Measurement of an Excess of B -> D(*) Tau Nu Decays and Implications for Charged Higgs Bosons

Abstract

Based on the full BaBar data sample, we report improved measurements of the ratios R(D(*)) = B(B -> D(*) Tau Nu)/B(B -> D(*) l Nu), where l is either e or mu. These ratios are sensitive to new physics contributions in the form of a charged Higgs boson. We measure R(D) = 0.440 +- 0.058 +- 0.042 and R(D*) = 0.332 +- 0.024 +- 0.018, which exceed the Standard Model expectations by 2.0 sigma and 2.7 sigma, respectively. Taken together, our results disagree with these expectations at the 3.4 sigma level. This excess cannot be explained by a charged Higgs boson in the type II two-Higgs-doublet model. Kinematic distributions presented here exclude large portions of the more general type III two-Higgs-doublet model, but there are solutions within this model compatible with the results.

32 pages, 30 postscript figures, submitted to Phys. Rev. D

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• A Complete Framework for Tau Polarimetry in $B\to D^{(\ast )}\tau \nu$ Decays
• Amplitude analysis of the ${\Lambda }_c^{+}\to p{K}^{-}{\pi }^{+}$ decay and ${\Lambda }_c^{+}$ baryon polarization measurement in semileptonic beauty hadron decays
• Measurement of the Absolute Branching Fraction of $D_s^{+}\to {\tau }^{+}{\nu }_{\tau }$ via ${\tau }^{+}\to e^{+}{\nu }_e{\bar{\nu }}_{\tau }$
• $B\to D^{(\ast )}\tau {\nu }_{\tau }$ in the 2HDM with an anomalous $\tau$ coupling
• Measurements of the branching fractions for the semi-leptonic decays $D_s^{+}\to \varphi e^{+}{\nu }_e$, $\varphi {\mu }^{+}{\nu }_{\mu }$, $\eta {\mu }^{+}{\nu }_{\mu }$ and ${\eta }^{\prime }{\mu }^{+}{\nu }_{\mu }$
• Non-Standard Neutrino Interactions : Obviating Oscillation Experiments
• Impact of leptonic $\tau$ decays on the distribution of $B\to P\mu \bar{\nu }$ decays
• Non-minimal $331$ model for Lepton Flavour Universality Violation in $b\to s\ell \ell$ decays
• A test of light-lepton universality in the rates of inclusive semileptonic $B$-meson decays at Belle II
• Probing effects of new physics in ${\Lambda }_b^0\to {\Lambda }_c^{+}{\mu }^{-}{\bar{\nu }}_{\mu }$ decays
• $h^0\to c\bar{c}$ as a test case for quark flavor violation in the MSSM
• Analysing the charged scalar boson contribution to the charged-current $B$ meson anomalies
• Coup de grace to the charged Higgs solution of $P_5^{\prime }$ and $R_{D^{(\ast )}}$ discrepancies
• Uncertainties of the $B\to D$ transition form factor from the $D$-Meson Leading-Twist Distribution Amplitude
• Self-consistent light-front quark model analysis of $B\to D\ell {\nu }_{\ell }$ transition form factors
• Semileptonic $B_c\to {\eta }_c,J/\psi$ transitions
• Study of semileptonic ${\bar{B}}^{\ast }\to P\ell {\bar{\nu }}_{\ell }$ decays
• $b\to c\ell \nu$ anomalies in light of extended scalar sectors
• Combined explanations of $B$-physics anomalies, $(g-2{)}_{e,\mu }$ and neutrino masses by scalar leptoquarks
• Rare semileptonic $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays in RS${}_c$ model
• Tests of the Standard Model in $B\to D\ell {\nu }_{\ell }$, $B\to D^{\ast }\ell {\nu }_{\ell }$ and $B_c\to J/\psi \ell {\nu }_{\ell }$
• Observation of $\overline{B}\to D^{(\ast )}{\pi }^{+}{\pi }^{-}{\ell }^{-}\overline{\nu }$ decays in $e^{+}{e}^{-}$ collisions at the ${\rm Y}(4S)$ resonance
• Semileptonic and leptonic $B$ decays, circa 2016
• New physics in inclusive semileptonic $B$ decays including nonperturbative corrections
• $\mathcal{R}(D^{(\ast )})$ anomalies in light of Non-Minimal Universal Extra Dimension
• Exclusive radiative B-meson decays within minimal flavour violating 2HDMs
• Impact of vector leptoquark on $\bar{B}\to {\bar{K}}^{\ast }{l}^{+}{l}^{-}$ anomalies
• Prospects for $B_c^{+}$ and $B^{+}\to {\tau }^{+}{\nu }_{\tau }$ at FCC-ee
• Resonance enhancement of Charm CP
• Search for the decay $B^0\to K^{\ast 0}{\tau }^{+}{\tau }^{-}$ at the Belle experiment
• Flavor Non-universal Vector Leptoquark Imprints in $K\to \pi \nu \bar{\nu }$ and $\Delta F=2$ Transitions
• Multi-lepton probes of new physics and lepton-universality in top-quark interactions
• ${\Lambda }_b\to {\Lambda }_c$ Form Factors from QCD Light-Cone Sum Rules
• Form factor ratios for $B_s\to K\ell \nu$ and $B_s\to D_s\ell \nu$ semileptonic decays and $|V_{ub}/V_{cb}|$
• Update of the flavour-physics constraints in the NMSSM
• Unified resolution of the $R(D)$ and $R(D^{\ast })$ anomalies and the lepton flavor violating decay $h\to \mu \tau$
• Implication of $R_{D^{(\ast )}}$ anomalies on semileptonic decays of ${\Sigma }_b$ and ${\Omega }_b$ baryons
• Charged Higgs boson contribution to $B_q^{-}\to \ell \bar{\nu }$ and $\bar{B}\to (P,V)\ell \bar{\nu }$ in a generic two-Higgs doublet model
• Higgs Bosons from Top Quark Decays
• Constraints on 2l2q operators from $\mu -e$ flavour-changing meson decays
• NLO QCD corrections to inclusive semitauonic weak decays of heavy hadrons up to $1/m_b^3$
• Testing Leptoquark and $Z^{\prime }$ Models via $B\to K_1(1270,1400){\mu }^{+}{\mu }^{-}$ Decays
• Flavour anomalies: a review
• Phenomenology of TeV-scale scalar Leptoquarks in the EFT
• Scotogenic Dirac neutrino mass models embedded with leptoquarks: one pathway to address the flavor anomalies and the neutrino masses together
• Method of Studying ${\Lambda }_b^0$ decays with one missing particle
• One colorful resolution to the neutrino mass generation, three lepton flavor universality anomalies, and the Cabibbo angle anomaly
• Marriage between neutrino mass and flavor anomalies
• Search for pair-produced vector-like leptons in final states with third-generation leptons and at least three b quark jets in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Constraints on leptoquarks from lepton-flavour-violating tau-lepton processes
• Measurement of the branching fraction of leptonic decay $D_s^{+}\to {\tau }^{+}{\nu }_{\tau }$ via ${\tau }^{+}\to {\pi }^{+}{\pi }^0{\bar{\nu }}_{\tau }$
• Signatures of complex new physics in $b\to c\tau \bar{\nu }$ transitions
• Observation of $D_s^{+}\to {\eta }^{\prime }{\mu }^{+}{\nu }_{\mu }$, Precision Test of Lepton Flavor Universality with $D_s^{+}\to {\eta }^{(\prime )}{\ell }^{+}{\nu }_{\ell }$, and First Measurements of $D_s^{+}\to {\eta }^{(\prime )}{\mu }^{+}{\nu }_{\mu }$ Decay Dynamics
• Impact of vector new physics couplings on $B_s\to (K,K^{\ast })\tau \nu$ and $B\to \pi \tau \nu$ decays
• Observation of the decay $D^0\to K^{-}{\pi }^{+}{e}^{+}{e}^{-}$
• Measurement of the branching fraction ratios $R(D^{+})$ and $R(D^{\ast +})$ using muonic $\tau$ decays
• Constraints on Scalar Leptoquark from Kaon Sector
• Lepton-flavor universality limits in warped space
• Addendum to: Combined Constraints on First Generation Leptoquarks
• Lepton mass effects in exclusive semileptonic $B_c$-meson decays
• Accidental scale-invariant Majorana dark matter in leptoquark-Higgs portals
• $R(D^{(\ast )})$ and $\mathcal{B}r(B\to \tau {\nu }_{\tau })$ in a Flipped/Lepton-Specific 2HDM with anomalously enhanced charged Higgs coupling to $\tau$/b
• $\bar{B}\to D^{(\ast )}\ell \bar{X}$ decays in effective field theory with massive right-handed neutrinos
• B Anomalies and Leptoquarks at the LHC: Beyond the Lepton-Quark Final State
• Future Experimental Improvement for the Search of LNV Process in $e\mu$ Sector
• Scrutinizing New Physics in Semi-leptonic $B_c\to J/\psi \tau \nu$ Decay
• The LFU Ratio $R_{\pi }$ in the Standard Model and Beyond
• Leptoquarks and Real Singlets: A Richer Scalar Sector Behind the Origin of Dark Matter
• Studies of Lepton Flavor Violation at the LHC
• Precise probing and discrimination of third-generation scalar leptoquarks
• Heavy baryon wave functions, Bakamjian-Thomas approach to form factors, and observables in ${\Lambda }_b\to {\Lambda }_c\left({\frac{1}{2}}^{\pm }\right)\ell \overline{\nu }$ transitions
• Implication of $b\to c\tau \nu$ flavor anomalies on $B_s\to D_s^{\ast }\tau \nu$ decay observables
• Lepton flavour violation in rare ${\Lambda }_b$ decays
• Restudy of the color-allowed two-body nonleptonic decay of bottom baryons ${\Xi }_b$ and ${\Omega }_b$ supported by hadron spectroscopy
• Report of the Quark Flavor Physics Working Group
• Bottom-quark Forward-Backward Asymmetry, Dark Matter and the LHC
• ${\bar{B}}_c\to {\eta }_c$, ${\bar{B}}_c\to J/\psi$ and $\bar{B}\to D^{(\ast )}$ semileptonic decays including new physics
• Measurement of the top quark pair production cross section in dilepton final states containing one $\tau$ lepton in pp collisions at $\sqrt{s}=$ 13 TeV
• B-Meson Decays into Final States with a tau Lepton
• Progress on semi-leptonic $B_{(s)}$ decays
• Semileptonic decays of $B_c$ meson to $P$-wave charmonium states
• First Measurement of the Absolute Branching Fraction of $\Lambda \to p{\mu }^{-}{\bar{\nu }}_{\mu }$
• Detailed Study of the Decay Lambda_b --> Lambda_c tau {\bar ν}_τ
• New physics footprints in the angular distribution of $B_s\to D_s^{\ast }(\to D_s\gamma ,D_s\pi )\tau \nu$ decays
• $D^{\ast }$ Polarization as an Additional Constraint on New Physics in the $b\to c\tau {\bar{\nu }}_{\tau }$ Transition
• Muon $(g-2)$ and Flavor Puzzles in the $U(1{)}_X^{}$-gauged Leptoquark Model
• Exclusive semileptonic $B_c$-meson decays to radially excited charmonium and charm meson states
• Effective Theory of Higgs Sector Vacuum States
• First Measurement of $R(X_{\tau /\ell })$ as an Inclusive Test of the $b\to c\tau \nu$ Anomaly
• Form-factor-independent test of lepton universality in semileptonic heavy meson and baryon decays
• Direct Constraints, Flavor Physics, and Flavor Anomalies in Composite Higgs Models
• Search for a ${\mu }^{+}{\mu }^{-}$ resonance in four-muon final states at Belle II
• Constraints on scalar and vector leptoquarks from the LHC Higgs data
• Relativistic calculations of $R(D^{(\ast )})$, $R(D_s^{(\ast )})$, $R({\eta }_c)$ and $R(J/\psi )$
• Search for a ${\tau }^{+}{\tau }^{-}$ resonance in $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}{\tau }^{+}{\tau }^{-}$ events with the Belle II experiment
• $B-L$ violating nucleon decays as a probe of leptoquarks and implications for baryogenesis
• Investigating the transition form factors of ${\Lambda }_b\to {\Lambda }_c(2625)$ and ${\Xi }_b\to {\Xi }_c(2815)$ and the corresponding weak decays with support from baryon spectroscopy
• Implications for the $\Delta A_{FB}$ anomaly in ${\bar{B}}^0\to D^{\ast +}{\ell }^{-}\bar{\nu }$ using a new Monte Carlo Event Generator
• High $p_T$ correlated tests of lepton universality in lepton(s) + jet(s) processes; an EFT analysis
• First observation of $B\to {\bar{D}}_1(\to \bar{D}{\pi }^{+}{\pi }^{-}){\ell }^{+}{\nu }_{\ell }$ and measurement of the $B\to {\bar{D}}^{(\ast )}\pi {\ell }^{+}{\nu }_{\ell }$ and $B\to {\bar{D}}^{(\ast )}{\pi }^{+}{\pi }^{-}{\ell }^{+}{\nu }_{\ell }$ branching fractions with hadronic tagging at Belle
• Measuring CP violation in $b\to c{\tau }^{-}{\bar{\nu }}_{\tau }$ using excited charm mesons
• $b\to c\tau \bar{\nu }$ decays in supersymmetry with $R$-parity violation
• New physics effects on ${\Lambda }_b\to {\Lambda }_c^{\ast }\tau {\bar{\nu }}_{\tau }$ decays
• New physics contributions in $B\to \pi \tau \bar{\nu }$ and $B\to \tau \bar{\nu }$
• Probing New Physics Signals with Symmetry-Restored Yukawa Textures
• Measurement of the B^0 -> D^*- pi^+ pi^- pi^+ branching fraction
• Non-resonant Leptoquark with multigeneration couplings to $\mu \mu jj$ and $\mu \nu jj$ at LHC
• Importance of vector leptoquark-scalar box diagrams in Pati-Salam unification with vector-like families
• Flavor changing top decays to charm and Higgs with $\tau \tau$ at the LHC
• Observation of the Decay $D^0\to {\rho }^{-}{\mu }^{+}{\nu }_{\mu }$
• Measurement of the relative $B^{-}\to D^0/D^{\ast 0}/D^{\ast \ast 0}{\mu }^{-}{\overline{\nu }}_{\mu }$ branching fractions using $B^{-}$ mesons from $\overline{B}{}_{s2}^{\ast 0}$ decays
• The ratio $\mathcal{R}(D_s)$ for $B_s\to D_s\ell {\nu }_{\ell }$ by using the QCD light-cone sum rules within the framework of heavy quark effective field theory
• Scouring meson decays for true muonium
• Status of $|V_{cb}|$ and $|V_{ub}|$ CKM matrix elements
• Interplay of the charged Higgs effects in $R_{D^{(\ast )}}$, $b\to s{\ell }^{+}{\ell }^{-}$ and $W$-mass
• LHC constraints on $W^{\prime },Z^{\prime }$ that couple mainly to third generation fermions
• Tests of light-lepton universality in angular asymmetries of $B^0\to D^{\ast -}\ell \nu$ decays
• Measurement of the branching fraction of $B\to D^{(\ast )}\pi \ell \nu$ at Belle using hadronic tagging in fully reconstructed events
• A Challenge to Lepton Universality in B Meson Decays
• Improved measurement of the branching fraction of $D_s^{+}\to {\mu }^{+}{\nu }_{\mu }$
• Predictions of $B_c\to (D,D^{\ast })l\nu$ decay observables in the standard model
• RooHammerModel: interfacing the HAMMER software tool with the HistFactory package
• New physics in the angular distribution of $B_c^{-}\to J/\psi (\to {\mu }^{+}{\mu }^{-}){\tau }^{-}(\to {\pi }^{-}{\nu }_{\tau }){\bar{\nu }}_{\tau }$ decay
• Observation of $D^{+}\to {\eta }^{\prime }{\mu }^{+}{\nu }_{\mu }$ and First Study of $D^{+}\to {\eta }^{\prime }{\ell }^{+}{\nu }_{\ell }$ Decay Dynamics
• Probing New Physics in light of recent developments in $b\to c\ell \nu$ transitions
• $B_s$-${\bar{B}}_s$ mixing interplay with $B$ anomalies
• Baryonic heavy-to-light form factors induced by tensor current in light-front approach
• Precision measurement of the $\mathcal{B}({\rm Y}(3S)\to {\tau }^{+}{\tau }^{-})/\mathcal{B}({\rm Y}(3S)\to {\mu }^{+}{\mu }^{-})$ ratio
• Selected Topics in Heavy Flavour Physics
• Revisiting $D$-meson twist-2, 3 distribution amplitudes
• Dipole moments of charged leptons in the THDM-III with Textures
• Testing the Standard Model under the weight of heavy flavors
• Radiative Semileptonic $\bar{B}$ Decays
• Test of lepton flavor universality with measurements of $R(D^{+})$ and $R(D^{\ast +})$ using semileptonic $B$ tagging at the Belle II experiment
• Determination of mass hierarchy with ${\nu }_{\mu }\to {\nu }_{\tau }$ appearance and the effect of nonstandard interactions
• Extra gauge bosons and lepton flavor universality violation in ${\rm Y}$ and $B$ meson decays
• Simplified models of vector $SU(4)$ leptoquarks at the TeV
• The Neutrino Magnetic Moment Portal
• Interpreting B-anomalies within an extended 331 gauge theory
• Impact of $b\to c$ measurements on ${\Lambda }_b\to p\tau \bar{\nu }$ decay in $U_1$ leptoquark model
• Analysis of $b\to c\tau {\bar{\nu }}_{\tau }$ anomalies using weak effective Hamiltonian with complex couplings
• Model independent investigation of rare semileptonic b \to u l \barν_l decay processes
• Singlet vector leptoquark model facing recent LHCb and BABAR measurements
• Search for leptoquark pair production decaying into $t{e}^{-}\bar{t}{e}^{+}$ or $t{\mu }^{-}\bar{t}{\mu }^{+}$ in multi-lepton final states in $pp$ collisions at 13 TeV with the ATLAS detector
• Searching for New Physics in Semi-Leptonic Baryon Decays
• Test of lepton flavor universality in semileptonic B${}_{\text{c}}^{+}$ meson decays in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Search for charged-lepton-flavour violating $\mu \tau qt$ interactions in top-quark production and decay in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector at the LHC
• Search for opposite sign muon-tau pair and a b-jet at LHC in the context of flavor anomalies
• Semileptonic baryon decays ${\Xi }_b\to {\Xi }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ in perturbative QCD
• Rare decays of b hadrons
• Clifford-based spectral action and renormalization group analysis of the gauge couplings
• $B_c$ to $A$ Transition Form Factors and Semileptonic Decays in Self-consistent Covariant Light-front Approach
• Search for pair production of scalar and vector leptoquarks decaying to muons and bottom quarks in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Angular distribution as an effective probe of new physics in semi-hadronic three-body meson decays
• Assessing Lepton Flavor Universality Violations in Semileptonic Decays
• TeV-scale vector leptoquark from Pati-Salam unification with vectorlike families
• Electric Dipole Moments as Probes of $B$ Anomaly
• Testing Lepton Flavour Universality in ${\rm Y}(4S)$ Decays
• Probing the R-parity violating supersymmetric effects in $B_c\to J/\psi {\ell }^{-}{\bar{\nu }}_{\ell },{\eta }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ and ${\Lambda }_b\to {\Lambda }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ decays
• $B$ anomalies in the nonminimal universal extra dimension model
• Angular analysis of $\bar{B}\to D_2^{\ast }(\to D\pi )\ell \bar{\nu }$ decay and new physics
• Search for the lepton-flavor violating decay $B_s^0\to \varphi {\mu }^{\pm }{\tau }^{\mp }$
• Three Lectures of Flavor and CP violation within and Beyond the Standard Model
• Lepton Flavor Violating $B\to K_2^{\ast }(1430){\mu }^{\pm }{\tau }^{\mp }$ Decays
• Visible energy and angular distributions of the charged particle from the $\tau -$decay in $b\to c\tau (\mu {\bar{\nu }}_{\mu }{\nu }_{\tau },\pi {\nu }_{\tau },\rho {\nu }_{\tau }){\bar{\nu }}_{\tau }$ reactions
• Precision measurement of the Z boson to electron neutrino coupling at the future circular colliders
• Generic tests of CP-violation in high-$p_{\text{T}}$ multi-lepton signals at the LHC and beyond
• Corrections to $R_D$ and $R_{D^{\ast }}$ in the BLMSSM
• Status of G2HDM with right handed neutrino coupling in the light of $b\to c\tau \nu$ anomalies
• Experimental summary of the $52^{\mathrm{nd}}$ Rencontres de Moriond session on Electroweak Interactions and Unified Theories
• Flavour anomalies meet flavour symmetry
• Decay $B_c^{+}\to D_{(s)}^{(\ast )+}{\ell }^{+}{\ell }^{-}$ within covariant confined quark model
• Explaining the $\mathcal{R}(D)$ and $\mathcal{R}(D^{\ast })$ Anomalies in the $B-L$ Supersymmetric Standard Model with Inverse Seesaw
• Implications of new physics in $B\to K_1{\mu }^{+}{\mu }^{-}$ decay processes
• Precision Measurement of the Branching Fraction of $D^{+}\to {\mu }^{+}{\nu }_{\mu }$
• Quark and lepton flavor model with leptoquarks in a modular $A_4$ symmetry
• Hint of a new scalar interaction in LHCb data?
• Addressing the $R_{\tau /\mu ,e}\left(D^{(\ast )}\right)$ puzzle through New Physics four-fermion operators and their impact on ${\Lambda }_b\to {\Lambda }_c\tau {\bar{\nu }}_{\tau }$ decay
• Neutron decay into a Dark Sector via Leptoquarks
• Tensions in the flavour sector
• Flavour Physics from Present to Future Colliders
• Recent progress in decays of $b$ and $c$ hadrons
• Single Leptoquark Solutions to the $B$-physics Anomalies
• Is there really a $W\to \tau \nu$ puzzle?
• Searching for leptoquarks with the ATLAS detector
• Probing new physics at the LHC with $\mathrm{b}\tau \nu$ final states
• Prospects for $B_c^{+}\to {\tau }^{+}{\nu }_{\tau }$ at FCC-ee
• Probing Compressed Mass Spectrum Supersymmetry at the LHC with the Vector Boson Fusion Topology
• Rare b-hadron decays as probe of new physics
• Semitauonic B Decay Anomaly
• Probing Light Scalars and Vector-like Quarks at the High-Luminosity LHC
• Closing the Gap on $R_{D^{\ast }}$ by including longitudinal effects
• The QED nonfactorizable correction to the semileptonic charmed three-body $B$ decays
• Flavour Physics at LHCb -- 50 years of the KM paradigm
• ${\eta }_c$ leading-twist distribution amplitude and the $B_c\to {\eta }_c\ell {\bar{\nu }}_{\ell }$ semileptonic decays using QCD Sum Rules
• Joint LHCb--Belle II Prospects to Constrain New Physics in $B\to D^{(\ast )}\tau \nu$
• Extraction of $B_s\to D_s^{(\ast )}$ form factors from $N_f=2$ lattice QCD
• Tests of Lepton Flavour Universality with Semileptonic Decays at LHCb
• Weakly supervised anomaly detection with event-level variables
• Implications of lepton nonuniversality in the beauty sector
• Semi-leptonic Decay of Lambda-b in the Standard Model and with New Physics
• A self-calibrating, double-ratio method to test tau lepton universality in W boson decays at the LHC
• Recent results from the Belle experiment
• The Angular Observables of ${\Lambda }_b\to {\Lambda }_c(\to {\Lambda }^0{\pi }^{+}){\tau }^{-}(\to {\pi }^{-}{\nu }_{\tau }){\bar{\nu }}_{\tau }$ within the Paradigm of FCCC Anomalies
• Measurement of high-mass $t\bar{t}{\ell }^{+}{\ell }^{-}$ production and lepton flavour universality-inspired effective field theory interpretations at $\sqrt{s}=13$ TeV with the ATLAS detector
• Predictions for ${\Lambda }_b\to {\Lambda }_c\tau \bar{\nu }$ in BLSSM with Inverse seesaw
• Flavor Anomalies and Quark-Lepton Unification
• Diagnosing New Physics with LUV and LFV B Decays
• Indirect constraints on New Physics from the B-factories
• Rare B, D and K decays, radiative and electroweak penguin decays, including constraints on $V_{td}/V_{ts}$ and ${\epsilon }^{\prime }/\epsilon$: Summary of CKM 2018 working group 3
• New Physics Hints from Flavour
• Lepton universality tests and searches for new physics in charged current decays at Belle II
• Search for heavy neutral resonances decaying to tau lepton pairs in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• Leptoquarks in B-meson anomalies: simplified models and HL-LHC discovery prospects
• Theoretical implications of recent heavy flavour measurements at the LHC
• Single-top production and rare top interactions
• Leveraging intermediate resonances to probe CP violation at colliders
• The effects of polarization on the observables in the decay ${\Xi }_{cc}^{++}\to {\Xi }_c^{+}\bar{\ell }{\nu }_{\ell }$