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A 40 MHz-pipelined trigger for K-0 -> 2 pi(0) decays for the CERN NA48 experiment

Abstract:

The "neutral" trigger system for the selection of K-o --> 2 pi(o) --> 4 gamma decays of the NA48 CP-violation experiment is described. The trigger system has been implemented in a 40 MHz "dead-time free" pipeline to allow large rate reduction and high-trigger efficiency. The trigger decision is based on the information from 13340 cells of the electro-magnetic calorimeter. Every 25 ns the energy, the centre of gravity, the kaon lifetime and the number of peaks in calorimeter projections ...

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Publication status:
Published

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Authors


Fischer, G More by this author
Avanzini, C More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Particle Physics
Calafiura, P More by this author
Cirilli, M More by this author
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Volume:
419
Issue:
2-3
Pages:
695-700
Publication date:
1998-12-21
DOI:
ISSN:
0168-9002
URN:
uuid:5b380bb1-da92-4945-ad5f-79ae68c5c70d
Source identifiers:
25691
Local pid:
pubs:25691

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