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Identification and filtering of uncharacteristic noise in the CMS hadron calorimeter


CMS Collaboration; Amsler, C; Chiochia, V; De Visscher, S (2010). Identification and filtering of uncharacteristic noise in the CMS hadron calorimeter. Journal of Instrumentation, 5(3):T03014.

Abstract

Commissioning studies of the CMS hadron calorimeter have identified sporadic uncharacteristic noise and a small number of malfunctioning calorimeter channels. Algorithms have been developed to identify and address these problems in the data. The methods have been tested on cosmic ray muon data, calorimeter noise data, and single beam data collected with CMS in 2008. The noise rejection algorithms can be applied to LHC collision data at the trigger level or in the offline analysis. The application of the algorithms at the trigger level is shown to remove 90% of noise events with fake missing transverse energy above 100 GeV, which is sufficient for the CMS physics trigger operation.

Abstract

Commissioning studies of the CMS hadron calorimeter have identified sporadic uncharacteristic noise and a small number of malfunctioning calorimeter channels. Algorithms have been developed to identify and address these problems in the data. The methods have been tested on cosmic ray muon data, calorimeter noise data, and single beam data collected with CMS in 2008. The noise rejection algorithms can be applied to LHC collision data at the trigger level or in the offline analysis. The application of the algorithms at the trigger level is shown to remove 90% of noise events with fake missing transverse energy above 100 GeV, which is sufficient for the CMS physics trigger operation.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2010
Deposited On:14 Feb 2011 15:22
Last Modified:07 Dec 2017 07:13
Publisher:Institute of Physics Publishing
ISSN:1748-0221
Publisher DOI:https://doi.org/10.1088/1748-0221/5/03/T03014
Related URLs:http://arxiv.org/abs/0911.4881

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