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Searches for lepton flavour and lepton number violation in $K^+$ decays
The NA62 experiment at CERN offers the highest experimental sensitivity to rare and forbidden kaon decays. A search for lepton number violating processes K+→π-e+e- and K+→π-μ+μ+, using a partial data set collected by NA62 in 2016-2018, is reported. No signals are observed and upper limits at 90% con...
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| Lenguaje: | eng |
| Publicado: |
SISSA
2020
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| Acceso en línea: | https://dx.doi.org/10.22323/1.364.0222 http://cds.cern.ch/record/2765820 |
| _version_ | 1780971175059390464 |
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| author | Romano, Angela |
| author_facet | Romano, Angela |
| author_sort | Romano, Angela |
| collection | CERN |
| description | The NA62 experiment at CERN offers the highest experimental sensitivity to rare and forbidden kaon decays. A search for lepton number violating processes K+→π-e+e- and K+→π-μ+μ+, using a partial data set collected by NA62 in 2016-2018, is reported. No signals are observed and upper limits at 90% confidence level on the branching fractions of these decays are obtained: 2.2x10-10 and 4.2x10-11, respectively. These results improve on previously reported measurements by factors of 3 and 2, respectively. |
| id | oai-inspirehep.net-1830842 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| publisher | SISSA |
| record_format | invenio |
| spelling | oai-inspirehep.net-18308422022-11-17T14:33:03Zdoi:10.22323/1.364.0222http://cds.cern.ch/record/2765820engRomano, AngelaSearches for lepton flavour and lepton number violation in $K^+$ decaysParticle Physics - ExperimentThe NA62 experiment at CERN offers the highest experimental sensitivity to rare and forbidden kaon decays. A search for lepton number violating processes K+→π-e+e- and K+→π-μ+μ+, using a partial data set collected by NA62 in 2016-2018, is reported. No signals are observed and upper limits at 90% confidence level on the branching fractions of these decays are obtained: 2.2x10-10 and 4.2x10-11, respectively. These results improve on previously reported measurements by factors of 3 and 2, respectively.SISSAoai:inspirehep.net:18308422020 |
| spellingShingle | Particle Physics - Experiment Romano, Angela Searches for lepton flavour and lepton number violation in $K^+$ decays |
| title | Searches for lepton flavour and lepton number violation in $K^+$ decays |
| title_full | Searches for lepton flavour and lepton number violation in $K^+$ decays |
| title_fullStr | Searches for lepton flavour and lepton number violation in $K^+$ decays |
| title_full_unstemmed | Searches for lepton flavour and lepton number violation in $K^+$ decays |
| title_short | Searches for lepton flavour and lepton number violation in $K^+$ decays |
| title_sort | searches for lepton flavour and lepton number violation in $k^+$ decays |
| topic | Particle Physics - Experiment |
| url | https://dx.doi.org/10.22323/1.364.0222 http://cds.cern.ch/record/2765820 |
| work_keys_str_mv | AT romanoangela searchesforleptonflavourandleptonnumberviolationinkdecays |