{"title":"3-4-1-1模型中b \\到s \\ γ $的辐射衰减研究","authors":"Duy Nguyen Tuan, Huong Do Thi","doi":"10.15625/0868-3166/17517","DOIUrl":null,"url":null,"abstract":"We investigate the branching ratio of the radiative decay $b\\to s \\gamma$ in the 3-4-1-1 model with arbitrary charge parameters $p,q$. We show that the new Higgs bosons, $\\mathcal{H}_1^\\pm$, and the new gauge bosons $W_{13,14 }^{\\pm p,q}, Z_{2,3}$ contribute to this decay. Of these sources, the main contribution comes from the interaction of the singly-charged Higgs boson. If the spontaneous breaking of the enlarged gauge group symmetry down to the electroweak group is around a few TeVs, the predictions for the branching ratio Br($b\\to s \\gamma$) and meson mixing are both consistent with experimental constraints.","PeriodicalId":10571,"journal":{"name":"Communications in Physics","volume":"11 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2023-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Investigation of the radiative decay $b \\\\to s \\\\gamma$ in the 3-4-1-1 model\",\"authors\":\"Duy Nguyen Tuan, Huong Do Thi\",\"doi\":\"10.15625/0868-3166/17517\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"We investigate the branching ratio of the radiative decay $b\\\\to s \\\\gamma$ in the 3-4-1-1 model with arbitrary charge parameters $p,q$. We show that the new Higgs bosons, $\\\\mathcal{H}_1^\\\\pm$, and the new gauge bosons $W_{13,14 }^{\\\\pm p,q}, Z_{2,3}$ contribute to this decay. Of these sources, the main contribution comes from the interaction of the singly-charged Higgs boson. If the spontaneous breaking of the enlarged gauge group symmetry down to the electroweak group is around a few TeVs, the predictions for the branching ratio Br($b\\\\to s \\\\gamma$) and meson mixing are both consistent with experimental constraints.\",\"PeriodicalId\":10571,\"journal\":{\"name\":\"Communications in Physics\",\"volume\":\"11 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-03-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Communications in Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.15625/0868-3166/17517\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Communications in Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.15625/0868-3166/17517","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
摘要
我们研究了具有任意电荷参数$p,q$的3-4-1-1模型中辐射衰变$b\到$ s \gamma$的分支比。我们证明了新的希格斯玻色子$\mathcal{H}_1^\pm$和新的规范玻色子$W_{13,14}^{\pm p,q}, Z_{2,3}$对这种衰变有贡献。在这些来源中,主要贡献来自单电荷希格斯玻色子的相互作用。如果扩大规范群对称性自发破断到电弱群大约是几个tev,则分支比Br($b\to s \gamma$)和介子混合的预测都符合实验约束。
Investigation of the radiative decay $b \to s \gamma$ in the 3-4-1-1 model
We investigate the branching ratio of the radiative decay $b\to s \gamma$ in the 3-4-1-1 model with arbitrary charge parameters $p,q$. We show that the new Higgs bosons, $\mathcal{H}_1^\pm$, and the new gauge bosons $W_{13,14 }^{\pm p,q}, Z_{2,3}$ contribute to this decay. Of these sources, the main contribution comes from the interaction of the singly-charged Higgs boson. If the spontaneous breaking of the enlarged gauge group symmetry down to the electroweak group is around a few TeVs, the predictions for the branching ratio Br($b\to s \gamma$) and meson mixing are both consistent with experimental constraints.