The Data-Acquisition System with Cluster-Finding Trigger at the J-PARC KOTO Experiment
Journal
Journal of Physics: Conference Series
Journal Volume
1526
Journal Issue
1
Date Issued
2020
Author(s)
Lin C., Hsiung Y.B., Wah Y.W., Tung Y.C., Luo Y.T., Bogdan M.
Abstract
In order to collect the events efficiently with a high intensity beam, we built a new trigger electronics system based on the calibrated energy information and the number of electromagnetic shower clusters in the calorimeter for the J-PARC KOTO experiment. The dead time of this system is 0.16 s and the loss was measured to be less than 1%. By performing the online clustering algorithm on the simulated data, the trigger efficiency for the primary mode IMG ALIGN="MIDDLE" ALT="${K}-{L}\to {\pi } {0}\nu \bar{\nu }$" SRC="JPCS-1526-1-012034-ieqn1.gif" is estimated to be 99.6%. ? Published under licence by IOP Publishing Ltd.
Subjects
Clustering algorithms; Hadrons; Data acquisition system; Dead time; Electro-magnetic showers; Energy information; High intensity beam; Trigger efficiencies; Trigger electronics; Data acquisition
SDGs
Type
conference paper