TY - JOUR
T1 - Issues in Determining α s from Hadronic τ Decay and Electroproduction Data
AU - Boito, D.
AU - Catà, O.
AU - Golterman, M.
AU - Jamin, M.
AU - Maltman, K.
AU - Osborne, J.
AU - Peris, S.
PY - 2012/4/1
Y1 - 2012/4/1
N2 - We discuss some key issues associated with duality-violating and non-perturbative OPE contributions to the theoretical representations of light quark current-current two-point functions and relevant to precision determinations of α s from hadronic τ decay and electroproduction cross-section data. We demonstrate that analyses with an explicit representation of duality-violating effects are required to bring theoretical errors in such extractions under control, motivating the accompanying paper in these proceedings, which presents the results of such an analysis. © 2012 Elsevier B.V.
AB - We discuss some key issues associated with duality-violating and non-perturbative OPE contributions to the theoretical representations of light quark current-current two-point functions and relevant to precision determinations of α s from hadronic τ decay and electroproduction cross-section data. We demonstrate that analyses with an explicit representation of duality-violating effects are required to bring theoretical errors in such extractions under control, motivating the accompanying paper in these proceedings, which presents the results of such an analysis. © 2012 Elsevier B.V.
KW - α s
KW - τ decay
KW - Duality violation
UR - https://www.scopus.com/pages/publications/84861726882
U2 - 10.1016/j.nuclphysbps.2012.02.032
DO - 10.1016/j.nuclphysbps.2012.02.032
M3 - Article
SN - 0920-5632
VL - 225-227
SP - 153
EP - 156
JO - Nuclear Physics B - Proceedings Supplements
JF - Nuclear Physics B - Proceedings Supplements
ER -