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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Original Russian Text © A. Artikov, G. Chlachidze, D. Chokheli, C. Bromberg, 2008, published in Pis’ma v Zhurnal Fizika Elementarnykh Chastits i Atomnogo Yadra, 2008, No. 2 (144), pp. 171–188.
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Artikov, A., Chlachidze, G., Chokheli, D. et al. Possible modification of level 1 trigger of the CDF muon system at increased Tevatron luminosity. Phys. Part. Nuclei Lett. 5, 94–106 (2008). https://doi.org/10.1134/S1547477108020076
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DOI: https://doi.org/10.1134/S1547477108020076