Сессия Ученого Совета ОФВЭ, 29 декабря 2005 Проект CMS в 2005 Ю.М.Иванов

ПИЯФ в CMS В проект вовлечены Лаборатория физики элементарных частиц ОФВЭ Лаборатория мезоатомов ОФВЭ Группа экзотических ядер ОФВЭ Отдел мюонных камер ОФВЭ Отдел радиоэлектроники ОФВЭ Отдел вычислительных систем ОФВЭ

Направления работы в 2005 Тестирование мюонных камер в CERN (ISR, SX5) Cборка Торцевой Мюонной Системы в CERN (SX5) Тестирование электроники (ISR, bld. 904) Участие в работе физической группы RDMS

End-Cap Muon System 468 CSCs, not counting ME4/2 144 Large CSCs (3.4x1.5 m 2 ): 72 ME2/2 chambers 72 ME3/2 chambers Small CSCs (1.8x1.1 m 2 ): 72 ME1/2 chambers 72 ME1/3 chambers 72 ME1/1 chambers 20 o CSCs (1.9x1.5 m 2 ): 36 ME2/1 chambers 36 ME3/1 chambers 36 ME4/1 chambers Frontend Electronics: 170K Cathode channels 140K Anode channels Trigger&DAQ (on-chamber part) Alignment&Services

CSC production CSC production is finished All CSCs are at CERN CSC type Built FAST site CERN ME23/2 (US) 150/ ME2/1 (PNPI) 40/ ME3/1 (PNPI) 40/ ME4/1 (PNPI) 40/ ME1/1 (Dubna) 76/ ME1/2 (Beijing) 75/ ME1/3 (Beijing) 75/ totals 496/ / /468 (106%) (104%) (106%)

EMU Project Status, November 2005 CSC chamber production 496/ % On-chamber electronics 110% FAST sites (testing w electronics) 487/ % CSCs shipped to CERN 495/ % CSCs installed 360/468 77% CSCs commissioned 352 /468 75% Most of off-chamber electronics & HV production done To be finished in beginning 2006 System integration in progress, including integration with Trigger, DAQ, DCS, DQM… Recent slice test results: CSCs self-triggering working, calibration and synchronization procedures developed, data sent to global DAQ, muon tracks going through two stations registered Preparations for Cosmic Challenge in progress

CSC Installation (Nov 05) Installed chambers and services (w/o ME1/1) Mounting posts 720/792 91% CSC chambers 288/396 73% Skewclear cables 3672/ % LVMB (LV monitor) cables 306/396 77% HV cables (1 per CSC) 288/396 73% LV cables (1 per CSC) 279/396 71% Grounding braids (1 per CSC) 270/396 68% Gas laterals (per CSC) 216/396 59% Water laterals (per CSC) 216/396 55% All 72 ME1/1 chambers installed and tested CSC installation is ~77% complete

ISR Testing Area

CSCs Transprortation to SX5

Перед восхождением на диск

Installation under YE1 nose

Completed ME+1/2 Station

YE-1 completed 15 August, 2005 YE+1 completed 3 October, 2005 Installation of ME1/1 chambers 72 chambers installed and tested

CSC Commissioning Use the same equipment and software (FAST-DAQ) as in production FAST sites CSC commissioning closely follows installation 288 CSC installed, 280 CSCs commissioned Frequent retests: At least every 3 months Takes care of infant mortality Long term stability Only minor problems detected

Future CSC Installation plans Plan to instal 18 Back ME-1/2 in Dec 05 Install 18 front ME -1/2 Jan 06 Install 36 +1/3 CSCs in February 2006 Install 36 -1/3 CSCs after the magnet test Note: All ME1/3 CSC can be installed only after corresponding RPCs are installed. CSC installation is in good shape, will be finished on schedule

RDMS CMS Task Force: PNPI group MC event generator HARDPING: BFKL-evolution Diffraction physics Heavy-ion physics

RDMS CMS Task Force: PNPI group BFKL-evolution: jets/dijets, b-quark production SM/QCD background New Physics: Quantum Gravity (Graviton/Pomeron) Diffraction physics: dijets, b-jets in DPE- and SPE-processes SM/QCD background New Physics: Higgs, SUSY Higgs Heavy-ion physics: hadron-nucleus, nucleus-nucleus collisions jets, lepton-pair production Physics: multiple rescattering, color stopping, screening, etc.