New Preshower detector for DIRAC Experiment

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The Preshower (PSh) detector is a component of the DIRAC setup. It is designed to improve rejection efficiency of e-e+ pairs background in the {\pi}{\pi} and K{\pi} pair measurement. To increase the overall efficiency, a new two-layer structure scintillator Preshower detector has been realized in th...

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Autores principales: Pentia, M., Aogaki, S., Dumitriu, D., Fluerasu, D., Gugiu, M., Yazkov, V.
Lenguaje:eng
Publicado: 2014
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1016/j.nima.2015.06.003
http://cds.cern.ch/record/1750834
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author Pentia, M.
Aogaki, S.
Dumitriu, D.
Fluerasu, D.
Gugiu, M.
Yazkov, V.
author_facet Pentia, M.
Aogaki, S.
Dumitriu, D.
Fluerasu, D.
Gugiu, M.
Yazkov, V.
author_sort Pentia, M.
collection CERN
description The Preshower (PSh) detector is a component of the DIRAC setup. It is designed to improve rejection efficiency of e-e+ pairs background in the {\pi}{\pi} and K{\pi} pair measurement. To increase the overall efficiency, a new two-layer structure scintillator Preshower detector has been realized in the region where the Nitrogen Cherenkov detector has been shortened to introduce new detectors. The new Preshower-Cherenkov combination ensures the electron rejection efficiency better than 99.9% in momentum region 1-7 GeV/c.
id cern-1750834
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2014
record_format invenio
spelling cern-17508342023-03-14T19:39:00Zdoi:10.1016/j.nima.2015.06.003http://cds.cern.ch/record/1750834engPentia, M.Aogaki, S.Dumitriu, D.Fluerasu, D.Gugiu, M.Yazkov, V.New Preshower detector for DIRAC ExperimentDetectors and Experimental TechniquesThe Preshower (PSh) detector is a component of the DIRAC setup. It is designed to improve rejection efficiency of e-e+ pairs background in the {\pi}{\pi} and K{\pi} pair measurement. To increase the overall efficiency, a new two-layer structure scintillator Preshower detector has been realized in the region where the Nitrogen Cherenkov detector has been shortened to introduce new detectors. The new Preshower-Cherenkov combination ensures the electron rejection efficiency better than 99.9% in momentum region 1-7 GeV/c.The Preshower (PSh) detector [1] is a component of the DIRAC setup [2] . It is designed to identify and reject the huge e − e + pairs background in the ππ and Kπ pairs measurement produced in a hadronic atom ionization process. In the high energy region used for kaon detection, the small Nitrogen Cherenkov detector has low electron rejection efficiency. To increase the overall efficiency, a new two-layer scintillator Preshower detector has been developed and built. The new Preshower–Cherenkov combination ensures an electron rejection efficiency better than 99% in the momentum range 1–7 GeV/c.The Preshower (PSh) detector is a component of the DIRAC setup. It is designed to improve rejection efficiency of e-e+ pairs background in the {\pi}{\pi} and K{\pi} pair measurement. To increase the overall efficiency, a new two-layer structure scintillator Preshower detector has been realized in the region where the Nitrogen Cherenkov detector has been shortened to introduce new detectors. The new Preshower-Cherenkov combination ensures the electron rejection efficiency better than 99.9% in momentum region 1-7 GeV/c.arXiv:1408.4246DIRAC-PUB-2015-01oai:cds.cern.ch:17508342014-08-19
spellingShingle Detectors and Experimental Techniques
Pentia, M.
Aogaki, S.
Dumitriu, D.
Fluerasu, D.
Gugiu, M.
Yazkov, V.
New Preshower detector for DIRAC Experiment
title New Preshower detector for DIRAC Experiment
title_full New Preshower detector for DIRAC Experiment
title_fullStr New Preshower detector for DIRAC Experiment
title_full_unstemmed New Preshower detector for DIRAC Experiment
title_short New Preshower detector for DIRAC Experiment
title_sort new preshower detector for dirac experiment
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/j.nima.2015.06.003
http://cds.cern.ch/record/1750834
work_keys_str_mv AT pentiam newpreshowerdetectorfordiracexperiment
AT aogakis newpreshowerdetectorfordiracexperiment
AT dumitriud newpreshowerdetectorfordiracexperiment
AT fluerasud newpreshowerdetectorfordiracexperiment
AT gugium newpreshowerdetectorfordiracexperiment
AT yazkovv newpreshowerdetectorfordiracexperiment

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