Determination of the strong coupling constant from the inclusive jet cross section in pp collisions at s=1.96 TeV
Determination of the strong coupling constant from the inclusive jet cross section in pp collisions at s=1.96 TeV
复制标题
DOI：
10.1103/physrevd.80.111107
复制
发表时间：
2009-12-01
影响因子：
5
通讯作者：
Zverev, E. G.
中科院分区：
文献类型：
--
作者：
Abazov, V. M.;Abbott, B.;Zverev, E. G.
我们从s=1.96 TeV时pp碰撞中包含射流截面的p(T)依赖性确定了强耦合常数α (s)及其能量依赖性。强耦合常数在横向动量50 < p(T)< 145 GeV范围内确定。使用微扰QCD计算O(alpha（3)(s)）阶与O(alpha（4)(s)）阈值修正贡献相结合，我们得到alpha(s)(M-Z)=0.1161(-0.0048)（+0.0041）。这是在强子对撞机上得到的最精确的结果。
We determine the strong coupling constant alpha(s) and its energy dependence from the p(T) dependence of the inclusive jet cross section in pp collisions at s=1.96 TeV. The strong coupling constant is determined over the transverse momentum range 50 < p(T)< 145 GeV. Using perturbative QCD calculations to order O(alpha(3)(s)) combined with O(alpha(4)(s)) contributions from threshold corrections, we obtain alpha(s)(M-Z)=0.1161(-0.0048)(+0.0041). This is the most precise result obtained at a hadron-hadron collider.