ATLAS Roma1 Group Activities
- Muon trigger
- The Rome1 group had a crucial role in the project and realization of the muon trigger, and is still deeply involved in the ATLAS muon trigger activities, with responsabilities on the L1 Barrel muon trigger and on several aspects of the High Level Trigger.
Detailed informations on the ATLAS trigger schema and on the muon trigger signature group can be found in the following links:
- Rome1 has been one of the sites for the assembly of the MDT chambers. Sixth-four BIL (Barrel Inner Large) chambers have been assembled in Rome1, and later on installed and commissioned in the ATLAS Muon Spectrometer. One of the three "calibration centers" devoted to the online calibration and Data Quality Checks of the MDT chambers, is located in Rome (the others are in MPI Munich and University of Michigan). The group is committed in providing calibration constants and feedback on data quality on a run-by-run basis.
- The Rome Tier-2 is used for the calibration. The links to the three splitter programs that operate the calibration are given below (a valid certificate is required to access them):
- The group is involved mainly on the search for the Standard Model Higgs boson. In particular the channel H-->ZZ-->4 leptons, one of the golden channels, has been studied in detail by the Rome group since several years. The group partecipates also to the search for the Standard Model Higgs boson in the H-->ZZ-->llqq and in the H-->bb channels, and of the MSSM Higgs boson.
- Another important sector is the search for "exotics". Among these searches, the group is involved in the search for the so called "Lepton Jets", predicted by Hidden Valley models.
- In the following links, a complete description of the ATLAS results in the different physics items is given:
- The long term LHC program is shown here. A wide upgrade program is in progress to allow ATLAS to match the requirements coming from the operation at High Luminosity.
- The forward region of the Muon Spectrometer has to be upgraded in order to maintain a sustainable trigger and tracking capability. The project will be finalised soon.
- The Rome1 group is involved in the study of the MicroMegas chambers that could be used as tracking device in the forward region of the Muon Spectrometer, and in the LEvel1 trigger that will be based on the TGC detector.