Title :
Rapid 3D track reconstruction with the BABAR trigger upgrade
Author :
Felt, N. ; Bailey, S.J. ; Brandenburg, G.W. ; Fries, T. ; Harder, S. ; Morii, M. ; Oliver, J.N. ; Sinev, N.B. ; Won, E.
Author_Institution :
High Energy Phys. Lab., Harvard Univ., Cambridge, MA, USA
Abstract :
A new hardware trigger system based on tracks detected by a stereo drift chamber has been developed for the BABAR experiment at Stanford Linear Accelerator Center. The z0 pT Discriminator (ZPD) is capable of fast, 3-dimensional reconstruction of charged particle tracks, and provides rejection of background events due to beam particles interacting with the beam pipe at the first-level trigger. Over 1 gigabyte of data is processed per second by each ZPD module. Rapid track reconstruction has been realized by the use of the latest-generation FPGAs.
Keywords :
field programmable gate arrays; nuclear electronics; particle track visualisation; trigger circuits; BABAR trigger upgrade; first-level trigger; rapid 3D track reconstruction; stereo drift chamber; Data acquisition; Discrete cosine transforms; Field programmable gate arrays; Hardware; Helium; Linear accelerators; Mesons; Particle beams; Particle tracking; Physics;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2003 IEEE
Print_ISBN :
0-7803-8257-9
DOI :
10.1109/NSSMIC.2003.1351929
