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Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays
We present the prospects of an angular analysis of the ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decay. Using the expected yield in the current dataset collected at the LHCb experiment, as well as the foreseen ones after the LHCb upgrades, sensitivity stu...
| Autores principales: | , , , , |
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| Lenguaje: | eng |
| Publicado: |
2020
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| Materias: | |
| Acceso en línea: | https://dx.doi.org/10.1140/epjp/s13360-021-01194-5 http://cds.cern.ch/record/2772237 |
| _version_ | 1780971421092020224 |
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| author | Amhis, Yasmine Descotes-Genon, Sébastien Marin Benito, Carla Novoa-Brunet, Martín Schune, Marie-Hélène |
| author_facet | Amhis, Yasmine Descotes-Genon, Sébastien Marin Benito, Carla Novoa-Brunet, Martín Schune, Marie-Hélène |
| author_sort | Amhis, Yasmine |
| collection | CERN |
| description | We present the prospects of an angular analysis of the ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decay. Using the expected yield in the current dataset collected at the LHCb experiment, as well as the foreseen ones after the LHCb upgrades, sensitivity studies are presented to determine the experimental precision on angular observables related to the lepton distribution and their potential to identify New Physics. The forward–backward lepton asymmetry at low dilepton invariant mass is particularly promising. NP scenarios favoured by the current anomalies in $b\rightarrow s\ell ^+\ell ^-$ decays can be distinguished from the SM case with the data collected between the Run 3 and the Upgrade 2 of the LHCb experiment. |
| id | cern-2772237 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2020 |
| record_format | invenio |
| spelling | cern-27722372023-02-16T08:51:29Zdoi:10.1140/epjp/s13360-021-01194-5http://cds.cern.ch/record/2772237engAmhis, YasmineDescotes-Genon, SébastienMarin Benito, CarlaNovoa-Brunet, MartínSchune, Marie-HélèneProspects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decayshep-exParticle Physics - Experimenthep-phParticle Physics - PhenomenologyWe present the prospects of an angular analysis of the ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decay. Using the expected yield in the current dataset collected at the LHCb experiment, as well as the foreseen ones after the LHCb upgrades, sensitivity studies are presented to determine the experimental precision on angular observables related to the lepton distribution and their potential to identify New Physics. The forward–backward lepton asymmetry at low dilepton invariant mass is particularly promising. NP scenarios favoured by the current anomalies in $b\rightarrow s\ell ^+\ell ^-$ decays can be distinguished from the SM case with the data collected between the Run 3 and the Upgrade 2 of the LHCb experiment.We present the prospects of an angular analysis of the $\Lambda_b \to \Lambda(1520)\ell^+\ell^-$ decay. Using the expected yield in the current dataset collected at the LHCb experiment, as well as the foreseen ones after the LHCb upgrades, sensitivity studies are presented to determine the experimental precision on angular observables related to arXiv:2005.09602oai:cds.cern.ch:27722372020-05-19 |
| spellingShingle | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology Amhis, Yasmine Descotes-Genon, Sébastien Marin Benito, Carla Novoa-Brunet, Martín Schune, Marie-Hélène Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| title | Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| title_full | Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| title_fullStr | Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| title_full_unstemmed | Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| title_short | Prospects for New Physics searches with ${{\Lambda } ^0_{\mathrm {b}}} \!\rightarrow {\Lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| title_sort | prospects for new physics searches with ${{\lambda } ^0_{\mathrm {b}}} \!\rightarrow {\lambda } (1520) {{\ell ^+} {\ell ^-}} $ decays |
| topic | hep-ex Particle Physics - Experiment hep-ph Particle Physics - Phenomenology |
| url | https://dx.doi.org/10.1140/epjp/s13360-021-01194-5 http://cds.cern.ch/record/2772237 |
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