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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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Lenguaje: | eng |
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2009
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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. |
id | oai-inspirehep.net-880102 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2009 |
record_format | invenio |
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 |