# Model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons

@article{Lenz2020ModelindependentBO,
title={Model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons},
author={Alexander Lenz and Gilberto Tetlalmatzi-Xolocotzi},
journal={Journal of High Energy Physics},
year={2020}
}
• Published 16 December 2019
• Physics
• Journal of High Energy Physics
Abstract We present a considerably improved analysis of model-independent bounds on new physics effects in non-leptonic tree-level decays of B-mesons. Our main finding is that contributions of about ±0.1 to the Wilson coefficient of the colour-singlet operator Q2 of the effective weak Hamiltonian and contributions in the range of ±0.5 (both for real and imaginary part) to Q1 can currently not be excluded at the 90% C.L. . Effects of such a size can modify the direct experimental extraction of…
Penguin contribution to the width difference and CP asymmetry in Bq−B¯q mixing at order αs2Nf
• Physics
• 2020
We present new contributions to the decay matrix element $\Gamma_{12}^q$ of the $B_q$-$\bar B_q$ mixing complex, where $q=d$ or $s$. Our new results constitute the order $\alpha_s^2 N_f$ corrections
Charming new B-physics
• Physics
Journal of High Energy Physics
• 2020
Abstract We give a comprehensive account of the flavour physics of Beyond-Standard-Model (BSM) effects in b → c$$\overline{c}$$ c ¯ cs transitions, considering the full set of 20 four-quark
Probing new physics in class-I B-meson decays into heavy-light final states
• Physics
Journal of High Energy Physics
• 2021
Abstract With updated experimental data and improved theoretical calculations, several significant deviations are being observed between the Standard Model predictions and the experimental
The impact of nonminimal universal extra dimensional model on $$\Delta B=2$$ transitions
We measure the impact of nonvanishing boundary localised terms on $\Delta B=2$ transitions in five-dimensional Universal Extra Dimensional scenario where masses and coupling strengths of several
The time-dependent angular analysis of $B_d\to K_S\ell\ell$, a new benchmark for new physics
• Physics
• 2020
We consider the time-dependent analysis of $B_d\to K_S\ell\ell$ taking into account the time-evolution of the $B_d$ meson and its mixing into $\bar{B}_d$. We discuss the angular conventions required
Renormalization scale setting for D-meson mixing
• Physics
• 2020
A naive application of the heavy quark expansion (HQE) yields theory estimates for the decay rate of neutral $D$ mesons that are four orders of magnitude below the experimental determination. It is
Power-aligned 2HDM: a correlative perspective on (g − 2)e,μ
• Physics
• 2020
With the hypothesis of minimal flavor violation, we find that there exists a power-aligned relation between the Yukawa couplings of the two scalar doublets in the two-Higgs-doublet model with
Implications for new physics from novel puzzle in $\bar{B}_{(s)}^0 \to D^{(\ast)+}_{(s)} \lbrace \pi^-, K^- \rbrace$ decays
• Physics
• 2020
Recently, the standard model predictions for the $B$-meson hadronic decays, $\bar{B}^0 \to D^{(\ast)+}K^-$ and $\bar{B}^0_s \to D^{(\ast)+}_s \pi^-$, have been updated based on the QCD factorization
Searching for New Physics with $$\bar {\mathcal {B}}(B_{s,d}\to \mu \bar \mu )/\Delta M_{s,d}$$
• Physics
Acta Physica Polonica B
• 2021
We reemphasize that the ratio Rsμ ≡ B(Bs → μμ̄)/∆Ms is a measure of the tension of the Standard Model (SM) with latest measurements of B(Bs → μμ̄) that does not suffer from the persistent puzzle on
Measurement of the $CP$-violating phase $\phi_s$ in $B^0_s \to J/\psi\phi$ decays in ATLAS at 13 TeV
• Physics
• 2020
A measurement of the $B^0_s \to J/\psi\phi$ decay parameters using 80.5 fb$^{-1}$ of integrated luminosity collected with the ATLAS detector from 13 TeV proton-proton collisions at the LHC is

## References

SHOWING 1-10 OF 286 REFERENCES
New physics effects in tree-level decays and the precision in the determination of the quark mixing angle γ
• Physics
• 2015
We critically review the assumption that no new physics is acting in tree-level B-meson decays and study the consequences for the ultimate precision in the direct determination of the
Reassessing the discovery potential of the B → K*ℓ⁺ℓ⁻ decays in the large-recoil region: SM challenges and BSM opportunities
• Physics
• 2016
We critically examine the potential to disentangle Standard Model (SM) and New Physics (NP) in $B \to K^* \mu^+\mu^-$ and $B\to K^* e^+ e^-$ decays, focusing on $(i)$ the LHCb anomaly, $(ii)$ the
Weak annihilation and new physics in charmless $B \to M M$ decays
• Physics
• 2014
We use currently available data of nonleptonic charmless 2-body $B\to MM$ decays ($MM = PP, PV, VV$) that are mediated by $b\to (d, s)$ QCD- and QED-penguin operators to study weak annihilation and
B -> V_L V_L Decays at Next-to-Leading Order in QCD
• Physics
• 2008
We compute the amplitudes for the two-body decay of $B$ mesons into longitudinally polarized light vector mesons at next-to-leading order in QCD. We give the explicit expressions in QCD factorization
Charming new B-physics
• Physics
Journal of High Energy Physics
• 2020
Abstract We give a comprehensive account of the flavour physics of Beyond-Standard-Model (BSM) effects in b → c$$\overline{c}$$ c ¯ cs transitions, considering the full set of 20 four-quark
New Physics in $b \rightarrow s \mu^+ \mu^-$: Distinguishing Models through CP-Violating Effects
• Physics
• 2017
At present, there are several measurements of $B$ decays that exhibit discrepancies with the predictions of the SM, and suggest the presence of new physics (NP) in $b \to s \mu^+ \mu^-$ transitions.
Implications for new physics in $$b\rightarrow s \mu \mu$$ transitions after recent measurements by Belle and LHCb
• Physics
The European Physical Journal C
• 2019
We present a Bayesian analysis of the implications for new physics in semileptonic $$b\rightarrow s$$b→s transitions after including new measurements of $$R_K$$RK at LHCb and new determinations of
$B -> X_d \gamma$ and constraints on new physics
• Physics
• 2011
We combine recent progress in measuring the branching ratio of the decay B->X_d gamma$with the discovery that hadronic uncertainties in the CP-averaged branching ratio drop out to a large extent.$B \to V \gamma$beyond QCD factorisation • Physics • 2006 We calculate the main observables in$B_{u,d}\to (\rho,\omega,K^*)\gamma$and$B_s\to (\bar K^*,\phi)\gamma$decays, i.e. branching ratios and CP and isospin asymmetries. We include QCD factorisation A model-independent analysis of$b \to s \mu^{+} \mu^{-}$transitions with GAMBIT's FlavBit • Physics • 2020 The search for flavour-changing neutral current effects in$B\$-meson decays is a powerful probe of physics beyond the Standard Model. Deviations from SM behaviour are often quantified by extracting