$$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ
Abstract Several new physics scenarios that address anomalies in B-physics predict an enhancement of $$b \rightarrow s \tau \tau $$ b → s τ τ with respect to its Standard Model prediction. Such scenarios necessarily imply modifications of the lifetime ratio $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2023-09-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-023-12013-9 |
| _version_ | 1797647159974166528 |
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| author | Marzia Bordone Mario Fernández Navarro |
| author_facet | Marzia Bordone Mario Fernández Navarro |
| author_sort | Marzia Bordone |
| collection | DOAJ |
| description | Abstract Several new physics scenarios that address anomalies in B-physics predict an enhancement of $$b \rightarrow s \tau \tau $$ b → s τ τ with respect to its Standard Model prediction. Such scenarios necessarily imply modifications of the lifetime ratio $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and the lifetime difference $$\Delta \Gamma _{s}$$ Δ Γ s . In this work, we explore indirect bounds provided by these observables over new physics scenarios. We also estimate future projections, showing that future experimental and theoretical improvements on both $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s have the potential to provide bounds competitive with those directly extracted from $$b\rightarrow s \tau \tau $$ b → s τ τ transitions. After performing a model-independent analysis, we apply our results to the particular case of leptoquark mediators proposed to address the $$R_{D^{(*)}}$$ R D ( ∗ ) anomalies. |
| first_indexed | 2024-03-11T15:12:19Z |
| format | Article |
| id | doaj.art-00e50cf183e040e1a0462475b4a50a08 |
| institution | Directory Open Access Journal |
| issn | 1434-6052 |
| language | English |
| last_indexed | 2024-03-11T15:12:19Z |
| publishDate | 2023-09-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj.art-00e50cf183e040e1a0462475b4a50a082023-10-29T12:34:44ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522023-09-0183911310.1140/epjc/s10052-023-12013-9$$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τMarzia Bordone0Mario Fernández Navarro1Theoretical Physics Department, CERNSchool of Physics and Astronomy, University of SouthamptonAbstract Several new physics scenarios that address anomalies in B-physics predict an enhancement of $$b \rightarrow s \tau \tau $$ b → s τ τ with respect to its Standard Model prediction. Such scenarios necessarily imply modifications of the lifetime ratio $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and the lifetime difference $$\Delta \Gamma _{s}$$ Δ Γ s . In this work, we explore indirect bounds provided by these observables over new physics scenarios. We also estimate future projections, showing that future experimental and theoretical improvements on both $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s have the potential to provide bounds competitive with those directly extracted from $$b\rightarrow s \tau \tau $$ b → s τ τ transitions. After performing a model-independent analysis, we apply our results to the particular case of leptoquark mediators proposed to address the $$R_{D^{(*)}}$$ R D ( ∗ ) anomalies.https://doi.org/10.1140/epjc/s10052-023-12013-9 |
| spellingShingle | Marzia Bordone Mario Fernández Navarro $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ European Physical Journal C: Particles and Fields |
| title | $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ |
| title_full | $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ |
| title_fullStr | $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ |
| title_full_unstemmed | $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ |
| title_short | $$\tau _{B_{s}}/\tau _{B_{d}}$$ τ B s / τ B d and $$\Delta \Gamma _{s}$$ Δ Γ s confront new physics in $$b\rightarrow s\tau \tau $$ b → s τ τ |
| title_sort | tau b s tau b d τ b s τ b d and delta gamma s δ γ s confront new physics in b rightarrow s tau tau b s τ τ |
| url | https://doi.org/10.1140/epjc/s10052-023-12013-9 |
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