New Applicant Grant

点击翻译按钮获取中文摘要

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.