Targeting (pseudo)-scalar CP violation with B s → μ + μ −
Abstract The leptonic decay B s → μ + μ − is both rare and theoretically clean, making it an excellent probe for New Physics searches. Due to its helicity suppression in the Standard Model, this decay is particularly sensitive to new (pseudo)-scalar contributions. We present a new strategy for detec...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-09-01
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| Series: | Journal of High Energy Physics |
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| Online Access: | https://doi.org/10.1007/JHEP09(2024)183 |
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| author | Robert Fleischer Eleftheria Malami Anders Rehult K. Keri Vos |
| author_facet | Robert Fleischer Eleftheria Malami Anders Rehult K. Keri Vos |
| author_sort | Robert Fleischer |
| collection | DOAJ |
| description | Abstract The leptonic decay B s → μ + μ − is both rare and theoretically clean, making it an excellent probe for New Physics searches. Due to its helicity suppression in the Standard Model, this decay is particularly sensitive to new (pseudo)-scalar contributions. We present a new strategy for detecting CP-violating New Physics contributions of this kind, exploiting two observables: A Δ Γ s μμ $$ {\mathcal{A}}_{\Delta {\varGamma}_s}^{\mu \mu} $$ , which is accessible due to the sizeable decay width difference of the B s system, and the mixing-induced CP asymmetry S μμ $$ {\mathcal{S}}_{\mu \mu} $$ . The strategy also uses information from B → K (*) μ + μ − and B s → ϕμ + μ − decays. We find remarkably constrained regions in the A Δ Γ s μμ $$ {\mathcal{A}}_{\Delta {\Gamma}_s}^{\mu \mu} $$ - S μμ $$ {\mathcal{S}}_{\mu \mu} $$ plane that serve as promising targets for future measurements. |
| format | Article |
| id | doaj-art-00ef5dfdbd8845f7a34f4f1d96a540f6 |
| institution | Kabale University |
| issn | 1029-8479 |
| language | English |
| publishDate | 2024-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj-art-00ef5dfdbd8845f7a34f4f1d96a540f62024-12-08T12:15:19ZengSpringerOpenJournal of High Energy Physics1029-84792024-09-012024911910.1007/JHEP09(2024)183Targeting (pseudo)-scalar CP violation with B s → μ + μ −Robert Fleischer0Eleftheria Malami1Anders Rehult2K. Keri Vos3NikhefNikhefNikhefNikhefAbstract The leptonic decay B s → μ + μ − is both rare and theoretically clean, making it an excellent probe for New Physics searches. Due to its helicity suppression in the Standard Model, this decay is particularly sensitive to new (pseudo)-scalar contributions. We present a new strategy for detecting CP-violating New Physics contributions of this kind, exploiting two observables: A Δ Γ s μμ $$ {\mathcal{A}}_{\Delta {\varGamma}_s}^{\mu \mu} $$ , which is accessible due to the sizeable decay width difference of the B s system, and the mixing-induced CP asymmetry S μμ $$ {\mathcal{S}}_{\mu \mu} $$ . The strategy also uses information from B → K (*) μ + μ − and B s → ϕμ + μ − decays. We find remarkably constrained regions in the A Δ Γ s μμ $$ {\mathcal{A}}_{\Delta {\Gamma}_s}^{\mu \mu} $$ - S μμ $$ {\mathcal{S}}_{\mu \mu} $$ plane that serve as promising targets for future measurements.https://doi.org/10.1007/JHEP09(2024)183Bottom QuarksCP ViolationRare Decays |
| spellingShingle | Robert Fleischer Eleftheria Malami Anders Rehult K. Keri Vos Targeting (pseudo)-scalar CP violation with B s → μ + μ − Journal of High Energy Physics Bottom Quarks CP Violation Rare Decays |
| title | Targeting (pseudo)-scalar CP violation with B s → μ + μ − |
| title_full | Targeting (pseudo)-scalar CP violation with B s → μ + μ − |
| title_fullStr | Targeting (pseudo)-scalar CP violation with B s → μ + μ − |
| title_full_unstemmed | Targeting (pseudo)-scalar CP violation with B s → μ + μ − |
| title_short | Targeting (pseudo)-scalar CP violation with B s → μ + μ − |
| title_sort | targeting pseudo scalar cp violation with b s μ μ |
| topic | Bottom Quarks CP Violation Rare Decays |
| url | https://doi.org/10.1007/JHEP09(2024)183 |
| work_keys_str_mv | AT robertfleischer targetingpseudoscalarcpviolationwithbsmm AT eleftheriamalami targetingpseudoscalarcpviolationwithbsmm AT andersrehult targetingpseudoscalarcpviolationwithbsmm AT kkerivos targetingpseudoscalarcpviolationwithbsmm |