Go to content
UR Home

Instanton contributions to the τ decay widths

Balitsky, I. I., Beneke, M. and Braun, Vladimir M. (1993) Instanton contributions to the τ decay widths. Physics Letters B 318 (2), pp. 371-381.

[img]
Preview
PDF
Download (195kB)
Date of publication of this fulltext: 12 Apr 2010 12:07

at publisher (via DOI)

at arXiv


Abstract

Contrary to some previous claims, we find a sizable instanton contribution to the finite energy sum rule used to extract the value of the strong coupling from the measured τ decay widths. It is of the same order of magnitude as standard nonperturbative corrections induced by vacuum quark and gluon condensates. Our result indicates that there might be no hierarchy of power corrections in finite ...

plus


Export bibliographical data



Item type:Article
Date:2 December 1993
Institutions:Physics > Institute of Theroretical Physics > Chair Professor Braun > Group Vladimir Braun
Identification Number:
ValueType
10.1016/0370-2693(93)90142-5DOI
hep-ph/9309217arXiv ID
Related URLs:
URLURL Type
http://arxiv.org/abs/hep-ph/9309217Preprint
Dewey Decimal Classification:500 Science > 530 Physics
Status:Published
Refereed:Unknown
Created at the University of Regensburg:Unknown
Item ID:13992
Owner only: item control page

Downloads

Downloads per month over past year

  1. Homepage UR

University Library

Publication Server

Contact:

Publishing: oa@ur.de

Dissertations: dissertationen@ur.de

Research data: daten@ur.de

Contact persons