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The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms
Theory, using Low Energy QCD, predicts with high precision the pion-pion and pion-kaon scattering lengths. There is accurate relation between $K^+\pi^−$ and $\pi^+K^-$ atoms lifetime and pion-kaon S-wave scattering lengths with isospin 1/2 and 3/2. Experiment DIRAC at CERN PS detects $345 \pm 61$ pa...
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| Lenguaje: | eng |
| Publicado: |
2016
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| Acceso en línea: | https://dx.doi.org/10.1051/epjconf/201613001015 http://cds.cern.ch/record/2277803 |
| _version_ | 1780955339023187968 |
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| author | Yazkov, Valeriy |
| author_facet | Yazkov, Valeriy |
| author_sort | Yazkov, Valeriy |
| collection | CERN |
| description | Theory, using Low Energy QCD, predicts with high precision the pion-pion and pion-kaon scattering lengths. There is accurate relation between $K^+\pi^−$ and $\pi^+K^-$ atoms lifetime and pion-kaon S-wave scattering lengths with isospin 1/2 and 3/2. Experiment DIRAC at CERN PS detects $345 \pm 61$ pairs from $K^+\pi^-$ and $\pi^+K^-$ atoms breakup. It allows to achieve the first observation of exotic atoms consisted of pion and kaon. Measured values of $\pi K$ atom lifetime and corresponding pion-kaon scattering length difference are presented. It is shown, that experimental accuracy for pion-kaon scattering length difference could be significantly improved with an experiment at SPS energy. |
| id | oai-inspirehep.net-1500835 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2016 |
| record_format | invenio |
| spelling | oai-inspirehep.net-15008352021-06-23T12:51:14Zdoi:10.1051/epjconf/201613001015http://cds.cern.ch/record/2277803engYazkov, ValeriyThe investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atomsNuclear Physics - ExperimentTheory, using Low Energy QCD, predicts with high precision the pion-pion and pion-kaon scattering lengths. There is accurate relation between $K^+\pi^−$ and $\pi^+K^-$ atoms lifetime and pion-kaon S-wave scattering lengths with isospin 1/2 and 3/2. Experiment DIRAC at CERN PS detects $345 \pm 61$ pairs from $K^+\pi^-$ and $\pi^+K^-$ atoms breakup. It allows to achieve the first observation of exotic atoms consisted of pion and kaon. Measured values of $\pi K$ atom lifetime and corresponding pion-kaon scattering length difference are presented. It is shown, that experimental accuracy for pion-kaon scattering length difference could be significantly improved with an experiment at SPS energy.DIRAC-CONF-2016-01oai:inspirehep.net:15008352016 |
| spellingShingle | Nuclear Physics - Experiment Yazkov, Valeriy The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms |
| title | The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms |
| title_full | The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms |
| title_fullStr | The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms |
| title_full_unstemmed | The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms |
| title_short | The investigation of $K^+\pi^−, \pi^+K^−$ and $\pi^+\pi^−$ atoms |
| title_sort | investigation of $k^+\pi^−, \pi^+k^−$ and $\pi^+\pi^−$ atoms |
| topic | Nuclear Physics - Experiment |
| url | https://dx.doi.org/10.1051/epjconf/201613001015 http://cds.cern.ch/record/2277803 |
| work_keys_str_mv | AT yazkovvaleriy theinvestigationofkpipikandpipiatoms AT yazkovvaleriy investigationofkpipikandpipiatoms |