Speaker
Description
LHCb plans an Upgrade II detector for 2035 to operate at luminosities of $1.0\times10^{34}cm^{-2}s^{-1}$, accumulating over 300 fb$^{-1}$. This will result in about 30 interactions per crossing, producing approximately 1500 charged particles within acceptance.
The higher luminosity requires an enhanced VErtex LOcator (VELO) to handle increased occupancies and radiation. New techniques will assign b hadrons to their origin vertices and perform real-time pattern recognition, involving a new 4D hybrid pixel detector with advanced rate and timing capabilities.
Prototype front-end ASICs are under design in 28nm technology, including large processing power and rapid analog response, which requires fast rise times and high power consumption, yet limited by vacuum operation and cooling constraints. The ASIC must handle extreme hit rates and added timing information. The sensor must provide time measurements with 35ps resolution and resist high fluence while keeping the and spatial resolution below 10 µm.
The mechanical design will minimize material and achieve an integrated module with thinned sensors and ASICs combined with lightweight cooling.
This presentation will highlight promising technologies for the LHCb upgrade, emphasizing on timing precision for vertexing in next-generation detectors. Recent beam test results on time measurements and R\&D of new sensor technologies will be presented.
| I read the instructions above | Yes |
|---|