abstract
The hadronic part of the tau's (g - 2), a(H)((tau)), is relatively imp ortant due to the large mass of the lepton. A purely theoretical calcu lation of a(H)((tau)), using QCD and the analytic properties of the va cuum polarization tensor is presented. We obtain a(H)((tau)) congruent to 3 x 10(-6) as compared to the pure QED contribution a(QED)((tau)) = 1.17319 x 10(-3).