| Literature DB >> 26877543 |
Abstract
The current status of flavour physics and the prospects for present and future experiments will be reviewed. Measurements in B-physics, in which sensitive probes of new physics are the CKM angle γ, the Bs mixing phase ϕs, and the branching ratios of the rare decays B(s)0→μ+μ- , will be highlighted. Topics in charm and kaon physics, in which the measurements of ACP and the branching ratios of the rare decays K→πνν¯ are key measurements, will be discussed. Finally the complementarity of the future heavy flavour experiments, the LHCb upgrade and Belle-II, will be summarised.Entities:
Keywords: Belle‐II; CP‐violation; Flavour physics; LHCb; charm‐τ factory; rare decays
Year: 2015 PMID: 26877543 PMCID: PMC4737432 DOI: 10.1002/andp.201500230
Source DB: PubMed Journal: Ann Phys ISSN: 0003-3804
Figure 1The experimental constraints on the sides and angles of the unitarity triangle from the CKMfitter group 6, represented on an Argand diagram. The base of the triangle is aligned along the real axis (), and is conventionally normalized to unity. The height of the apex of the triangle is plotted on the imaginary axis (). The experimental constraints on the three angles, α (light blue), β (violet) and γ (grey) are given by 95% confidence level (CL) bands. The darker blue band shows the 68% CL for β. Constraints on the triangle sides from measurements of (dark green) and the and mixing frequencies ( and respectively) are shown by the orange band at 95% CL. The 95% confidence constraint from measurements of indirect CP violation in the kaon system, the parameter (light green), is also shown. The dashed red region shows the 68% CL for the combination, which constrains the apex of the triangle.
Figure 2Combined CMS and LHCb di‐muon mass combination for 17.
Figure 3The parameter of the LHCb angular analysis of 20 compared to SM expectations 19.
Figure 4Contours of allowed regions in the plane of from LHCb, ATLAS, CMS and the Tevatron experiments29. is the width difference between eigenstates.
A subjective comparison of key measurements in flavour physics. ✓✓ represents world‐leading, ✓ represents high potential, but less precise, ? represents to be determined.
| LHCb Upgrade | Belle‐II | ATLAS/CMS | |
|---|---|---|---|
| CKM angle γ | ✓✓ | ✓✓ | |
|
| ✓✓ | ✓ | |
|
| ✓ ? | ✓✓ | |
|
| ✓✓ | ✓✓ | |
|
| ✓✓ | ✓ | |
|
| ✓ ? | ✓✓ | |
|
| ✓✓ | ✓✓ | ✓ |
|
| ✓✓ | ||
| Flavour violation in τ decay | ✓ | ✓✓ | ✓ |