Future sensitivity to new physics in B_d, B_s and K mixings

Abstract

We estimate, in a large class of scenarios, the sensitivity to new physics in B_d and B_s mixings achievable with 50 ab-1 of Belle II and 50 fb-1 of LHCb data. We find that current limits on new physics contributions in both B_{d,s} systems can be improved by a factor of ~5 for all values of the CP violating phases, corresponding to over a factor of 2 increase in the scale of new physics probed. Assuming the same suppressions by CKM matrix elements as those of the standard model box diagrams, the scale probed will be about 20 TeV for tree-level new physics contributions, and about 2 TeV for new physics arising at one-loop. We also explore the future sensitivity to new physics in K mixing. Implications for generic new physics and for various specific scenarios, such as minimal flavor violation, light third-generation dominated flavor violation, or U(2) flavor models are studied.

12 pages; discussion of MFV extended; a fit for a hypothetical future new physics signal is added for illustration; first plot in figure 5 corrected; v3 is (essentially) identical to the published article

References in corpus (9)

• Understanding the B->K*mu+mu- Anomaly
• Anatomy of New Physics in B-Bbar mixing
• Epsilon_K at Next-to-Next-to-Leading Order: The Charm-Top-Quark Contribution
• Constraints on New Physics in MFV models: a model-independent analysis of Delta F=1 processes
• Cornering New Physics in b --> s Transitions
• Deciphering top flavor violation at the LHC with B factories
• Bayesian Fit of Exclusive $b\to s\bar{\ell }\ell$ Decays: The Standard Model Operator Basis
• CP violation and the CKM matrix
• Stringent Tests of Constrained Minimal Flavour Violation through Delta F=2 Transitions

Cited by in corpus (44)

• Combined analysis of semileptonic $B$ decays to $D$ and $D^{\ast }$: $R(D^{(\ast )})$, $|V_{cb}|$, and new physics
• The $B\to D\ell \nu$ form factors at nonzero recoil and $|V_{cb}|$ from $2+1$-flavor lattice QCD
• Flavor models for $\bar{B}\to D^{(\ast )}\tau \bar{\nu }$
• Current status of the Standard Model CKM fit and constraints on $\Delta F=2$ New Physics
• Towards the Identification of New Physics through Quark Flavour Violating Processes
• New Vector-Like Fermions and Flavor Physics
• ΔS=2 and ΔC=2 bag parameters in the SM and beyond from Nf=2+1+1 twisted-mass LQCD
• The CKM parameters in the SMEFT
• Precision measurement of the mass and lifetime of the ${\Xi }_b^0$ baryon
• $B_s\to {\mu }^{+}{\mu }^{-}$ as current and future probe of new physics
• High scale flavor alignment in two-Higgs doublet models and its phenomenology
• Hunting the Flavon
• New physics in $B$ meson mixing: future sensitivity and limitations
• Correlating the anomalous results in $b\to s$ decays with inert Higgs doublet dark matter and muon $(g-2)$
• The CKM Parameters
• Viability of minimal left-right models with discrete symmetries
• CP violation in the B system
• New ways to search for right-handed current in B -> rho ell nu decay
• Exhaustive Model Selection in $b\to s\ell \ell$ Decays: Pitting Cross-Validation against AIC${}_c$
• Isospin analysis of charmless B-meson decays
• Flavour physics and flavour symmetries after the first LHC phase
• Towards more precise determinations of the CKM phase $\beta$
• Non-minimal $331$ model for Lepton Flavour Universality Violation in $b\to s\ell \ell$ decays
• Lightness of Higgs Boson and Spontaneous CP Violation in Lee Model
• Observation of the decay $B_s^0\to {\bar{D}}^0\varphi$
• New Physics in $B_q^0-{\bar{B}}_q^0$ Mixing: Present Challenges, Prospects, and Implications for $B_q^0\to {\mu }^{+}{\mu }^{-}$
• Modelling theoretical uncertainties in phenomenological analyses for particle physics
• Observation of the decay $B_s^0\to {\overline{D}}^0{K}^{+}{K}^{-}$
• Observation of $B_s^0\to {\overline{D}}^{\ast 0}\varphi$ and search for $B^0\to {\overline{D}}^0\varphi$ decays
• $B_{s,d}-{\bar{B}}_{s,d}$ mixings and $B_{s,d}\to {\ell }^{+}{\ell }^{-}$ decays within the Manohar-Wise model
• A new look at the theory uncertainty of epsilon_K
• Flavour bounds on the flavon of a minimal and a non-minimal ${\mathcal{Z}}_2\times {\mathcal{Z}}_N$ symmetry
• TASI Lectures on Flavor Physics
• Testing CP-Violation in the Scalar Sector at Future $e^{+}{e}^{-}$ Colliders
• Continuous Flavor Symmetries and the Stability of Asymmetric Dark Matter
• Lightness of a Higgs Boson and Spontaneous CP-violation in the Lee Model: An Alternative Scenario
• Disentangling weak and strong interactions in $B\to K^{\ast }(\to K\pi )\pi$ Dalitz-plot analyses
• Flavor physics induced by light $Z^{\prime }$ from SO(10) GUT
• Spontaneous CP-violation in the Simplest Little Higgs Model and its Future Collider Tests: the Scalar Sector
• Finding flavons at colliders
• Higgs and flavour as doors to new physics
• Theory Summary and Prospects
• The Beautiful Physics of LHC Run 2
• Sensitivity of High-Scale SUSY in Low Energy Hadronic FCNC