More Indications for Lepton Nonuniversality in $b\to s{\ell }^{+}{\ell }^{-}$

Abstract

Recently the LHCb collaboration has confirmed the evidence for lepton flavour nonuniversality at the $3.1\sigma$ level via an updated measurement of $R_K$. In this work we analyse this evidence within a model-independent approach. We make projections for future measurements which indicate that LHCb will be in the position to discover lepton nonuniversality with the Run 3 data in a single observable. We analyse other ratios based on our analysis of the present measurements of the ratios $R_{K^{(\ast )}}$ and analyse if they are able to differentiate between various new physics options within the effective field theory at present or in the near future. We also compare the present deviations in the ratios with NP indications in the angular observables of exclusive $b\to s\ell \ell$ transitions. Finally, we update our global analysis considering all $b\to s\ell \ell$ observables altogether, including a 20-parameter fit in connection of a Wilks' test.

arXiv comment16 pages, 12 tables, 5 figures. v2: comments on LEE and references added

References in corpus (28)

• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Test of lepton universality with $B^0\to K^{\ast 0}{\ell }^{+}{\ell }^{-}$ decays
• Measurement of form-factor independent observables in the decay $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$
• Angular analysis of the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity
• More Model-Independent Analysis of b->s Processes
• SuperIso v3.0: A program for calculating flavor physics observables in 2HDM and supersymmetry
• Understanding the B->K*mu+mu- Anomaly
• Search for lepton-universality violation in $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Test of lepton universality in beauty-quark decays
• Flavour anomalies after the $R_{K^{\ast }}$ measurement
• SuperIso: A program for calculating the isospin asymmetry of B -> K* gamma in the MSSM
• $R_K$ and future $b\to s\ell \ell$ BSM opportunities
• Measurement of $CP$-averaged observables in the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay
• New physics in $b\to s$ transitions after LHC run 1
• $SU(2)\times U(1)$ gauge invariance and the shape of new physics in rare $B$ decays
• Study of the rare decays of $B_s^0$ and $B^0$ mesons into muon pairs using data collected during 2015 and 2016 with the ATLAS detector
• On the anomalies in the latest LHCb data
• Calculation of $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ and $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$ observables using form factors from lattice QCD
• Long-distance effects in $B\to K^{\ast }\ell \ell$ from Analyticity
• Predictions for Lepton Flavor Universality Violation in Rare B Decays in Models with Gauged $L_{\mu }-L_{\tau }$
• Update on the b->s anomalies
• On the LHCb anomaly in B -> K* l+ l-
• Allen: A high level trigger on GPUs for LHCb
• On lepton non-universality in exclusive $b\to s\ell \ell$ decays
• Measurement of properties of B${}_{\mathrm{s}}^0\to {\mu }^{+}{\mu }^{-}$ decays and search for B${}^0\to {\mu }^{+}{\mu }^{-}$ with the CMS experiment
• Hadronic and New Physics Contributions to $b\to s$ Transitions
• On the new LHCb angular analysis of $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$: Hadronic effects or New Physics?
• Naturalness of lepton non-universality and muon g-2

Cited by in corpus (54)

• 50 Years of Quantum Chromodynamics
• Improved Theory Predictions and Global Analysis of Exclusive $\mathbf{b}\to \mathbf{s}{\mathbf{\mu }}^{+}{\mathbf{\mu }}^{-}$ Processes
• Constraints on Lepton Universality Violation from Rare $B$ Decays
• Rare $b$ decays meet high-mass Drell-Yan
• To (b)e or not to (b)e: No electrons at LHCb
• $b\to s\ell \ell$ Global Fits after $R_{K_S}$ and $R_{K^{\ast +}}$
• Tests of lepton universality using $B^0\to K_S^0{\ell }^{+}{\ell }^{-}$ and $B^{+}\to K^{\ast +}{\ell }^{+}{\ell }^{-}$ decays
• $B$ Flavour Anomalies: 2021 Theoretical Status Report
• Unveiling Hidden Physics at the LHC
• Muonic Force Behind Flavor Anomalies
• Disentangling Lepton Flavour Universal and Lepton Flavour Universality Violating Effects in $b\to s{\ell }^{+}{\ell }^{-}$ Transitions
• Cornering the Two Higgs Doublet Model Type II
• Anatomy of kaon decays and prospects for lepton flavour universality violation
• Heavy Flavour Physics and CP Violation at LHCb: a Ten-Year Review
• New Physics in $b\to s\mu \mu$: FCC-hh or a Muon Collider?
• Review of Semileptonic $B$ Anomalies
• Likelihood analysis of the flavour anomalies and $g-2$ in the general two Higgs doublet model
• The Forward-Backward Asymmetry in $B\to D^{\ast }\ell \nu$: One more hint for Scalar Leptoquarks?
• The Flavourful Present and Future of 2HDMs at the Collider Energy Frontier
• Unified Explanation of the Anomalies in Semi-Leptonic $B$ decays and the $W$ Mass
• Leptoquark-vectorlike quark model for the CDF $m_W$, $(g-2{)}_{\mu }$, $R_{K^{(\ast )}}$ anomalies and neutrino mass
• On $(g-2{)}_{\mu }$ From Gauged $\mathrm{U}(1{)}_X$
• A global analysis of $b\to s\ell \ell$ data in heavy and light $Z^{\prime }$ models
• The cost of an ALP solution to the neutral $B$-anomalies
• New physics in $B\to K^{\ast }{\tau }^{+}{\tau }^{-}$: A model independent analysis
• Towards excluding a light $Z^{\prime }$ explanation of $b\to s{\ell }^{+}{\ell }^{-}$
• New Physics in $B_q^0-{\bar{B}}_q^0$ Mixing: Present Challenges, Prospects, and Implications for $B_q^0\to {\mu }^{+}{\mu }^{-}$
• $CP$ violation in $b\to s\ell \ell$: a model independent analysis
• The Rumble in the Meson: a leptoquark versus a $Z^{\prime }$ to fit $b\to s{\mu }^{+}{\mu }^{-}$ anomalies including 2022 LHCb $R_{K^{(\ast )}}$ measurements
• Diquark Explanation of $b\to s{\ell }^{+}{\ell }^{-}$
• Explaining anomalies of $B$-physics, muon $g-2$ and $W$ mass in $R$-parity violating MSSM with seesaw mechanism
• On the impact of meson mixing on $B_s\to \varphi ee$ angular observables at low $q^2$
• Interplay of the charged Higgs effects in $R_{D^{(\ast )}}$, $b\to s{\ell }^{+}{\ell }^{-}$ and $W$-mass
• Neutrino masses, flavor anomalies and muon $\mathbf{g}-2$ from dark loops
• Correlating the CDF $W$-boson mass shift with the $b\to s{\ell }^{+}{\ell }^{-}$ anomalies
• Electroweak Penguin Decays of $b$-Flavoured Hadrons
• Analysis of final state lepton polarization-dependent observables in $H\to {\ell }^{+}{\ell }^{-}\gamma$ in the SM at loop level
• Linking the $R_{K^{(\ast )}}$ anomalies to the Hubble tension via a single right-handed neutrino
• Data-driven analyses and model-independent fits for present $b\to s\ell \ell$ results
• Anomalous gauge couplings vis-$\grave{a}$-vis $(g-2{)}_{\mu }$ and flavor observables
• Probing B-Anomalies via Dimuon Tails at a Future Collider
• Lepton Flavor Violating $B\to K_2^{\ast }(1430){\mu }^{\pm }{\tau }^{\mp }$ Decays
• Discriminating 1D new physics solutions in $b\to s\ell \ell$ decays
• Gauge $SU(2{)}_f$ flavour transfers
• Frugal $U(1{)}_X$ models with non-minimal flavor violation for $b\to s\ell \ell$ anomalies and neutrino mixing
• Theoretical Review of Rare B Decays
• Angular distribution of ${\Lambda }_b^0\to p{K}^{-}{\ell }^{+}{\ell }^{-}$ decays comprising $\Lambda$ resonances with spin up to $\le 5/2$
• Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles
• Round table on Standard Model Anomalies
• A new Monte Carlo Generator for BSM physics in $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays with an application to lepton non-universality in angular distributions
• Flavour anomalies in supersymmetric scenarios with non-minimal flavour violation
• Explaining the hints for lepton flavour universality violation with three $S_2$ leptoquark generations
• Flavour Physics at LHCb -- 50 years of the KM paradigm
• Re-evaluation of the isoscalar mixing angle within selected mesonic nonets