Search for new heavy gauge bosons and contact interactions in Drell-Yan production with Atlas'

该项目包括通过最终态的轻子对寻找新的重规玻色子。由于在低背景速率下具有清晰的特征，这被认为是发现的“黄金”通道。新的大型强子对撞机运行3的统计数据的预期增加将允许进一步扩展搜索范围。学生将学习完全可用的统计数据，并开发新的基于机器学习的分析工具，从而超越迄今为止所追求的传统基于切割的分析。将特别强调在最高质量下对Drell-Yan数据的解释，这些数据也可以筛选新的接触相互作用类型。该学生将开发一种新方法来解释HERA对撞机的电子-质子数据和ATLAS的Drell-Yan数据，以获得我们对有效夸克半径的知识的世界最佳限制。除了在使用网格计算资源和先进的、最先进的基于计算机的分析工具的大ATLAS数据世界中进行必要的培训外，学生还将在MPI工作人员的领导下在cern进行介子系统操作的实践培训。该学生将为新的Run 3数据采集以及模拟数据分析做出贡献。因此，学生将得到的培训可能会导致各种职业道路，从工业数据科学家到进一步的学术生涯。该项目的主要预期结果将是发现一种新的重规玻色子。如果情况并非如此，那么计划中的新分析技术有望用于新型接触相互作用的限制，特别是世界上最好的有效夸克半径。该项目将开辟与慕尼黑MPI的新联系，慕尼黑MPI属于德国最强大的机构之一

The project covers searches for new heavy gauge bosons via lepton pairs inthe final state. This is considered as a 'golden' channel for discoveries due tothe clean signature at low background rates. The anticipated increase in thestatistics with the new LHC Run 3 will allow extending the search rangefurther. The student will study the fully available statistics and develop newmachine learning-based analysis tools going thus beyond the traditional cutbased analysis pursued so far. Particular emphasis will be given to theinterpretation of the Drell-Yan data at the highest masses which can be siftedalso for new contact interaction types. The student will develop a novelmethod of interpreting jointly electron-proton data from the HERA colliderand Drell-Yan data from ATLAS to gain world best limits on our knowledge ofan effective quark radius.Beyond the necessary training in the world of big ATLAS data using gridcomputing resources and advanced, state-of-the art computer-based analysistools, the student will get practical training with muon system operation atCERN led by MPI staff. The student will contribute to the new Run 3 datataking as well as contributions to the analysis of simulated data. Thus, thestudent will get training that may lead to a variety of career paths rangingfrom a data scientist in industry or to further academic career.The main expected outcome of the project would be a discovery of a newheavy gauge boson. If this is not the case, then the planned new analysistechniques are expected to be used for new kind of limits of contactinteractions and the world's best effective quark radius in particular.DH/Feb2019The project would open up a new link to the MPI Munich which belongs toone of the strongest institutions in Germany