Conveners
Gaseous Detectors
- Dmitri Denisov (Brookhaven National Laboratiry)
Resistive Plate Chambers (RPCs) are widely used in particle physics applications, including the CERN LHC experiments. RPCs are often operated with a gas mixture containing C2H2F4 and SF6, both greenhouse gases (GHGs) with a high global warming potential (GWP). The reduction of GHG emissions and the search for eco-friendly alternatives are crucial for use of RPCs in future since F-gases are...
In this presentation we report the performance of the Resistive Plate Chambers (RPC) working with new eco-friendly gases which are intended to replace the traditional standard mixture($C_{2}H_{2}F_{4}/i-C_{4}H_{10}/SF_{6}$). The new gaseous components have Global Warming Potential (GWP) and Ozone Depletion Potential (ODP) both at very low or null level. Indeed the $C_{2}H_{2}F_{4}$ (GWP~1430)...
A recently approved ten-year extension of the BESIII experiment (IHEP, Beijing) motivated an upgrade program for both the accelerator and the detector. In particular, the current inner drift chamber is suffering from aging and the proposal is to replace it with a detector based on the cylindrical GEM technology.
The CGEM inner tracker consists of three coaxial layers of triple GEM. The...
The COMET experiment at J-PARC aims to search for a lepton-flavour violating process of muon to electron conversion, with a branching-ratio sensitivity of 10$^{−17}$, to explore the region predicted by most of theoretical models beyond the Standard Model. The expected signal of this process is mono-energetic 105 MeV single electron. To distinguish such a low energy signal, a material budget of...
