Determination of the strong-coupling constant from the Z-boson transverse-momentum distribution

被引：0

作者：

Camarda, Stefano ^{[1
]}

Ferrera, Giancarlo ^{[2
,3
]}

Schott, Matthias ^{[4
]}

机构：

[1] CERN, CH-1211 Geneva, Switzerland

[2] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy

[3] INFN, Sez Milano, I-20133 Milan, Italy

[4] Johannes Gutenberg Univ Mainz JGU, Saarstr 21, D-55122 Mainz, Germany

来源：

EUROPEAN PHYSICAL JOURNAL C | 2024年 / 84卷 / 01期

关键词：

YAN LEPTON PAIRS; QCD ANALYSIS; BETA-FUNCTION; ROOT-S=8 TEV; RESUMMATION; UNIVERSALITY; ALPHA(S); COLLISIONS;

D O I：

10.1140/epjc/s10052-023-12373-2

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The strong-coupling constant is determined from the low-momentum region of the transverse-momentum dis-tribution of Z bosons produced through the Drell-Yan pro-cess, 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 root 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(mZ) = 0.1191( -0.0016)(+0.0013).

引用

页数：11

共 50 条

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