Possible modification of level 1 trigger of the CDF muon system at increased Tevatron luminosity |
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Authors: | A Artikov G Chlachidze D Chokheli C Bromberg |
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Institution: | (1) Joint Institute for Nuclear Research, Dubna, Russia;(2) Samarkand State University, Samarkand, Uzbekistan;(3) Tbilisi State University, Tbilisi, Georgia;(4) University of Michigan, Ann Arbor, USA |
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Abstract: | The increase in the Tevatron (FNAL) luminosity up to ≥ 2.0 × 1032 cm?2 s?1 and the level 1 (L1) trigger rate limitation resulted in tougher event selection conditions at CDF II; this led, in particular, to elimination from L1 muon trigger data from muon detectors in the pseudorapidity interval 1 < |η| < 1.25. A new muon trigger is proposed and investigated; this trigger includes signals from an additional layer of scintillation counters in the above η interval. The modified L1 muon trigger provides an acceptable for CDF II rate of lower than 1 kHz. |
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