离壳：NuTeV实验的电弱物理
高能物理 - 实验
2009-06-02 v1
摘要
NuTeV合作组在高强度、高能中微子和反中微子束流下，对致密（主要为钢）靶上的中性流与带电电流截面之比进行了精确测量。分离的中微子和反中微子束、高统计量以及对其他实验系统误差的改进控制，使得电弱参数的确定精度显著高于以往的中微子-核子散射实验。我们对标准模型预测的零假设检验测得sin²θW=0.2277±0.0013（统计）±0.0009（系统），该值比预测值高3个标准差。我们讨论了这一差异的可能解释及其影响。
引用
@article{arxiv.hep-ex/0210010,
title = {Off the Mass Shell: Electroweak Physics at NuTeV},
author = {K. S. McFarland and G. P. Zeller and T. Adams and A. Alton and S. Avvakumov and L. deBarbaro and P. deBarbaro and R. H. Bernstein and A. Bodek and T. Bolton and J. Brau and D. Buchholz and H. Budd and L. Bugel and J. Conrad and R. B. Drucker and B. T. Fleming and R. Frey and J. A. Formaggio and J. Goldman and M. Goncharov and D. A. Harris and R. A. Johnson and J. H. Kim and S. Koutsoliotas and M. J. Lamm and W. Marsh and D. Mason and J. McDonald and C. McNulty and D. Naples and P. Nienaber and V. Radescu and A. Romosan and W. K. Sakumoto and H. Schellman and M. H. Shaevitz and P. Spentzouris and E. G. Stern and N. Suwonjandee and M. Tzanov and M. Vakili and A. Vaitaitis and U. K. Yang and J. Yu and E. D. Zimmerman},
journal= {arXiv preprint arXiv:hep-ex/0210010},
year = {2009}
}
备注
12 pages, 1 figure, submitted to the proceedings of the XXII Physics in Collision Conference