The D0 Run II Impact Parameter Trigger

T. Adams; Q. An; K. M. Black; T. Bose; N. J. Buchanan; S. Caron; D. K. Cho; S. Choi; A. Das; M. Das; H. Dong; W. Earle; H. Evans; S. N. Fatakia; L. Feligioni; T. Fitzpatrick; E. Hazen; U. Heintz; K. Herner; J. D. Hobbs; D. Khatidze; W. M. Lee; S. L. Linn; M. Narain; C. Pancake; N. Parashar; E. Popkov; H. B. Prosper; G. Redner; M. P. Sanders; S. Sengupta; B. Smart; L. Sonnenschein; G. Steinbruck; W. Taylor; S. Ansermet-Tentindo; H. D. Wahl; T. Wijnen; J. Wittlin; J. Wu; S. X. Wu; A. Zabi; J. Zhu

arXiv · physics/0701195

The D0 Run II Impact Parameter Trigger

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Abstract

Many physics topics to be studied by the D0 experiment during Run II of the Fermilab Tevatron ppbar collider give rise to final states containing b--flavored particles. Examples include Higgs searches, top quark production and decay studies, and full reconstruction of B decays. The sensitivity to such modes has been significantly enhanced by the installation of a silicon based vertex detector as part of the DO detector upgrade for Run II. Interesting events must be identified initially in 100-200 microseconds to be available for later study. This paper describes custom electronics used in the DO trigger system to provide the real--time identification of events having tracks consistent with the decay of b--flavored particles.

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T. Adams, Q. An, K. M. Black, T. Bose, N. J. Buchanan, S. Caron, D. K. Cho, S. Choi, A. Das, M. Das, H. Dong, W. Earle, H. Evans, S. N. Fatakia, L. Feligioni, T. Fitzpatrick, E. Hazen, U. Heintz, K. Herner, J. D. Hobbs, D. Khatidze, W. M. Lee, S. L. Linn, M. Narain, C. Pancake, N. Parashar, E. Popkov, H. B. Prosper, G. Redner, M. P. Sanders, S. Sengupta, B. Smart, L. Sonnenschein, G. Steinbruck, W. Taylor, S. Ansermet-Tentindo, H. D. Wahl, T. Wijnen, J. Wittlin, J. Wu, S. X. Wu, A. Zabi, J. Zhu. 2007-01-17. The D0 Run II Impact Parameter Trigger. https://arxiv.org/abs/physics/0701195

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