Karlsruhe 2011 – scientific programme

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T: Fachverband Teilchenphysik

T 67: Kalorimeter I

T 67.5: Talk

Wednesday, March 30, 2011, 17:45–18:00, 30.23: 2-0

First operational experience and measurements with the CASTOR calorimeter in proton-proton and heavy-ion collisions at the LHC — Alan Campbell, Igor Katkov, •Panagiotis Katsas, Ekaterina Kuznetsova, and Dmytro Volyanskyy — DESY, Hamburg

The CASTOR Calorimeter at the CMS experiment covers the very forward region of the detector (-6.6<η<-5.2). CASTOR is a Čerenkov sampling calorimeter, consisting of quartz and tungsten plates, with an overall depth of 10 interaction lengths. It is segmented in 16 transversal and 14 longitudinal sections. Surrounding the beam pipe, its design is determined by space constraints and restricted to materials which tolerate a high radiation level. Initial performance studies of the calorimeter were performed with test beam measurements. In this presentation we report on the first operational experience and measurements with the CASTOR calorimeter during the 2010 data taking at the LHC, with proton-proton and heavy ion collisions. An overview of the broad physics program which can be accessed with CASTOR, as well as the status of ongoing physics analyses are presented.