Abstract:
The LHC Phase II upgrade will lead to a significant increase in luminosity in year 2024, to pursue the ambitious physics goals of the LHC program (Higgs boson characterization, Beyond the Standard Model physics, etc…). Operating at a nominal leveled instantaneous luminosity of 7.5×1034 cm-2s-1 will be a challenge for the detectors and in particular for ATLAS innermost tracker. The new Phase II tracker requires enhanced granularity, reduced material budget and increased radiation hardness to all components. In this talk, I will introduce the general context of the ATLAS Phase II program focusing on the Phase II Inner Tracker upgrade (“ITk project”), and new electronics developments in particular. A new technology called Depleted-MAPS (“Dep-MAPS”, also known as “HV/HR CMOS”) could bring some very interesting benefits in the design of the ITk. An international collaboration studies this new concept with the involvement of various vendors. In parallel, a readout-chip (“ROC”) for hybrid pixel detectors is developed in the framework of CERN’s RD53, an ATLAS/CMS pixel collaboration studying small size electronics for CERN’s experiments phase II upgrade.
报告人简介：Marlon Barbero studied in France and in California, then obtained his PhD at the Paul Scherrer Institute working with Roland Horisberger, leader of the CMS pixel detector in 2003. After a post-doc on the Belle experiment working on a Monolithic Active Pixel Sensor, he became in 2007 assistant professor at the University of Bonn (Professor Norbert Wermes group), Germany, and involved on the ATLAS experiment. He has been since 2012 professor for physics at the University of Aix-Marseilles / CPPM , France, still working on the ATLAS experiment, and leads the ATLAS pixel group in CPPM.