A Level-1 Tau Trigger for CMS at HL-LHC
Date du début: 1 mars 2014,
Date de fin: 29 févr. 2016
The leading scientific breakthrough of 2012 came from the Large Hadron Collider (LHC) experiments, which provided evidence for the existence of a Higgs boson in the mass region of ~126 GeVc-2. This discovery, made by the ATLAS and CMS Experiments at CERN, has finally brought the High-Energy Physics community to the Higgs Era. In order to build on this discovery, the LHC is planning for an immensely exciting science programme known as the high-luminosity upgrade (HL-LHC). The HL-LHC is planned for the early 2020's and provides an unparalleled scientific opportunity for exploring the high-energy frontier for new physics. With upgrades to the injector chain and to the LHC itself, performance is expected to press for higher instantaneous luminosities and finally reach ~5E34cm-2s-1. To keep up with this without sacrificing physics, CMS plans to replace the central tracker for HL-LHC, allowing the opportunity for a new Track-Trigger, a conceptual design for which is currently being developed. This proposal aims to contributing to the rich HL-LHC physics program by developing innovative techniques for selecting tau-jets with CMS. The first objective is to develop a new Level-1 Tau Trigger algorithm that will fully exploit the increased Calorimeter granularity and, for the first time in CMS, information from the Tracker. This algorithm will be able to efficiently select tau-jets with high efficiency and low rates, while also providing large discriminating power against the background. The second object is to test this trigger in various scenarios in order to assess and improve its performance. The third objective is to employ this Level-1 Tau Trigger algorithm in producing physics output that will accommodate various analyses during the HL-LHC programme, and will be fully documented in the CMS HL-LHC Technical Design Report (TDR). Finally, the fourth objective is the dissemination of results to the scientific community and the general public through various activities.
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