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Title: Kaon Filtering For CLAS Data

Abstract

The analysis of data from CLAS is a multi-step process. After the detectors for a given running period have been calibrated, the data is processed in the so called pass-1 cooking. During the pass-1 cooking each event is reconstructed by the program a1c which finds particle tracks and computes momenta from the raw data. The results are then passed on to several data monitoring and filtering utilities. In CLAS software, a filter is a parameterless function which returns an integer indicating whether an event should be kept by that filter or not. There is a main filter program called g1-filter which controls several specific filters and outputs several files, one for each filter. These files may then be analyzed separately, allowing individuals interested in one reaction channel to work from smaller files than using the whole data set would require. There are several constraints on what the filter functions should do. Obviously, the filtered files should be as small as possible, however the filter should also not reject any events that might be used in the later analysis for which the filter was intended.

Authors:
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
774088
Report Number(s):
CLAS2001-001; DOE/ER/40150-1802
TRN: US0100845
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: 30 Jan 2001
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; KAONS; MONITORING; PARTICLE TRACKS; FILTERS

Citation Formats

McNabb, J. Kaon Filtering For CLAS Data. United States: N. p., 2001. Web. doi:10.2172/774088.
McNabb, J. Kaon Filtering For CLAS Data. United States. doi:10.2172/774088.
McNabb, J. Tue . "Kaon Filtering For CLAS Data". United States. doi:10.2172/774088. https://www.osti.gov/servlets/purl/774088.
@article{osti_774088,
title = {Kaon Filtering For CLAS Data},
author = {McNabb, J},
abstractNote = {The analysis of data from CLAS is a multi-step process. After the detectors for a given running period have been calibrated, the data is processed in the so called pass-1 cooking. During the pass-1 cooking each event is reconstructed by the program a1c which finds particle tracks and computes momenta from the raw data. The results are then passed on to several data monitoring and filtering utilities. In CLAS software, a filter is a parameterless function which returns an integer indicating whether an event should be kept by that filter or not. There is a main filter program called g1-filter which controls several specific filters and outputs several files, one for each filter. These files may then be analyzed separately, allowing individuals interested in one reaction channel to work from smaller files than using the whole data set would require. There are several constraints on what the filter functions should do. Obviously, the filtered files should be as small as possible, however the filter should also not reject any events that might be used in the later analysis for which the filter was intended.},
doi = {10.2172/774088},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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