Feng J L, Matchev K T
Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Phys Rev Lett. 2001 Apr 16;86(16):3480-3. doi: 10.1103/PhysRevLett.86.3480.
The recently reported measurement of the muon's anomalous magnetic moment differs from the standard model prediction by 2.6 sigma. We examine the implications of this discrepancy for supersymmetry. Deviations of the reported magnitude are generic in supersymmetric theories. Based on the new result, we derive model-independent upper bounds on the masses of observable supersymmetric particles. We also examine several model frameworks. The sign of the reported deviation is as predicted in many simple models, but disfavors anomaly-mediated supersymmetry breaking.
最近报道的μ子反常磁矩测量值与标准模型预测值相差2.6个标准差。我们研究了这种差异对超对称的影响。在超对称理论中，所报道大小的偏差是普遍存在的。基于这一新结果，我们推导出了可观测超对称粒子质量的与模型无关的上限。我们还研究了几个模型框架。所报道偏差的符号与许多简单模型中的预测一致，但不利于反常介导的超对称破缺。
