Speaker
Description
Now there are several colliding beam experiments proposed for realisation in a future all around the world. Among them are hadron colliding beam experiment SPD at NICA (JINR, Dubna, Russia)[1], electron-positron colliding beam experiments SCTF (Sarov, Russia)[2], STCF (Hefei, China), CEPC (China)[3], and electron-ion colliding experiment EicC (Huizhou, Guangdong, China) [4]. The construction of an universal detectors for every one of these experiments are presumed. The particle identification system is the natural part of each these universal detectors. The aerogel based Cherenkov detectors are able to provide excellent particle separation in wide momentum range. For some of these experiments like SPD or EicC only pi/K-separation up to high momentum range is required for other such like SCTF the mu/pi-separation up to 1.5 GeV/c. To satisfy these requirements to PID system several RICH detector concepts based on aerogel Cherenkov radiators are under consideration. The recent progress in aerogel Cherenkov radiators production in Novosibirsk is presented. Evaluations of expected performances for several RICH concepts like FARICH or mRICH based on Novosibirsk aerogel is given. For the first time direct comparison of aerogels produced in Novosibirsk and in China performed with help of optical measurements and beam tests as well. The new concept of RICH detector based on aerogel fibres produced in SINANO is proposed. Some peculiarities of this concept and results obtained with help of MC simulation are discussed too.
[1] http://spd.jinr.ru
[2] https://sct.inp.nsk.su
[3] http://cepc.ihep.ac.cn
[4] https://indico.pnp.ustc.edu.cn/event/1191/overview
