Abstract
AbstractThe strong-coupling constant is determined from the low-momentum region of the transverse-momentum distribution of Z bosons produced through the Drell–Yan process, using predictions at third order in perturbative QCD. The analysis employs a measurement performed in proton-antiproton collisions at a centre-of-mass energy of $$\sqrt{s} = 1.96$$
s
=
1.96
TeV with the CDF experiment. The determined value of the strong coupling at the reference scale corresponding to the Z-boson mass is $$\alpha _S(m_Z)= 0.1191^{+0.0013}_{-0.0016}$$
α
S
(
m
Z
)
=
0
.
1191
-
0.0016
+
0.0013
.
Publisher
Springer Science and Business Media LLC
Subject
Physics and Astronomy (miscellaneous),Engineering (miscellaneous)