Event date:
Sep 24 2021 3:00 pm

The CMS Outer Tracker Phase II Upgrade Program and Innovative Silicon Tracking Detectors

Dr. Ashfaq Ahmad
The High Luminosity (HL) or Phase 2 upgrade of the LHC is planned from 2025 onward for about two years to improve the physics potential for rare standard model and beyond the standard model searches. As part of the HL-LHC, the CMS experiment is preparing for major upgrades of its sub-detectors. The talk will cover the physics motivation behind the HL-LHC upgrade and will briefly introduce the technological choices made for upgrading the CMS Outer Tracker during the Phase 2. The projected performance of CMS Phase 2 Tracker and its impact on physics searches will be reviewed. In the context of particle tracking, the concept of silicon pT modules and the stringent constraints on sensor alignment will be discussed. An overview of the semiconductor detector laboratory developed at NCP and the setups for silicon sensor qualification, silicon module assembly, module metrology and testing will be presented.


Dr. Ashfaq Ahmad, Director Experimental High Energy Physics, National center for Physics


Dr. Ashfaq Ahmad did his PhD in Experimental High Energy Physics on Atlas experiment at the University of Freiburg in Germany in February 2004. After that, at CERN, he worked on Atlas experiment for Academia Sinica Taiwan for a period of three years. From early 2007 till September 2012, he worked as research scientist at Stony Brook University. Since October 2012, he has been working on CMS experiment at NCP/Islamabad and was appointed as Director Experimental High Energy Physics Department in 2014. Dr. Ashfaq has been convener of the CMS single top quark physics group, convener of the electron/photon calibration group on Atlas experiment during the Higgs discovery era and member of the CMS Conference Committee. Currently, he is member of the CMS Theses Committee, member of the CMS Silicon Sensor Expert Panel and member of the CMS Tracker Upgrade Steering Group. For the benefit of young researchers, he has been regularly organizing particle physics activities in Pakistan and abroad such as School on LHC Physics and AEPSHEP (Asia-Europe-Pacific School of High-Energy Physics).

ZOOM Link: https://lums-edu-pk.zoom.us/j/97438320644