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A real-time tracker for hadronic collider experiments

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8 Author(s)
Bardi, A. ; Ist. Nazionale di Fisica Nucl., Pisa, Italy ; Belforte, S. ; Dell'Orso, M. ; Galeotti, S.
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In this paper we propose highly parallel dedicated processors, able to provide precise on-line track reconstruction for future hadronic collider experiments. The processors, organized in a 2-level pipelined architecture, execute very fast algorithms based on the use of a large bank of pre-stored patterns of trajectory points. An associative memory implements the first stage by recognizing track candidates at low resolution to match the demanding task of tracking at the detector readout rate. Alternative technological implementations for the associative memory are compared. The second stage receives track candidates and high resolution hits to refine pattern recognition at the associative memory output rate. A parallel and pipelined hardware implements a binary search strategy inside a hierarchically structured pattern bank, stored in high density commercial RAMs

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Nuclear Science, IEEE Transactions on  (Volume:46 ,  Issue: 4 )