We discuss the prediction of the W boson mass in a simple extension of the Standard Model (ΣSM) with a real scalar triplet. A shift in the W mass as reported by the CDF II collaboration can naturally be accommodated by the model without modifying the Standard Model value for the Z mass. We discuss the main implications and the properties of the new Higgs bosons. Namely, the partial decay widths of the new charged Higgs are predicted. Furthermore, the neutral Higgs has suppressed couplings to fermions and decays predominantly into a pair of W gauge bosons.

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关于 W 质量和新希格斯玻色子

我们在标准模型 (ΣSM) 的简单扩展中讨论了W玻色子质量的预测，该模型具有实标量三元组。CDF II 协作报告的W质量的变化可以自然地由模型适应，而无需修改Z质量的标准模型值。我们讨论了新希格斯玻色子的主要含义和性质。也就是说，预测了新带电希格斯粒子的部分衰减宽度。此外，中性希格斯粒子抑制了与费米子的耦合，并主要衰变为一对W规范玻色子。