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北美退伍军人节(Veterans Day),12 日无更新
arXiv 1303.3570hep-ph
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普适的希格斯粒子

The universal Higgs fit

Pier Paolo Giardino, Kristjan Kannike, Isabella Masina, Martti Raidal, Alessandro Strumia

摘要:

我们对所有希格斯数据进行了最先进的全局拟合。我们将它们合成为一种“通用”形式,可以轻松测试任何所需的模型。我们应用所提出的方法从数据中提取的希格斯分支比,生产截面,耦合和分析复合希格斯模型,模型与额外的希格斯双峰,超对称性,额外的粒子在循环中,异常的顶部耦合,看不见的希格斯衰变成暗物质。最佳拟合区域位于标准模型预测的周围,并且通过我们的“通用”拟合很好地近似。最新的数据排除了玻色子作为希格斯玻色子的替代物,并且不赞成与负汤川耦合的拟合。我们推导出的SM希格斯玻色子质量的第一次从测量的速率,而不是从峰值位置,获得$M_h = 125.0 \pm 1.8$ GeV。

英文摘要:

We perform a state-of-the-art global fit to all Higgs data. We synthesise them into a 'universal' form, which allows to easily test any desired model. We apply the proposed methodology to extract from data the Higgs branching ratios, production cross sections, couplings and to analyse composite Higgs models, models with extra Higgs doublets, supersymmetry, extra particles in the loops, anomalous top couplings, invisible Higgs decay into Dark Matter. Best fit regions lie around the Standard Model predictions and are well approximated by our 'universal' fit. Latest data exclude the dilaton as an alternative to the Higgs, and disfavour fits with negative Yukawa couplings. We derive for the first time the SM Higgs boson mass from the measured rates, rather than from the peak positions, obtaining $M_h = 125.0 \pm 1.8$ GeV.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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