dorsal/arxiv
View SchemaA 3-D Track-Finding Processor for the CMS Level-1 Muon Trigger
| Authors | D. Acosta, V. Golovtsov, M. Kan, A. Madorsky, B. Scurlock, H. Stoeck, L. Uvarov, S. M. Wang |
|---|---|
| Categories | |
| ArXiv ID | physics/0306117 |
| URL | https://arxiv.org/abs/physics/0306117 |
Abstract
We report on the design and test results of a prototype processor for the CMS Level-1 trigger that performs 3-D track reconstruction and measurement from data recorded by the cathode strip chambers of the endcap muon system. The tracking algorithms are written in C++ using a class library we developed that facilitates automatic conversion to Verilog. The code is synthesized into firmware for field-programmable gate-arrays from the Xilinx Virtex-II series. A second-generation prototype has been developed and is currently under test. It performs regional track-finding in a 60 degree azimuthal sector and accepts 3 GB/s of input data synchronously with the 40 MHz beam crossing frequency. The latency of the track-finding algorithms is expected to be 250 ns, including geometrical alignment correction of incoming track segments and a final momentum assignment based on the muon trajectory in the non-uniform magnetic field in the CMS endcaps.
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"abstract": "We report on the design and test results of a prototype processor for the CMS\nLevel-1 trigger that performs 3-D track reconstruction and measurement from\ndata recorded by the cathode strip chambers of the endcap muon system. The\ntracking algorithms are written in C++ using a class library we developed that\nfacilitates automatic conversion to Verilog. The code is synthesized into\nfirmware for field-programmable gate-arrays from the Xilinx Virtex-II series. A\nsecond-generation prototype has been developed and is currently under test. It\nperforms regional track-finding in a 60 degree azimuthal sector and accepts 3\nGB/s of input data synchronously with the 40 MHz beam crossing frequency. The\nlatency of the track-finding algorithms is expected to be 250 ns, including\ngeometrical alignment correction of incoming track segments and a final\nmomentum assignment based on the muon trajectory in the non-uniform magnetic\nfield in the CMS endcaps.",
"arxiv_id": "physics/0306117",
"authors": [
"D. Acosta",
"V. Golovtsov",
"M. Kan",
"A. Madorsky",
"B. Scurlock",
"H. Stoeck",
"L. Uvarov",
"S. M. Wang"
],
"categories": [
"physics.ins-det"
],
"title": "A 3-D Track-Finding Processor for the CMS Level-1 Muon Trigger",
"url": "https://arxiv.org/abs/physics/0306117"
},
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"variant": "snapshot-2026-03-01",
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