Using Drell-Yan forward-backward asymmetry to reduce PDF uncertainties in the measurement of electroweak parameters

被引：15
作者：
Bodek, A. [1 ]
Han, J. [1 ]
Khukhunaishvili, A. [1 ]
Sakumoto, W. [1 ]
机构：
[1] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA
来源：
EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 03期
关键词：
PARTON DISTRIBUTIONS;
D O I：
10.1140/epjc/s10052-016-3958-3
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 uncertainties in parton distribution functions (PDFs) are the dominant source of the systematic uncertainty in precision measurements of electroweak parameters at hadron colliders (e.g. sin(2) theta(eff) (M-Z), sin(2) theta(W) = 1-M-W(2) / M-Z(2) and the mass of the W boson). We show that measurements of the forward-backward charge asymmetry (A(FB)(M, y)) of Drell-Yan dilepton events produced at hadron colliders provide a new powerful tool to reduce the PDF uncertainties in these measurements.
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页数：12
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