Würzburg 2018 – wissenschaftliches Programm
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T: Fachverband Teilchenphysik
T 18: DAQ / Trigger I
T 18.3: Vortrag
Montag, 19. März 2018, 16:30–16:45, Z6 - SR 2.010
CMS hadron outer calorimeter — •Ashraf Mohamed1,2, Dirk Kruecker1, Kerstin Borras1,2, and Soham Bhattacharya3 — 1Deutsches Elektronen-Synchrotron, Hamburg (Germany) — 2RWTH Aachen University, Aachen (Germany) — 3Tata Institute of Fundamental Research, Mumbai (India)
The Outer Hadron Calorimeter (HO) is the outermost component of the hadronic calorimeter of the CMS experiment. It consists of additional scintillator layers just outside the magnetic cryostat originally designed to improve the measurement of high energetic jets. Due to its radial position just in front of the barrel Muon system it can able to support the Muon trigger. After an upgrade during the years 2013 to 2015 the necessary trigger signals are available at the Muon L1 trigger. We study the possible improvements for the Muon trigger with respect to efficiencies and rates. The HO allows to mitigate the efficiency drop in some gap regions of the Muon system and it can improve the estimation of the muon transverse momentum within the L1 trigger. Furthermore, we study it usefulness as a fallback system for the Muon Drift Tubes based trigger and we give an outlook for the planned upgrade of the HO electronics from the present VME to the new microTCA standard.