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The NA48 liquid-krypton calorimeter

The NA48 experiment at CERN was primarily designed to measure the value of $\Re(\epsilon '/\epsilon)$, the parameter of direct CP- violation, from two-pion decays in simultaneous $K_{L}^{0}$ and $K_{S}^{0}$ beams produced at two different targets. Data for this measurement were taken from 1997...

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Autor principal: Jeitler, Manfred
Lenguaje:eng
Publicado: 2002
Materias:
Acceso en línea:https://dx.doi.org/10.1016/S0168-9002(02)01505-X
http://cds.cern.ch/record/623239
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author Jeitler, Manfred
author_facet Jeitler, Manfred
author_sort Jeitler, Manfred
collection CERN
description The NA48 experiment at CERN was primarily designed to measure the value of $\Re(\epsilon '/\epsilon)$, the parameter of direct CP- violation, from two-pion decays in simultaneous $K_{L}^{0}$ and $K_{S}^{0}$ beams produced at two different targets. Data for this measurement were taken from 1997 to 2001. The value obtained from the data taken in 1997-1999 is $\Re(\epsilon '/\epsilon) = (15.3 \pm 2.6) \times 10^{-4}$. The remaining data are being analyzed at present. In 2002 and the following years, rare-decay and CP-violation studies will be made in a high-intensity $K_{S}^{0}$ beam and in simultaneous beams of charged kaons, using basically the same apparatus. Photons from neutral-pion decays are detected by a liquid-krypton calorimeter. For the $\Re(\epsilon '/\epsilon)$ measurement it is very important to suppress the huge background from $K_{L}^{0} \to 3\pi^{0}$ decays, which requires very good spatial, energy and time resolution.
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language eng
publishDate 2002
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spelling cern-6232392019-09-30T06:29:59Zdoi:10.1016/S0168-9002(02)01505-Xhttp://cds.cern.ch/record/623239engJeitler, ManfredThe NA48 liquid-krypton calorimeterDetectors and Experimental TechniquesThe NA48 experiment at CERN was primarily designed to measure the value of $\Re(\epsilon '/\epsilon)$, the parameter of direct CP- violation, from two-pion decays in simultaneous $K_{L}^{0}$ and $K_{S}^{0}$ beams produced at two different targets. Data for this measurement were taken from 1997 to 2001. The value obtained from the data taken in 1997-1999 is $\Re(\epsilon '/\epsilon) = (15.3 \pm 2.6) \times 10^{-4}$. The remaining data are being analyzed at present. In 2002 and the following years, rare-decay and CP-violation studies will be made in a high-intensity $K_{S}^{0}$ beam and in simultaneous beams of charged kaons, using basically the same apparatus. Photons from neutral-pion decays are detected by a liquid-krypton calorimeter. For the $\Re(\epsilon '/\epsilon)$ measurement it is very important to suppress the huge background from $K_{L}^{0} \to 3\pi^{0}$ decays, which requires very good spatial, energy and time resolution.oai:cds.cern.ch:6232392002
spellingShingle Detectors and Experimental Techniques
Jeitler, Manfred
The NA48 liquid-krypton calorimeter
title The NA48 liquid-krypton calorimeter
title_full The NA48 liquid-krypton calorimeter
title_fullStr The NA48 liquid-krypton calorimeter
title_full_unstemmed The NA48 liquid-krypton calorimeter
title_short The NA48 liquid-krypton calorimeter
title_sort na48 liquid-krypton calorimeter
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1016/S0168-9002(02)01505-X
http://cds.cern.ch/record/623239
work_keys_str_mv AT jeitlermanfred thena48liquidkryptoncalorimeter
AT jeitlermanfred na48liquidkryptoncalorimeter