Z′ signals from the LEP2 data

被引：0

作者：

Gulov, A. V. ^{[1
]}

Skalozub, V. V. ^{[1
]}

机构：

[1] Dnepropetrovsk Natl Univ, Dnepropetrovsk, Ukraine

来源：

PHYSICS OF ATOMIC NUCLEI | 2008年 / 71卷 / 09期

关键词：

D O I：

10.1134/S1063778808090135

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The LEP2 data on e(+)e(-) -> e(+)e(-), mu(+)mu(-), and tau(+)tau(-) processes are fitted to estimate possible signals of the Abelian Z' boson. In the many-parametric fits, four independent parameters must be fitted if the derived already low-energy relations between the Z' couplings to the standard-model fermions are taken into consideration. No signals are found for the complete LEP2 data set for these processes. In the fit of the backward bins, the hint at the 1.25 sigma C.L. is detected. The Z' couplings to the vector and axial-vector lepton currents are constrained. Comparisons with the one-parameter fits are performed.

引用

页码：1579 / 1584

页数：6

共 14 条

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