TY - JOUR
T1 - Extraction of αs from radiative Υ(1S) decays
AU - Brambilla, Nora
AU - I Tormo, Xavier Garcia
AU - Soto, Joan
AU - Vairo, Antonio
PY - 2007/4/18
Y1 - 2007/4/18
N2 - We improve on a recent determination of αs from Γ(Υ(1S) →γX)/Γ(Υ(1S)→X) with CLEO data by taking into account color octet contributions and avoiding any model dependence in the extraction. We obtain αs(MΥ(1S))=0.184-0.014+0.015, which corresponds to αs(MZ)=0.119-0.005+0.006.
AB - We improve on a recent determination of αs from Γ(Υ(1S) →γX)/Γ(Υ(1S)→X) with CLEO data by taking into account color octet contributions and avoiding any model dependence in the extraction. We obtain αs(MΥ(1S))=0.184-0.014+0.015, which corresponds to αs(MZ)=0.119-0.005+0.006.
UR - http://www.scopus.com/inward/record.url?scp=34247267109&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.75.074014
DO - 10.1103/PhysRevD.75.074014
M3 - Article
AN - SCOPUS:34247267109
SN - 1550-7998
VL - 75
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 074014
ER -