There is no direct evidence of New Physics on the LHC .currently, but recently the experimental measurements of .R(D(*)) and R(K(*)) might have implied the existence .of New physics. In order to reasonably explain these .anomalous results, this project will extend and modify.the Standard Model and the existing New Physics models. .Based on the latest experimental data, we will constraint .the parameter space of the New Physics models and .explorer the contributions of the constrained New Physics .models to the observables of some other B meson and .\Lambda,\Xi,\Sigma,\Omega baryons rare decays. We .think that our results will be useful for searching these .rare decays on the LHC. We will further study the new .gauge boson Z'-induced the top quark flavor changing .transition and focus on discussing the ability of.discovering the new particle Z' and the .interactions induced by it. We expect that our results .will be helpful and provide theoretical assistance to .search for the New Physics and directly test these .New Physics model.
虽然到目前为止LHC还没有发现新物理存在的直接证据,但最近实验上观测到的.R(D(*))和R(K(*))反常很可能暗示了新物理的存在。为了合理解释这些反常.结果,本项目将对标准模型和已有的新物理模型进行扩充和修正,利用最新的.反常实验数据对新物理模型参数空间进行限制,重点研究限制后的新物理模型对.其他B介子和\Lambda、\Xi、\Sigma、\Omega 等重子稀有衰变过程可观测物理.量的贡献,为未来对撞机上探索这些稀有过程提供理论依据。本项目还将进一步.在对撞机上研究新规范玻色子Z’(解释R(K(*)))诱导的top夸克味改变衰变过程,.重点讨论LHC上发现该新粒子及其引发的新相互作用的能力,为寻找新物理和.检验这种新物理模型提供理论指导。
B介子衰变反常实验测量结果表明轻子味普适破坏,很可能暗示了新物理的存在。本项目利用最新的B介子衰变R(D(*))和R(K(*))反常实验测量数据,对新物理模型标量leptoquarks模型和矢量leptoquark模型进行参数空间限制,然后考虑限制后的新物理模型对一些B介子以及重子衰变过程典型可观测物理量(如微分衰变分支比,微分衰变分支比的比值,轻子前后不对称性以及末态重子和轻子的计划不对称性等)的新物理贡献。研究结果表明新物理模型对这些衰变过程的微分衰变分支比和微分衰变分支比的比值贡献显著。希望为未来高能对撞实验上间接寻找新物理和区分不同的新物理模型提供理论依据和指导。
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数据更新时间:2023-05-31
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