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Behavior of composite resonances breaking lepton flavor universality

机译：复合共振的行为打破了轻质风味的普遍性

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Within the context of composite Higgs models, recent hints on lepton flavor nonuniversality in B decays can be explained by a vector resonance V with sizeable couplings to the Standard Model leptons ( ? ). We argue that, in such a case, spin- 1 / 2 leptonic resonances ( L ) are most probably light enough to open the decay mode V → L ? . This implies, in combination with the fact that couplings between composite resonances are much larger than those between composite and elementary fields, that this new decay can be important. In this paper, we explore under which conditions it dominates over other decay modes. Its discovery, however, requires a dedicated search strategy. Employing jet substructure techniques, we analyze the final state with largest branching ratio, namely μ + μ ? Z / h , Z / h → jets. We show that (i)?parameter space regions that were believed excluded by dimuon searches are still allowed, (ii)?these regions can already be tested with the dedicated search we propose and (iii)? V masses as large as ～ 3.5 ? ? TeV can be probed at the LHC during the high-luminosity phase.
机译：在复合希格斯模型的背景下，有关B衰变中的轻子风味非通用性的最新提示可以通过向量共振V来解释，该共振与标准模型轻子（？）具有相当大的耦合。我们认为，在这种情况下，自旋1/2的轻子共振（L）很可能足以打开衰减模式V→L？。 。这意味着，结合复合谐振之间的耦合比复合磁场与基本场之间的耦合大得多的事实，这种新的衰减可能很重要。在本文中，我们探索了在哪些条件下它优于其他衰减模式。但是，其发现需要专用的搜索策略。利用射流子结构技术，我们分析了最大分支比即μ+μ？的最终状态。 Z / h，Z / h→射流。我们显示（i）仍然允许被dimuon搜索排除的参数空间区域;（ii）这些区域可以通过我们建议的专用搜索进行测试;以及（iii）？ V质量达到〜3.5？ ？可以在高发光度阶段在LHC上探测TeV。

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