Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′
Abstract We show that D → Pη′ decay amplitudes, where P = K, π, η, cannot be simply related to their D → Pη counterparts with a single η 0–η 8 mixing angle. We propose a novel, consistent treatment of η 0–η 8 mixing for application in D → Pη and D → Pη′ decays. Using this framework, we perform a glo...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-05-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP05(2025)148 |
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| author | Carolina Bolognani Ulrich Nierste Stefan Schacht K. Keri Vos |
| author_facet | Carolina Bolognani Ulrich Nierste Stefan Schacht K. Keri Vos |
| author_sort | Carolina Bolognani |
| collection | DOAJ |
| description | Abstract We show that D → Pη′ decay amplitudes, where P = K, π, η, cannot be simply related to their D → Pη counterparts with a single η 0–η 8 mixing angle. We propose a novel, consistent treatment of η 0–η 8 mixing for application in D → Pη and D → Pη′ decays. Using this framework, we perform a global analysis of D → Pη′ decays employing SU(3) F symmetry including linear SU(3) F breaking. We find that the assumption of 30% SU(3) F breaking is in slight tension (2.5σ) with the data when compared to a fit that allows for 50% SU(3) F breaking, the latter giving a perfect description of the data. In order to allow for further scrutinization of SU(3) F -breaking effects in the future, we give branching ratio predictions for all D → Pη′ modes. Our predictions deviate from the current data in case of the branching ratios B $$ \mathcal{B} $$ ( D s + $$ {D}_s^{+} $$ → K + η′) and B $$ \mathcal{B} $$ (D + → K + η′). Future more precise measurements of these channels are therefore highly important in order to clarify the quality of the SU(3) F expansion in nonleptonic D → Pη′ decays. |
| format | Article |
| id | doaj-art-5cb230fc44204c01a42de1c105a712dd |
| institution | OA Journals |
| issn | 1029-8479 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-5cb230fc44204c01a42de1c105a712dd2025-08-20T02:30:49ZengSpringerOpenJournal of High Energy Physics1029-84792025-05-012025512410.1007/JHEP05(2025)148Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′Carolina Bolognani0Ulrich Nierste1Stefan Schacht2K. Keri Vos3Gravitational Waves and Fundamental Physics (GWFP), Maastricht UniversityInstitute for Theoretical Particle Physics, Karlsruhe Institute of Technology (KIT)Department of Physics and Astronomy, University of ManchesterGravitational Waves and Fundamental Physics (GWFP), Maastricht UniversityAbstract We show that D → Pη′ decay amplitudes, where P = K, π, η, cannot be simply related to their D → Pη counterparts with a single η 0–η 8 mixing angle. We propose a novel, consistent treatment of η 0–η 8 mixing for application in D → Pη and D → Pη′ decays. Using this framework, we perform a global analysis of D → Pη′ decays employing SU(3) F symmetry including linear SU(3) F breaking. We find that the assumption of 30% SU(3) F breaking is in slight tension (2.5σ) with the data when compared to a fit that allows for 50% SU(3) F breaking, the latter giving a perfect description of the data. In order to allow for further scrutinization of SU(3) F -breaking effects in the future, we give branching ratio predictions for all D → Pη′ modes. Our predictions deviate from the current data in case of the branching ratios B $$ \mathcal{B} $$ ( D s + $$ {D}_s^{+} $$ → K + η′) and B $$ \mathcal{B} $$ (D + → K + η′). Future more precise measurements of these channels are therefore highly important in order to clarify the quality of the SU(3) F expansion in nonleptonic D → Pη′ decays.https://doi.org/10.1007/JHEP05(2025)148Charm Flavour ViolationFlavour Symmetries |
| spellingShingle | Carolina Bolognani Ulrich Nierste Stefan Schacht K. Keri Vos Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ Journal of High Energy Physics Charm Flavour Violation Flavour Symmetries |
| title | Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ |
| title_full | Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ |
| title_fullStr | Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ |
| title_full_unstemmed | Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ |
| title_short | Anatomy of non-leptonic two-body decays of charmed mesons into final states with η′ |
| title_sort | anatomy of non leptonic two body decays of charmed mesons into final states with η |
| topic | Charm Flavour Violation Flavour Symmetries |
| url | https://doi.org/10.1007/JHEP05(2025)148 |
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