The muon pretrigger system of the HERA-B experiment

Author

Adams, M. ; Buchholz, P. ; Cruse, C. ; Koch, N. ; Kolander, M. ; Kolotaev, I. ; Riege, H. ; Schütt, J. ; Schwenninger, B. ; van Staa, R. ; Wegener, D.

Author_Institution

Inst. fur Phys., Dortmund Univ., Germany

Volume

1

fYear

1998

fDate

1998

Firstpage

266

Abstract

This paper describes the muon pretrigger system of the HERA-B experiment. The muon pretrigger is designed to detect track candidates for muons in order to generate seeds for the first level trigger (FLT) search algorithm. Muons provide the cleanest event signature in the large amount of hadronic background. In order to achieve the required precision the muon pretrigger system has to cope with an interaction rate of about 40 MHz at the HERA bunch crossing rate of 10.4 MHz. This results in a total input data rate of about 10 Gbyte/s. A total rate reduction by a factor of 200 is aimed at by the complete FLT, including the pretrigger systems (electromagnetic calorimeter, muon and high-p_T), within at most 12 μs

Keywords

muon detection; nuclear electronics; trigger circuits; HERA-B experiment; electromagnetic calorimeter; first level trigger search algorithm; muon pretrigger system; Algorithm design and analysis; Cathodes; Detectors; Electrons; Mesons; Particle beams; Physics; Protons; Target tracking; Wire;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium, 1998. Conference Record. 1998 IEEE

Conference_Location

Toronto, Ont.

ISSN

1082-3654

Print_ISBN

0-7803-5021-9

Type

conf

DOI

10.1109/NSSMIC.1998.775143

Filename

775143