Speaker
Description
The increased luminosity in future runs of LHC lead the experiments to cope with a higher particle flux, making the collaborations to study how to maintain full detection efficiency. For LHCb this issue involves the inner stations (R1 and R2) of the Muon system locally composed of Multi-Wire Proportional Chambers (MWPC). Indeed, at the rates expected there during run 5 and 6 (O(1 MHz/cm2)) their efficiency dramatically drops down and everything suggests substituting these devices with micro-pattern gaseous detectors.
Exploiting the legacy derived from the GEM construction for LHCb, the Detector Development Group (DDG) of LNF has proposed to replace the MWPC of the stations R1 and R2 with micro-Resistive WELL detectors. This technology offers the advantages of stability under heavy irradiation, compactness and an already ongoing transfer technology that opens the way for industrial production, an unquestionable step due to the large number of detectors needed for the apparatus (about 600).
The talk will offer a quick overview on the status of the art of the technology devoted to fulfill the requirements of LHCb collaboration: full efficiency in the bunch crossing, stability up to 1 C/cm2 integrated charge in 10 years of operations and reduction of the muon misidentification, mainly related to the development of a new dedicated front-end electronics.
| Primary experiment | LHCb |
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