Department of Physics, Oklahoma State University, Stillwater, 74078, USA.
Phys Rev Lett. 2011 Aug 5;107(6):061802. doi: 10.1103/PhysRevLett.107.061802. Epub 2011 Aug 2.
We show that the scalar sector needed for fermion mass generation when the flavor symmetry of the standard model is maximally gauged can consistently explain two anomalies reported recently by the CDF Collaboration-the forward-backward asymmetry in tt pair production and the dijet invariant mass in the Wjj channel. A pair of nearly degenerate scalar doublets with masses in the range 150-200 GeV explain these anomalies, with additional scalars predicted in the mass range 100-400 GeV. Consistency of such low scale flavor physics with flavor-changing processes is shown, and expectations for the LHC are outlined.
我们表明，当标准模型的味对称被最大程度地规范时，生成费米子质量所需的标量部分可以一致地解释最近 CDF 合作实验报告的两个异常现象——tt 对产生的正反面对称性和 Wjj 道中的双喷注不变质量。一对质量在 150-200GeV 范围内的近乎简并标量双态解释了这些异常现象，并且在 100-400GeV 的质量范围内预测了额外的标量。展示了这种低标度味物理与味变化过程的一致性，并概述了 LHC 的预期。
