Use of Hadronic Calorimetry Information in the ATLAS Level-1 Muon Trigger

Author

Ciodaro, T. ; de Seixas, Jose Manoel ; Cerqueira, Augusto

Author_Institution

Signal Process. Lab., Fed. Univ. of Rio de Janeiro, Rio de Janeiro, Brazil

Volume

61

Issue

2

fYear

2014

fDate

Apr-14

Firstpage

1047

Lastpage

1055

Abstract

The ATLAS Tile hadronic calorimeter (TileCal) provides highly-segmented energy measurements for incident particles. Information from TileCal´s last radial layer can assist in muon tagging and has been considered for inclusion in an upgraded Level-1 trigger. It can assist in the rejection of fake muon triggers arising from background radiation without degrading the efficiency of the trigger. This paper addresses the additional muon discrimination obtained by using a new receiver for the TileCal signals which interfaces with the current ATLAS Level-1 muon trigger. The design and performance of the receiver are also described.

Keywords

muon detection; particle calorimetry; position sensitive particle detectors; ATLAS level-1 muon trigger; TileCal signals; background radiation; hadronic calorimetry information; muon discrimination; muon tagging; radial layer; Detectors; Energy measurement; Mesons; Receivers; Signal to noise ratio; Digital signal processors; high energy physics instrumentation computing; matched filters; signal detection; signal-to-noise ratio;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2014.2305989

Filename

6782463