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Measurement of the angular distribution of electrons from W -> e nu decays observed in p(p)over-bar collisions at root s=1.8 TeV
DØ Collaboration
2001
发表期刊PHYSICAL REVIEW D
卷号63期号:7页码:72001
通讯作者Abbott, B (reprint author), NYU, New York, NY 10003 USA.
文章类型Article
摘要We present the first measurement of the electron angular distribution parameter alpha (2) in W-->e nu events produced in proton-antiproton collisions as a function of the W boson transverse momentum. Our analysis is based on data collected using the D empty set detector during the 1994-1995 Fermilab Tevatron run. We compare our results with next-to-leadiog order perturbative QCD, which predicts an angular distribution of (1 +/- alpha (1) cos theta* + alpha (2) cos(2) theta*), whew theta* is the polar angle of the electron in the Collins-Soper frame. In the presence of QCD corrections, the parameters alpha (1) and alpha (2) become functions of p(T)(W), the W boson transverse momentum. This measurement provides a test of next-to-leading order QCD corrections which are a non negligible contribution to the W boson mass measurement.
学科领域Astronomy & Astrophysics; Physics
DOI10.1103/PhysRevD.63.072001
收录类别SCI
WOS类目Astronomy & Astrophysics ; Physics, Particles & Fields
WOS记录号WOS:000167792200005
引用统计
被引频次:4[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/227929
专题实验物理中心
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DØ Collaboration. Measurement of the angular distribution of electrons from W -> e nu decays observed in p(p)over-bar collisions at root s=1.8 TeV[J]. PHYSICAL REVIEW D,2001,63(7):72001.
APA DØ Collaboration.(2001).Measurement of the angular distribution of electrons from W -> e nu decays observed in p(p)over-bar collisions at root s=1.8 TeV.PHYSICAL REVIEW D,63(7),72001.
MLA DØ Collaboration."Measurement of the angular distribution of electrons from W -> e nu decays observed in p(p)over-bar collisions at root s=1.8 TeV".PHYSICAL REVIEW D 63.7(2001):72001.
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