LHC constraints on a B − L gauge model using Contur
LHC constraints on a B − L gauge model using Contur
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DOI：
10.1007/jhep05(2019)154
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发表时间：
2018-11
影响因子：
5.4
通讯作者：
S. Amrith;J. Butterworth;F. Deppisch;W. Liu;A. Varma;D. Yallup
中科院分区：
文献类型：
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作者：
S. Amrith;J. Butterworth;F. Deppisch;W. Liu;A. Varma;D. Yallup
来自大型强子对撞机的庞大且不断增长的测量数据库对限制标准模型的扩展具有重要的意义。我们考虑这样的约束一个动机良好的模型，涉及规范和自发破缺的B-L对称性，在C翁图尔框架。该模型包含一个额外的希格斯玻色子，一个规范玻色子，和右手中微子与马约拉纳质量。这种新的粒子含量意味着一个不同的现象高度依赖于模型的参数，非常适合这种一般性的研究。我们发现，现有的大型强子对撞机测量显着约束模型在有趣的区域参数空间。其他区域仍然开放，其中一些区域在未来LHC数据的范围内。
The large and growing library of measurements from the Large Hadron Collider has significant power to constrain extensions of the Standard Model. We consider such constraints on a well-motivated model involving a gauged and spontaneously-broken B− L symmetry, within the C ontur framework. The model contains an extra Higgs boson, a gauge boson, and right-handed neutrinos with Majorana masses. This new particle content implies a varied phenomenology highly dependent on the parameters of the model, very well-suited to a general study of this kind. We find that existing LHC measurements significantly constrain the model in interesting regions of parameter space. Other regions remain open, some of which are within reach of future LHC data.