LEP 实验中 e⁺e⁻ → \tau^+\tau^- 过程的自旋分析
高能物理 - 实验
2009-10-30 v1
摘要
Using the data collected by the four experiments at LEP during 1990-1994, a precise measurement of the tau longitudinal polarisation (P_tau) has been performed, as well as the measurement of the transverse-transverse and transverse-normal tau spin correlations. From the P_tau measurement, assuming lepton universality of the neutral currents, the effective weak mixing angle has been determined to be sin(theta_W) = 0.2325 +- 0.0006. The Standard Model predictions are consistent with the measured results.
引用
@article{arxiv.hep-ex/9709001,
title = {Spin Analysis of the Process e+e- --> tau+tau- at LEP},
author = {P. Garcia-Abia},
journal= {arXiv preprint arXiv:hep-ex/9709001},
year = {2009}
}
备注
Invited talk to San Miniato 1997, 6 pages, 10 figures, Latex, macro espcrc2.sty included