B-meson anomalies and Higgs physics in flavored U(1)' model
B-meson anomalies and Higgs physics in flavored U(1)' model
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DOI：
10.1140/epjc/s10052-018-5777-1
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发表时间：
2018
影响因子：
4.4
通讯作者：
Park Chan Beom
中科院分区：
文献类型：
--
作者：
Bian Ligong;Lee Hyun Min;Park Chan Beom
我们考虑了一个简单的与味道相关的标准模型的扩展，它被用来解释最近在LHCb报道的一些OFB介子反常现象。该充电被选为无异常和无异常的线性组合。在这个模型中，由于依赖于味道的电荷，SM中的味道结构受到限制，特别是夸克混合是由额外的Higgs二重态的小真空期望值引起的。因此，自然会得到相当大的味道--违反汤川耦合的重希格斯玻色子涉及底部夸克。在这篇文章中，我们集中在模型的希格斯部分的现象学，包括额外的希格斯二重态和单态标量。我们从Higgs和弱电精确度数据、B介子的混合和衰变以及正则性和稳定界对扩展的Higgs扇区施加了各种界限，然后讨论了LHC上重Higgs玻色子的产生和衰变。
We consider a simple extension of the Standard Model with flavor-dependent, that has been proposed to explain some ofB-meson anomalies recently reported at LHCb. Thecharge is chosen as a linear combination of anomaly-freeand. In this model, the flavor structure in the SM is restricted due to flavor-dependentcharges, in particular, quark mixings are induced by a small vacuum expectation value of the extra Higgs doublet. As a result, it is natural to get sizable flavor-violating Yukawa couplings of heavy Higgs bosons involving the bottom quark. In this article, we focus on the phenomenology of the Higgs sector of the model including extra Higgs doublet and singlet scalars. We impose various bounds on the extended Higgs sector from Higgs and electroweak precision data,B-meson mixings and decays as well as unitarity and stability bounds, then discuss the productions and decays of heavy Higgs bosons at the LHC.