UT - a silicon strip detector for the LHCb phase I upgrade

by Dr Jianchun Wang

Wednesday 26 Jul 2017, 10:00 → 11:30 Asia/Shanghai

A419

Abstract: The LHCb experiment currently runs at a nominal luminosity of 4x10^32 cm^-2s^-1. It had collected ~5 fb-1 data in run 1 & run 2 combined, and ~5 fb^-1 more with the existing detector. To further extend the physics reach, the LHCb detector will be operated at 2x10^33 cm^-2s^-1 after the phase 1 upgrade and collect 50 fb^-1 data. Future upgrades are also in plan. In phase 1 upgrade a few sub-detectors and the whole readout system will be replaced. The upstream tracker (UT) will be part of the new tracking system, located upstream of a dipole magnet. The system consists of four silicon microstrip planes, which are read out with a custom ASIC (SALT) in the Si sensor proximity. The UT project is in a transition from the R&D phase to construction. Details of the detector design and key findings from various tests will be discussed. About the speaker: Dr Jianchun Wang received undergraduate education from USTC. He worked on the BES experiment in the 2nd half of year 1991, participated in the MDC repairing and BES data taking. He joined the L3 collaboration shortly after. There he enjoyed working with Yifang Wang & many other IHEP friends. After receiving PhD from MIT he joined the Syracuse group and continued research on the CLEO experiment. His contribution at CLEO includes the successful construction, installation and operating of a ring imaging Cherenkov (RICH) detector and the discovery of Ds(2460) particle. He was a member of the BTeV collaboration, worked on the silicon pixel detector and the RICH detector. After BTeV was terminated, he joined the LHCb collaboration, and had been active on the VELO silicon strip detector, and is currently the electronics coordinator of the UT project for the LHCb upgrade.

Slides UT_upgrade_full.pdf