New Applicant Grant

大型强子对撞机发现的希格斯玻色子可能表明存在不止一个。我们最流行的暗物质理论，超对称理论，预测了5个希格斯玻色子的存在，寻找另一个希格斯玻色子现在是一个非常重要的任务。这在2015年尤为及时，因为大型强子对撞机以（或接近）其设计能量重新启动意味着重物体将比以前更容易产生。因此，这是寻找新的更重的希格斯玻色子的绝佳机会。在超对称中，这种粒子最可能的衰变模式是变成成对的“tau”轻子。沃里克在研究第一个希格斯玻色子和这些粒子方面有很多专业知识，很自然地，我们试图将我们的研究扩展到一个可能更重的粒子。增加的LHC束流能量可能会产生其他重粒子。例如，华威大学的一名学生正准备寻找一种新的重玻色子（W'），类似于弱核力的W玻色子。他的研究包括这种玻色子衰变为普通W玻色子和z玻色子。这笔拨款应该允许我们将研究范围扩大到W玻色子和希格斯玻色子的衰变，这两种玻色子都衰变为“喷流”。这一模式目前还没有在ATLAS上进行研究，但应该是高质量W'的最敏感模式。我们不知道这些可能性是否真的发生了，但我们只能通过观察来找到答案。

The discovery of a Higgs boson at LHC could indicate that there is more than one.Our most popular theory for Dark Matter, supersymmetry, predicts the existenceof 5 Higgs bosons, and searching for another is now a very high priority. This is particularly timely in 2015 as the restart of the LHC at (or close to) is design energy means that heavy objects will be produced much more easily than before. There is thereforean excellent opportunity to look for new heavier Higgs bosons. In supersymmetry the most likely decay mode of such a particle is into pairs of 'tau' leptons. Warwick has alot of expertise in the study of the first Higgs boson to these particles, and it is natural totry to extend our studies to a possible heavier particle. The increased LHC beam energy might produce other heavy particles. For example aWarwick student is preparing to search for a new heavy boson (W') resembling the W boson of the weak nuclear force. His studies include this boson decaying into an ordinary W bosonand a Z. This grant should allow us to extend that search to also cover decay to a W and aHiggs, with both of these decaying into 'jets'. This is not currently studied in ATLAS butshould be the most sensitive mode for a high-mass W' Whether either of these possibilities really occurr we do not know - but we canonly find out by looking.