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Recent results of the NA48/2 experiment

NA48/2 collected the wolrd largest sample of K± --+ 7r±7ro'Y decays. Direct Emission (DE) and Interference (INT) fractions with respect to the internal bremsstrahlung (IB) have been measured in the range 0 < T; < 80 MeV: FracnE(O < T; < 80 MeV) = (3.32 ± 0.15sta ± 0.14sys) X 10-2 Fr...

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Autor principal: Raggi, Mauro
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/2267152
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author Raggi, Mauro
author_facet Raggi, Mauro
author_sort Raggi, Mauro
collection CERN
description NA48/2 collected the wolrd largest sample of K± --+ 7r±7ro'Y decays. Direct Emission (DE) and Interference (INT) fractions with respect to the internal bremsstrahlung (IB) have been measured in the range 0 < T; < 80 MeV: FracnE(O < T; < 80 MeV) = (3.32 ± 0.15sta ± 0.14sys) X 10-2 Frac1NT(O < T; < 80 MeV) = -(2.35 ± 0.35sta ± 0.39sys) X 10-2 where T; is the kinetic energy of the charged pion in the kaon rest frame. A sample of 7253 K± --+ 7r±e+ e- decay candidates has been collected by the NA48/2 experiment. The branching ratio in the full kinematic range was measured to be BR = (3.11 ± 0.12) · 10-1. For both decays CP violating asymmetry has been studied.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling oai-inspirehep.net-8801022019-09-30T06:29:59Zhttp://cds.cern.ch/record/2267152engRaggi, MauroRecent results of the NA48/2 experimentParticle Physics - ExperimentNA48/2 collected the wolrd largest sample of K± --+ 7r±7ro'Y decays. Direct Emission (DE) and Interference (INT) fractions with respect to the internal bremsstrahlung (IB) have been measured in the range 0 < T; < 80 MeV: FracnE(O < T; < 80 MeV) = (3.32 ± 0.15sta ± 0.14sys) X 10-2 Frac1NT(O < T; < 80 MeV) = -(2.35 ± 0.35sta ± 0.39sys) X 10-2 where T; is the kinetic energy of the charged pion in the kaon rest frame. A sample of 7253 K± --+ 7r±e+ e- decay candidates has been collected by the NA48/2 experiment. The branching ratio in the full kinematic range was measured to be BR = (3.11 ± 0.12) · 10-1. For both decays CP violating asymmetry has been studied.oai:inspirehep.net:8801022009
spellingShingle Particle Physics - Experiment
Raggi, Mauro
Recent results of the NA48/2 experiment
title Recent results of the NA48/2 experiment
title_full Recent results of the NA48/2 experiment
title_fullStr Recent results of the NA48/2 experiment
title_full_unstemmed Recent results of the NA48/2 experiment
title_short Recent results of the NA48/2 experiment
title_sort recent results of the na48/2 experiment
topic Particle Physics - Experiment
url http://cds.cern.ch/record/2267152
work_keys_str_mv AT raggimauro recentresultsofthena482experiment