Anomalies in Hadronic $B$ Decays
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2023
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866909397848948736 |
|---|---|
| author | Berthiaume, Raphaël Bhattacharya, Bhubanjyoti Boumris, Rida Jean, Alexandre Kumbhakar, Suman London, David |
| author_facet | Berthiaume, Raphaël Bhattacharya, Bhubanjyoti Boumris, Rida Jean, Alexandre Kumbhakar, Suman London, David |
| contents | In this paper, we perform fits to $B \to PP$ decays, where $B = \{B^0, B^+, B_s^0\}$ and the pseudoscalar $P = \{π, K\}$, under the assumption of flavor SU(3) symmetry [SU(3)$_F$]. Although the fits to $ΔS=0$ or $ΔS=1$ decays individually are good, the combined fit is very poor: there is a $3.6σ$ disagreement with the SU(3)$_F$ limit of the standard model (SM$_{\rm{SU(3)}_F}$). One can remove this discrepancy by adding SU(3)$_F$-breaking effects, but 1000% SU(3)$_F$ breaking is required. The above results are rigorous, group-theoretically - no dynamical assumptions have been made. When one adds an assumption motivated by QCD factorization, the discrepancy with the SM$_{\rm{SU(3)}_F}$ grows to $4.4σ$. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_18011 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Anomalies in Hadronic $B$ Decays Berthiaume, Raphaël Bhattacharya, Bhubanjyoti Boumris, Rida Jean, Alexandre Kumbhakar, Suman London, David High Energy Physics - Phenomenology High Energy Physics - Experiment In this paper, we perform fits to $B \to PP$ decays, where $B = \{B^0, B^+, B_s^0\}$ and the pseudoscalar $P = \{π, K\}$, under the assumption of flavor SU(3) symmetry [SU(3)$_F$]. Although the fits to $ΔS=0$ or $ΔS=1$ decays individually are good, the combined fit is very poor: there is a $3.6σ$ disagreement with the SU(3)$_F$ limit of the standard model (SM$_{\rm{SU(3)}_F}$). One can remove this discrepancy by adding SU(3)$_F$-breaking effects, but 1000% SU(3)$_F$ breaking is required. The above results are rigorous, group-theoretically - no dynamical assumptions have been made. When one adds an assumption motivated by QCD factorization, the discrepancy with the SM$_{\rm{SU(3)}_F}$ grows to $4.4σ$. |
| title | Anomalies in Hadronic $B$ Decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2311.18011 |