Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of 2021

Abstract

This paper reports world averages of measurements of $b$-hadron, $c$-hadron, and $\tau$-lepton properties obtained by the Heavy Flavour Averaging Group using results available before April 2021. In rare cases, significant results obtained several months later are also used. For the averaging, common input parameters used in the various analyses are adjusted (rescaled) to common values, and known correlations are taken into account. The averages include branching fractions, lifetimes, neutral meson mixing parameters, CP violation parameters, parameters of semileptonic decays, and Cabibbo-Kobayashi-Maskawa matrix elements.

568 pages. Update following journal review. No results changed. arXiv admin note: substantial text overlap with arXiv:1909.12524, arXiv:1612.07233, arXiv:1412.7515, arXiv:1207.1158, arXiv:1010.1589

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• Observation of the resonant character of the $Z(4430{)}^{-}$ state
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• $\Delta M_s$ theory precision confronts flavour anomalies
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• Search for Majorana neutrinos in $B^{-}\to {\pi }^{+}{\mu }^{-}{\mu }^{-}$ decays
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• Bs mixing observables and Vtd/Vts from sum rules
• Measurements of $CP$ violation in the three-body phase space of charmless $B^{\pm }$ decays
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• Amplitude analysis of $B^{-}\to D^{+}{\pi }^{-}{\pi }^{-}$ decays
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• Measurement of the D+/- production asymmetry in 7 TeV pp collisions
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• Study of the kinematic dependences of ${\Lambda }_b^0$ production in $pp$ collisions and a measurement of the ${\Lambda }_b^0\to {\Lambda }_c^{+}{\pi }^{-}$ branching fraction
• Observation of the decay ${\Lambda }_b^0\to {\Lambda }_c^{+}{\tau }^{-}{\overline{\nu }}_{\tau }$
• On Indirect CP Violation and Implications for D0-\overline{D0} and Bs -\overline{Bs} mixing
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• Precise predictions for ${\Lambda }_b\to {\Lambda }_c$ semileptonic decays
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• Measurement of the lifetime of the B_c meson in the semileptonic decay channel
• Measurements of Direct CP Violating Asymmetries in Charmless Decays of Strange Bottom Mesons and Bottom Baryons
• Measurements of the properties of Lambda_c(2595), Lambda_c(2625), Sigma_c(2455), and Sigma_c(2520) baryons
• Measurement of the $\bar{B}\to X_s\gamma$ Branching Fraction with a Sum of Exclusive Decays
• Study of the decay mechanism for B+ to p pbar K+ and B+ to p pbar pi+
• Measurement of the ratio of branching fractions BR(B0 -> K*0 gamma)/BR(Bs0 -> phi gamma) and the direct CP asymmetry in B0 -> K*0 gamma
• Precision measurement of the mass and lifetime of the ${\Xi }_b^0$ baryon
• First Measurement of phi_3 with a Model-independent Dalitz Plot Analysis of B->DK, D->KsPiPi Decay
• First determination of the $CP$ content of $D\to {\pi }^{+}{\pi }^{-}{\pi }^{+}{\pi }^{-}$ and updated determination of the $CP$ contents of $D\to {\pi }^{+}{\pi }^{-}{\pi }^0$ and $D\to K^{+}{K}^{-}{\pi }^0$
• Measurement of the CP-violating phase $\beta$ in $B^0\to J/\psi {\pi }^{+}{\pi }^{-}$ decays and limits on penguin effects
• Updated constraints on new physics in rare charm decays
• Observation of direct CP violation in the measurement of the Cabibbo-Kobayashi-Maskawa angle gamma with B+- --> D(*)K(*)+- decays
• Semi-Inclusive B Decays and a Model for Soft-Gluon Effects
• Inclusive Measure of |V_ub| with the Analytic Coupling Model
• A Roadmap to Control Penguin Effects in $B_d^0\to J/\psi K_{\mathrm{S}}^0$ and $B_s^0\to J/\psi \varphi$
• |V_us| and m_s from hadronic tau decays
• Measurement of the semileptonic $CP$ asymmetry in $B^0-\overline{B}{}^0$ mixing
• Observation of $e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}{\pi }^0{\chi }_{bJ}$ and search for $X_b\to \omega {\rm Y}(1S)$ at $\sqrt{s}\sim 10.867$ GeV
• Discerning new physics in charm meson leptonic and semileptonic decays
• Time-Dependent CP Asymmetries in B0 -> Ks pi0 gamma transitions
• Evidence for the Suppressed Decay B- -> DK-, D -> K+pi-
• Determination of the D0 -> K+pi- Relative Strong Phase Using Quantum-Correlated Measurements in e+e- -> D0 D0bar at CLEO
• Measurements of Direct CP-Violating Asymmetries in Charmless Decays of Bottom Baryons
• Observation of the ${\Lambda }_b^0\to J/\psi p{\pi }^{-}$ decay
• Measurement of the $D\to K^{-}{\pi }^{+}$ strong phase difference in $\psi (3770)\to D^0\overline{D}{}^0$
• Measurement of the Decay B_s^0 -> D_s^- pi^+ and Evidence for B_s^0 -> D_s^{+/-} K^{-/+} in e+e- Annihilation at sqrt(s)~10.87 GeV
• Measurement of the lifetime of the $B_c^{+}$ meson using the $B_c^{+}\to J/\psi {\pi }^{+}$ decay mode
• Study of $\overline{B^0}\to D^0{\pi }^{+}{\pi }^{-}$ decays
• Analysis of the D+ --> K- pi+ e+ nu_e decay channel
• Measurement of CP violating asymmetries in B^0 -> K^+K^- K^0_S decays with a time-dependent Dalitz approach
• Extracting gamma and Penguin Topologies through CP Violation in B_s^0 -> J/psi K_S
• Measurement of the CP-violation parameter of B^0 mixing and decay with pp(bar) -> mu mu X data
• Measurement of $D^0$-$\overline{D}{}^0$ Mixing and Search for Indirect $CP$ Violation Using $D^0\to K_S^0{\pi }^{+}{\pi }^{-}$ Decays
• Precision measurement of the mass and lifetime of the Xi_b^- baryon
• Measurement of the Absolute Branching Fractions for $D_s^{-}\to {\ell }^{-}{\bar{\nu }}_{\ell }$ and Extraction of the Decay Constant $f_{D_s}$
• Flavour tagged time dependent angular analysis of the $B_s\to J/\psi \varphi$ decay and extraction of $\Delta \Gamma$ and the weak phase ${\varphi }_s$ in ATLAS
• Measurement of CP observables in B+- --> D_CP K+- decays and constraints on the CKM angle gamma
• Measurement of the parity-violating asymmetry parameter alpha_b and the helicity amplitudes for the decay Lambda_b->J/psi+Lambda with the ATLAS detector
• First determination of the CP content of D->pi+pi-pi0 and D->K+K-pi0
• First study of the CP-violating phase and decay-width difference in $B_s^0\to \psi (2S)\varphi$ decays
• Exploring $B_s\to D_s^{(\ast )\pm }{K}^{\mp }$ Decays in the Presence of a Sizable Width Difference $\Delta {\Gamma }_s$
• $D_s\to \eta ,{\eta }^{\prime }$ semileptonic decay form factors with disconnected quark loop contributions
• Search for $B^{+}\to {\mu }^{+}{\nu }_{\mu }$ and $B^{+}\to {\mu }^{+}N$ with inclusive tagging
• Measurement of CP Asymmetry in a Time-Dependent Dalitz Analysis of B^0 \to (ρπ)^0 and a Constraint on the Quark Mixing Matrix Angle ϕ_2
• On the Measurement of the Unitarity Triangle Angle gamma from B^0 -> DK^{*0} Decays
• Amplitude Analysis of B0-->K+ pi- pi0 and Evidence of Direct CP Violation in B--> K* pi decays
• Interpretation of the "$f_{D_s}$ puzzle" in SM and beyond
• $F_K/F_{\pi }$ from Möbius domain-wall fermions solved on gradient-flowed HISQ ensembles
• Measurement of the $D^0\to {\pi }^{-}{e}^{+}{\nu }_e$ differential decay branching fraction as a function of $q^2$ and study of form factor parameterizations
• B_s to K^(*)0 \bar K^(*)0 decays: the golden channels for new physics searches
• Measurement of $CP$ violation and constraints on the CKM angle $\gamma$ in $B^{\pm }\to D{K}^{\pm }$ with $D\to K_S^0{\pi }^{+}{\pi }^{-}$ decays
• Search for the Decays $B_{(s)}^0\to e^{+}{\mu }^{-}$ and $B_{(s)}^0\to e^{+}{e}^{-}$ in CDF Run II
• Dalitz plot analyses of $B^0\to D^{-}{D}^0{K}^{+}$ and $B^{+}\to {\overline{D}}^0{D}^0{K}^{+}$ decays
• First observation of the decay $B_s^0\to K^{-}{\mu }^{+}{\nu }_{\mu }$ and a measurement of $|V_{ub}|/|V_{cb}|$
• Observation of $D^0$ meson decays to ${\pi }^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ and $K^{+}{K}^{-}{\mu }^{+}{\mu }^{-}$ final states
• Measurement of $CP$ observables in $B^{\pm }\to D^{(\ast )}{K}^{\pm }$ and $B^{\pm }\to D^{(\ast )}{\pi }^{\pm }$ decays
• Measurement of b hadron lifetimes in exclusive decays containing a J/psi in p-pbar collisions at sqrt(s)=1.96TeV
• Mass and lifetime measurements of bottom and charm baryons in $p\bar{p}$ collisions at $\sqrt{s}= 1.96 TeV
• Search for Time-Dependent CPT Violation in Hadronic and Semileptonic B Decays
• Evidence for Isospin Violation and Measurement of $CP$ Asymmetries in $B\to K^{\ast }(892)\gamma$
• First experimental study of photon polarization in radiative $B_s^0$ decays
• Normalizing inclusive rare B decays
• Radial Excitations of Heavy Mesons
• Measurement of the Dynamics of the Decays $D_s^{+}\to {\eta }^{(\prime )}{e}^{+}{\nu }_e$
• Measurement of the ratio of the production cross sections times branching fractions of Bc+/- to J/psi pi+/- and B+/- to J/psi K+/- and B(Bc+/- to J/psi pi+/- pi+/- pi-/+)/B(Bc+/- to J/psi pi+/-) in pp collisions at sqrt(s) = 7 TeV
• Measurement of Bd mixing using opposite-side flavor tagging
• Measurement of the $D_s^{+}\to {\ell }^{+}{\nu }_{\ell }$ branching fractions and the decay constant $f_{D_s^{+}}$
• Bottomonium-like states: physics case for energy scan above the $B\bar{B}$ threshold at Belle-II
• Measurement of the B0_s semileptonic branching ratio to an orbitally excited D_s** state, Br(B0_s -> Ds1(2536) mu nu)
• Improved search for D^0 mixing using semileptonic decays at Belle
• Search for $B_s^0\to \gamma \gamma$ and a measurement of the branching fraction for $B_s^0\to \varphi \gamma$
• Prospects for the Measurement of the Unitarity Triangle Angle gamma from B0 to DK+pi- Decays
• Measurements of CP Violation in $B^0\to D^{\ast -}{\pi }^{+}$ and $B^0\to D^{-}{\pi }^{+}$ Decays
• Observation of the decay $B_s^0\to \varphi {\pi }^{+}{\pi }^{-}$ and evidence for $B^0\to \varphi {\pi }^{+}{\pi }^{-}$
• Determination of quantum numbers for several excited charmed mesons observed in $B^{-}\to D^{\ast +}{\pi }^{-}{\pi }^{-}$ decays
• Observation of a new excited $D_s^{+}$ meson in $B^0\to D^{-}{D}^{+}{K}^{+}{\pi }^{-}$ decays
• Observation of the annihilation decay mode $B^0\to K^{+}{K}^{-}$
• Measurements of the branching fractions and CP asymmetries of B+ to J/psi pi+ and B+ to psi(2S) pi+ decays
• Study of $B_c^{+}$ decays to the $K^{+}{K}^{-}{\pi }^{+}$ final state and evidence for the decay $B_c^{+}\to {\chi }_{c0}{\pi }^{+}$
• Measurement of the Lambda_b lifetime using semileptonic decays
• Observation of $B_c^{+}\to D^0{K}^{+}$ decays
• Measurement of CP Asymmetries and Branching Fractions in a Time-Dependent Dalitz Analysis of B^0-->(rho pi)^0 and a Constraint on the Quark Mixing Angle phi_2
• Measurement of the Lambda_b^0 lifetime in the exclusive decay Lambda_b^0 -> J/psi Lambda^0 in ppbar collisions at sqrt(s)=1.96 TeV
• Search for CP Violation in the Decay D+/- -> Ks pi+/-
• D^0 -> gamma gamma and D^0 -> mu^+ mu^- Rates on an Unlikely Impact of the Littlest Higgs Model with T-Parity
• Measurement of the B -> Dbar(*)D(*)K branching fractions
• Measurement of $CP$ observables in $B^{\pm }\to D^{(\ast )}{K}^{\pm }$ and $B^{\pm }\to D^{(\ast )}{\pi }^{\pm }$ decays using two-body $D$ final states
• Measurement of the Moments of the Photon Energy Spectrum in B -> X_s gamma Decays and Determination of |V_cb| and m_b at Belle
• Study of the K+ pi+ pi- Final State in B+ -> J/psi K+ pi+ pi- and B+ -> psi-prime K+ pi+ pi-
• Measurement of the time-dependent CP asymmetry in B0 -> J/ψ KS0 decays
• Observation of B0 to Lambda Lambdabar K0 and B0 to Lambda Lambdabar K*0 at Belle
• Searches for the baryon- and lepton-number violating decays $B^0\to {\Lambda }_c^{+}{\ell }^{-}$, $B^{-}\to \Lambda {\ell }^{-}$, and $B^{-}\to \bar{\Lambda }{\ell }^{-}$
• Searching for New Physics in b to s Hadronic Penguin Decays
• Improved model-independent determination of the strong-phase difference between $D^0$ and ${\bar{D}}^0\to K_{\mathrm{S},\mathrm{L}}^0{K}^{+}{K}^{-}$ decays
• Evidence for B-> eta' pi and improved measurements for B-> eta' K
• Search for CP violation in D^0 -> pi^0 pi^0 decays
• Measurements of the branching fractions of the decays $B_s^0\to D_s^{\mp }{K}^{\pm }$ and $B_s^0\to D_s^{-}{\pi }^{+}$
• Measurement of $B\to D_s^{(\ast )}K\pi$ branching fractions
• Search for $B\to \pi {\ell }^{+}{\ell }^{-}$ Decays at Belle
• Study of $\eta -{\eta }^{\prime }$ mixing from measurement of $B_{(s)}^0\to J/\psi {\eta }^{(\prime )}$~decay rates
• Search for $B_s\to {\mu }^{+}{\mu }^{-}$ and $B_d\to {\mu }^{+}{\mu }^{-}$ decays with the full CDF Run II data set
• Measurement of indirect CP-violating asymmetries in $D^0\to K^{+}{K}^{-}$ and $D^0\to {\pi }^{+}{\pi }^{-}$ decays at CDF
• Observation of $CP$ violation in two-body $B_{(\mathrm{s})}^0$-meson decays to charged pions and kaons
• Measurement of CP-violation asymmetries in D0 to Ks pi+ pi-
• Measurement of the $B_c^{-}$ meson lifetime in the decay $B_c^{-}\to J/\psi {\pi }^{-}$
• Lattice QCD matrix elements for the $B_s^0-{\bar{B}}_s^0$ width difference beyond leading order
• Search for rare and forbidden decays of charm and charmed-strange mesons to final states h^+- e^-+ e^+
• Search for CP Violation in the Decay $D^{+}\to K_S^0{K}^{+}$
• Observation of $B_c^{+}\to J/\psi D^{(\ast )}{K}^{(\ast )}$ decays
• Measurement of the ${\Xi }_b^{-}$ and ${\Omega }_b^{-}$ baryon lifetimes
• Measurement of the B0 -> Lambda-bar p pi Branching Fraction and Study of the Decay Dynamics
• Effective lifetime measurements in the $B_s^0\to K^{+}{K}^{-}$, $B^0\to K^{+}{\pi }^{-}$ and $B_s^0\to {\pi }^{+}{K}^{-}$ decays
• Measurement of the $B_s^0\to J/\psi K_S^0$ branching fraction
• Search for decays of neutral beauty mesons into four muons
• Study of Electromagnetic Decays of Orbitally Excited ${\Xi }_c$ Baryons
• Measurements of Direct CP Asymmetries in B to X_s gamma decays using Sum of Exclusive Decays
• Proposal to study $B_s\to {\bar{D}}_{sJ}$ transitions
• Search for $D^0$ decays to invisible final states at Belle
• Search for CP violation in the Decays $D^{\pm }\to K_S^0{K}^{\pm }$, $D_s^{\pm }\to K_S^0{K}^{\pm }$, and $D_s^{\pm }\to K_S^0{\pi }^{\pm }$
• Study of $\mathbf{D}\to {\mathbf{a}}_0(980){\mathbf{e}}^{+}{\mathbf{\nu }}_{\mathbf{e}}$ decay in the light-cone sum rules approach
• Amplitude analysis of $B_s^0\to K_{\text{S}}^0{K}^{\pm }{\pi }^{\mp }$ decays
• Measurement of the Absolute Branching Fraction of $D_s^{+}\to {\tau }^{+}{\nu }_{\tau }$ via ${\tau }^{+}\to e^{+}{\nu }_e{\bar{\nu }}_{\tau }$
• The Matrix of Unitarity Triangle Angles for Quarks
• Measurement of the angular and lifetime parameters of the decays $B_d^0\to J/\psi K^{\ast 0}$ and $B_s^0\to J/\psi \varphi$
• A Search for the Decay B^0 -> gamma gamma
• Measurement of Bs0 --> Ds(*)+ Ds(*)- Branching Ratios
• Measurement of CP violation in the decay $B^{+}\to K^{+}{\pi }^0$
• Study of CP asymmetry in B0-B0bar mixing with inclusive dilepton events
• Search for B_{s}^{0}->hh Decays at the ${\rm Y}(5S)$ Resonance
• Differential branching fraction and angular moments analysis of the decay $B^0\to K^{+}{\pi }^{-}{\mu }^{+}{\mu }^{-}$ in the $K_{0,2}^{\ast }(1430{)}^0$ region
• Search for b --> u Transitions in B^{+-} --> [K^{-+} pi^{+-} pi0]_D K^{+-} Decays
• Observation of Bs->Ds(*)+Ds(*)- using e+e- collisions and a determination of the Bs-Bsbar width difference ΔΓ_s
• Study of the baryonic B decay B- -> SigmaC++ p- pi- pi-
• Measurements of the absolute branching fractions for $D_s^{+}\to \eta e^{+}{\nu }_e$ and $D_s^{+}\to {\eta }^{\prime }{e}^{+}{\nu }_e$
• Measurement of $y_{CP}$ in $D^0-{\overline{D}}^0$ oscillation using quantum correlations in $e^{+}{e}^{-}\to D^0{\overline{D}}^0$ at $\sqrt{s}$ = 3.773\,GeV
• Measurements of Charmless Hadronic b->s Penguin Decays in the pi+pi-K+pi- Final State and First Observation of B0 -> rho0K+pi-
• Search for direct CP-violation in singly-Cabibbo suppressed D+- --> K+ K- pi+- decays
• Study of $\eta$ and dipion transitions in ${\rm Y}(4S)$ decays to lower bottomonia
• Measurement of the CKM angle $\gamma$ and $B_s^0$-${\bar{B}}_s^0$ mixing frequency with $B_s^0\to D_s^{\mp }{h}^{\pm }{\pi }^{\pm }{\pi }^{\mp }$ decays
• Measurement of Branching Fraction and First Evidence of CP Violation in B0 --> a1+-(1260) pi-+ Decays
• Measurement of $CP$ violation in $B^0\to D^{+}{D}^{-}$ decays
• Search for the decay $D_s^{+}\to \gamma e^{+}{\nu }_e$
• Amplitude analysis of the $B_{(s)}\to K^{\ast 0}{\overline{K}}^{\ast 0}$ decays and measurement of the branching fraction of the $B\to K^{\ast 0}{\overline{K}}^{\ast 0}$ decay
• Study of the Decays $D_s^{+}\to K_S^0{K}^{+}$ and $K_L^0{K}^{+}$
• Search for $D^0\to \gamma \gamma$ and improved measurement of the branching fraction for $D^0\to {\pi }^0{\pi }^0$
• Search for $CP$ violation in $D_s^{+}\to K_S^0{\pi }^{+}$, $D^{+}\to K_S^0{K}^{+}$ and $D^{+}\to \varphi {\pi }^{+}$ decays
• First observation of the rare purely baryonic decay $B^0\to p\bar{p}$
• Measurements of charge and CP asymmetries in $b$-hadron decays using top-quark events collected by the ATLAS detector in $pp$ collisions at $\sqrt{s}=8$ TeV
• Measurement of Time-Dependent CP-Violating Parameters in B0 -> K0S K0S decays
• Evidence for the decay B_s^0 --> D_s^(*)D_s^(*) and a measurement of Delta_Gamma_s^CP/Gamma_s
• Measurement of the $B_s^0$ lifetime in the flavor-specific decay channel $B_s^0\to D_s^{-}{\mu }^{+}\nu X$
• Search for heavy Majorana neutrino in lepton number violating decays of D-> K pi e+ e+
• Search for baryon-number-violating ${\Xi }_b^0$ oscillations
• Measurement of the $B_s^0\to J/\psi \eta$ lifetime
• Search for the suppressed decays $B^{+}\to K^{+}{K}^{+}{\pi }^{-}$ and $B^{+}\to {\pi }^{+}{\pi }^{+}{K}^{-}$
• Search for $B^0\to J/\psi \varphi$
• Measurements of branching fractions and CP asymmetries and studies of angular distributions for B to phi phi K decays
• Observation of the decay ${\Xi }_b^{-}\to p{K}^{-}{K}^{-}$
• Measurement of charmless $B$ Decays to $\eta K^{\ast }$ and $\eta \rho$
• Observation of the Doubly Cabibbo-Suppressed Decay $D^{+}\to K^{+}{\pi }^{+}{\pi }^{-}{\pi }^0$ and Evidence for $D^{+}\to K^{+}\omega$
• Evidence for Neutral B Meson Decays to wK*0
• Observation of B^{\pm} \to χ_{c1} π^{\pm} and Search for Direct CP Violation
• Study of the suppressed B meson decay B^- -> D K^-, D -> K^+ π^-
• First observation of the decays ${\bar{B}}_{(s)}^0\to D_s^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ and ${\bar{B}}_s^0\to D_{s1}(2536{)}^{+}{\pi }^{-}$
• Updated branching fraction measurements of $B_{(s)}^0\to K_{\mathrm{S}}^0{h}^{+}{h}^{\prime -}$ decays
• Measurement of Time-Dependent $CP$ Violation in $B^0\to {\eta }^{\prime }{K}^0$ Decays
• Search for lepton-flavor violating decays $D^0\to X^0{e}^{\pm }{\mu }^{\mp }$
• Study of the decays B->D_s1(2536)+ anti-D(*)
• CP Asymmetries in B to f_0 K_S Decays
• Measurement of the CKM angle ${\phi }_1$ in $B^0\to \bar{D}{}^{(\ast )0}{h}^0$, $\bar{D}{}^0\to K_S^0{\pi }^{+}{\pi }^{-}$ decays with time-dependent binned Dalitz plot analysis
• Search for the decay Bs -> D*-+ π+-
• Measurements of the absolute branching fractions and $CP$ asymmetries for $D^{+}\to K_{S,L}^0{K}^{+}({\pi }^0)$
• Updated Search for the Flavor-Changing Neutral-Current Decay D^0 \to μ + μ-
• Measurement of the B^0 -> D^*- pi^+ pi^- pi^+ branching fraction
• Search for \bar{B}^0\toΛ_c^+\barΛ_c^- decay at Belle
• Measurement of the $B^{-}$ lifetime using a simulation free approach for trigger bias correction
• Relative rates of B meson decays into psi(2S) and J/psi mesons
• Observation of $e^{+}{e}^{-}\to D_s^{+}\overline{D}{}^{(\ast )0}{K}^{-}$ and study of the $P$-wave $D_s$ mesons
• Evidence for the decay B0->eta pi^0
• Search for the decay $B^{+}\to \overline{K}{}^{\ast 0}{K}^{\ast +}$ at Belle
• Selected Topics in Heavy Flavour Physics
• Measurement of the direct CP-violating parameter A_CP in the decay D+ -> K- pi+ pi+
• Evidence for $B^0\to {\chi }_{c1}{\pi }^0$ at Belle
• Measurement of the ratio of branching fractions of the decays ${\Lambda }_b^0\to \psi (2S)\Lambda$ and ${\Lambda }_b^0\to J/\psi \Lambda$
• First observation of CP violation and improved measurement of the branching fraction and polarization of B0 -> D*+ D*- decays
• Measurement of time-dependent CP violation parameters in $B^0\to K_0^S{K}_0^S{K}_0^S$ decays at Belle
• Search for B+ -> D*+ pi0 decay
• Evidence for the decay $B^0\to p\bar{p}{\pi }^0$
• Search for B+ -> D+ K0 and B+-> D+ K*0 decays
• Observation of the decay B+ to psi(2S) phi(1020) K+ in pp collisions at sqrt(s) = 8 TeV
• Measurement of partial branching fractions of inclusive charmless B meson decays to K+, K0, and pi+
• Observation of the baryonic decay ${\bar{B}}^0\to {\Lambda }_c^{+}\bar{p}{K}^{-}{K}^{+}$
• Measurements of branching fraction and direct $CP$ asymmetry in $B^{\pm }\to K_S^0{K}_S^0{K}^{\pm }$ and a search for $B^{\pm }\to K_S^0{K}_S^0{\pi }^{\pm }$
• Search for the Decay $B_s^0\to {\eta }^{\prime }\eta$
• Measurement of branching fraction and final-state asymmetry for the ${\bar{B}}^0\to K_S^0{K}^{\mp }{\pi }^{\pm }$ decay

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• Measurement of the ratios of branching fractions $\mathcal{R}(D^{\ast })$ and $\mathcal{R}(D^0)$
• Test of lepton flavour universality using $B^0\to D^{\ast -}{\tau }^{+}{\nu }_{\tau }$ decays with hadronic $\tau$ channels
• Understanding the first measurement of $\mathcal{B}(B\to K\nu \bar{\nu })$
• Anomalies in Particle Physics
• Observation of charge-parity symmetry breaking in baryon decays
• $SU(2{)}_L$ triplet scalar as the origin of the 95 GeV excess?
• Measurement of Differential Distributions of $B\to D^{\ast }\ell {\bar{\nu }}_{\ell }$ and Implications on $|V_{cb}|$
• Global fit to $b\to c\tau \nu$ anomalies as of Spring 2024
• Final-state interactions in the CP asymmetries of charm-meson two-body decays
• Review of Semileptonic $B$ Anomalies
• $B\to D^{\ast }\ell {\nu }_{\ell }$ semileptonic form factors from lattice QCD with Möbius domain-wall quarks
• D-meson semileptonic decays to pseudoscalars from four-flavor lattice QCD
• Discriminating $B\to D^{\ast }\ell \nu$ form factors via polarization observables and asymmetries
• Analytic three-loop QCD corrections to top-quark and semileptonic $b\to u$ decays
• Two is better than one: The U-spin-CP anomaly in charm
• Exclusive semileptonic $B_s\to K\ell \nu$ decays on the lattice
• Determination of $|V_{cb}|$ using ${\overline{B}}^0\to D^{\ast +}{\ell }^{-}{\bar{\nu }}_{\ell }$ decays with Belle II
• Coup de grace to the charged Higgs solution of $P_5^{\prime }$ and $R_{D^{(\ast )}}$ discrepancies
• Measurement of CP violation in $B^0\to \psi (\to {\ell }^{+}{\ell }^{-})K_S^0(\to {\pi }^{+}{\pi }^{-})$ decays
• Study of $\itΛ_{\it{b}}^\rm{0}$ and $\itΞ_{\it{b}}^\rm{0}$ decays to $\Lambda h^{+}{h}^{{}^{\prime }-}$ and evidence for $CP$ violation in $\itΛ_{\it{b}}^\rm{0}\to\itΛ K^+K^-$ decays
• $CP$ violation in $b\to s\ell \ell$: a model independent analysis
• UV physics from IR features: new prospects from top flavor violation
• Prospects for $B_c^{+}$ and $B^{+}\to {\tau }^{+}{\nu }_{\tau }$ at FCC-ee
• Anomalies in Hadronic $B$ Decays
• Structure-Dependent QED Effects in Exclusive B Decays at Subleading Power
• The first limit on invisible decays of $B_s$ mesons comes from LEP
• Search for the lepton flavour violating decays $B^{+}\to K^{+}{\tau }^{\pm }{\ell }^{\mp }$ ($\ell =e,\mu$) at Belle
• Measurement of the branching fraction ratios $R(D^{+})$ and $R(D^{\ast +})$ using muonic $\tau$ decays
• 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
• Flavor Physics at the CEPC: a General Perspective
• Right-handed interactions in puzzling $B$-decays
• Diquark Explanation of $b\to s{\ell }^{+}{\ell }^{-}$
• The heavy quark expansion for lifetimes: Towards the QCD corrections to power suppressed terms
• Improved measurement of $CP$ violation parameters in $B_s^0\to J/\psi K^{+}{K}^{-}$ decays in the vicinity of the $\varphi (1020)$ resonance
• Is there a (Pseudo)Scalar at 95 GeV?
• Dispersive constraints on fermion masses
• Measurement of the $D^{\ast }$ longitudinal polarization in $B^0\to D^{\ast -}{\tau }^{+}{\nu }_{\tau }$ decays
• $B\to \rho \ell \bar{\nu }$ resonance form factors from $B\to \pi \pi \ell \bar{\nu }$ in lattice QCD
• Lepton flavor violation by two units
• The Muon Magnetic Moment and Physics Beyond the Standard Model
• First lattice QCD calculation of $J/\psi$ semileptonic decay containing $D$ and $D_s$ particles
• Third order correction to semileptonic $b\to u$ decay: fermionic contributions
• First Measurement of $R(X_{\tau /\ell })$ as an Inclusive Test of the $b\to c\tau \nu$ Anomaly
• Current Status of the Muon g-2 Interpretations within Two-Higgs-Doublet Models
• 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
• Flavor physics in SU(5) GUT with scalar fields in the 45 representation
• Measurement of branching fractions and direct $CP$ asymmetries for $B\to K\pi$ and $B\to \pi \pi$ decays at Belle II
• Flavor Physics Constraints on Left-Right Symmetric Models with Universal Seesaw
• Quantum Coherence of Critical Unstable Two-Level Systems
• Improved measurement of the branching fraction of $D_s^{+}\to {\mu }^{+}{\nu }_{\mu }$
• Search for time-dependent $CP$ violation in $D^0\to {\pi }^{+}{\pi }^{-}{\pi }^0$ decays
• Search for a new $Z^{\prime }$ gauge boson via the $pp\to W^{\pm (\ast )}\to Z^{\prime }{\mu }^{\pm }\nu \to {\mu }^{\pm }{\mu }^{\mp }{\mu }^{\pm }\nu$ process in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
• Measurement of $CP$ violation in $B^0\to K_S^0{\pi }^0$ decays at Belle II
• Collider-Flavour Complementarity from the bottom to the top
• Baryonic heavy-to-light form factors induced by tensor current in light-front approach
• Finding flavons at colliders
• Observation of $D^{+}\to {\eta }^{\prime }{\mu }^{+}{\nu }_{\mu }$ and First Study of $D^{+}\to {\eta }^{\prime }{\ell }^{+}{\nu }_{\ell }$ Decay Dynamics
• $B_{(s)}\to D_{(s)}^{\ast \ast }$ form factors in HQEFT and model independent analysis of relevant semileptonic decays with NP effects
• Low-mass enhancement of kaon pairs in $B^{+}\to {\bar{D}}^{(\ast )0}{K}^{+}{\bar{K}}^0$ and $B^0\to D^{(\ast )-}{K}^{+}{\bar{K}}^0$ decays
• Test of lepton flavor universality with measurements of $R(D^{+})$ and $R(D^{\ast +})$ using semileptonic $B$ tagging at the Belle II experiment
• MeV Sterile Neutrino in light of the Cabibbo-Angle Anomaly
• Role of $\rho -\omega$ interference in semileptonic $B\to {\pi }^{+}{\pi }^{-}\ell {\bar{\nu }}_{\ell }$ decays
• Measurement of the dependence of the hadron production fraction ratio $f_{\mathrm{s}}/f_{\mathrm{u}}$ and $f_{\mathrm{d}}/f_{\mathrm{u}}$ on B meson kinematic variables in proton-proton collisions at $\sqrt{s}$ = 13 TeV
• First Simultaneous Determination of Inclusive and Exclusive $\left|V_{ub}\right|$
• Measurement of $D^0-{\overline{D}}^0$ mixing and search for $CP$ violation with $D^0\to K^{+}{\pi }^{-}$ 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
• $B_c$ to $A$ Transition Form Factors and Semileptonic Decays in Self-consistent Covariant Light-front Approach
• Semileptonic baryon decays ${\Xi }_b\to {\Xi }_c{\ell }^{-}{\bar{\nu }}_{\ell }$ in perturbative QCD
• Machine Learning Approaches to Top Quark Flavor-Changing Four-Fermion Interactions in Trilepton Signals at the LHC
• Analysis of $b\to c\tau {\bar{\nu }}_{\tau }$ anomalies using weak effective Hamiltonian with complex couplings
• Probing Type-I 2HDM light Higgs in the top-pair-associated diphoton channel
• First Measurement of the Decay Dynamics in the Semileptonic Transition of the $D^{+(0)}$ into the Axial-vector Meson ${\bar{K}}_1(1270)$
• Measurement of the time-integrated CP asymmetry in $D^0\to K_S^0{K}_S^0$ decays using Belle and Belle II data
• Assessing Lepton Flavor Universality Violations in Semileptonic Decays
• Evidence for $B^{-}\to D^{\ast \ast 0}{\tau }^{-}\overline{{\nu }_{\tau }}$ decays
• Flavor phenomenology of an extended 2HDM with inverse seesaw mechanism
• Electric Dipole Moments as Probes of $B$ Anomaly
• Questions of flavor physics and neutrino mass from a flipped hypercharge
• Lepton Flavor Violation: From Muon Decays to Muon Colliders
• How to tame penguins: Advancing to high-precision measurements of ${\varphi }_d$ and ${\varphi }_s$
• Search for the Rare Decays $D_s^{+}\to h^{+}(h^0)e^{+}{e}^{-}$
• Transforming jet flavour tagging at ATLAS
• Phenomenology of the dark matter sector in the 2HDM extended with complex scalar singlet
• Observation of time-dependent $CP$ violation and measurement of the branching fraction of $B^0\to J/\psi {\pi }^0$ decays
• Exploring the $\tau$ polarization in $B\to X\tau \bar{\nu }$ along different axes
• Determination of Strong Coupling Constant from Inclusive Semileptonic Decays of Charmed Mesons
• Measurement of $CP$ asymmetries in $B^0\to \varphi K_S^0$ decays with Belle II
• Observation of $D\to {\bar{K}}_1(1270){\mu }^{+}{\nu }_{\mu }$ and test of lepton flavor universality with $D\to {\bar{K}}_1(1270){\ell }^{+}{\nu }_{\ell }$
• Exploring the exclusive decay $B^{+}\to \omega {\ell }^{+}\nu$ with light-cone sum rules
• Measurement of the ratio of the B${}_{\mathrm{c}}^{+}$ $\to$ J/$\psi$${\tau }^{+}{\nu }_{\tau }$ and B${}_{\mathrm{c}}^{+}$ $\to$ J/$\psi$ ${\mu }^{+}{\nu }_{\mu }$ branching fractions using three-prong $\tau$ lepton decays
• Explaining the $\mathcal{R}(D)$ and $\mathcal{R}(D^{\ast })$ Anomalies in the $B-L$ Supersymmetric Standard Model with Inverse Seesaw
• Flavour anomalies meet flavour symmetry
• Explaining the $B_{d(s)}\to K^{(\ast )}{\bar{K}}^{(\ast )}$ puzzle via chiral-flip in $R$-parity violating MSSM with seesaw mechanism
• Neutron decay into a Dark Sector via Leptoquarks
• The QED nonfactorizable correction to the semileptonic charmed three-body $B$ decays
• Visualisation of $CP$-violation effects in decay-time-dependent analyses of multibody $B$-meson decays
• Is the muon a third family lepton?
• Measurement of the time-integrated $CP$ asymmetry in $D^0\to {\pi }^0{\pi }^0$ decays at Belle II
• $B_s^0\to {\mu }^{+}{\mu }^{-}$ in a flavor violating extension of MSSM
• Minimal U(1) two-Higgs-doublet models for quark and lepton flavour
• Model Dependent Analysis of D_((s))^+ arrows η^((')) l^+ ν_l Decays in Beyond Standard Model
• Model-independent measurement of $D^0$-$\overline{D}{}^0$ mixing parameters in $D^0\to K_S^0{\pi }^{+}{\pi }^{-}$ decays at Belle and Belle II
• Measurement of the CKM angle $\gamma$ in the $B^0\to D{K}^{\ast 0}$ channel using self-conjugate $D\to K_S^0{h}^{+}{h}^{-}$ decays
• Precision measurement of the $B^0$ meson lifetime using $B^0\to J/\psi K^{\ast 0}$ decays with the ATLAS detector
• Phenomenological study of a gauged $L_{\mu }-L_{\tau }$ model with a scalar leptoquark
• Phenomenological analysis of charmless $B\to PV$ decays in the modified perturbative QCD approach
• Probing the inner structures of the observed ${\Xi }_b$ and ${\Xi }_b^{\prime }$ resonances
• Nelson-Barr Models with Vector-Like Quark Doublets
• A unified scheme for calculating the exclusive semi-leptonic decays of hadrons
• Lepton Flavour Universality tests in $b\to cl\nu$ decays at LHCb
• Leveraging intermediate resonances to probe CP violation at colliders
• Charmless $B\to PPP$ Decays: the Fully-Antisymmetric Final State
• $D^{\ast }D\pi$ and $B^{\ast }B\pi$ couplings from Dyson-Schwinger equations framework
• Spontaneous CP Violation and Flavor Changing Neutral Currents in Minimal SO(10)
• $B\to X_c\ell \bar{\nu }$ Decay as a Probe of Complex Conjugate Poles
• New constraints on CPT symmetry violation in charm mesons
• Measurement of the strong-phase difference between $D^0$ and $\overline{D^0}\to K^{+}{K}^{-}{\pi }^{+}{\pi }^{-}$ in bins of phase space
• Branching fraction, $CP$ asymmetry, and polarization in $B\to \rho \rho$ decays with the modified perturbative QCD approach
• Search for the radiative leptonic decay $D^{+}\to \gamma e^{+}{\nu }_e$ using Deep Learning
• Weakly supervised anomaly detection with event-level variables
• Towards a test of the Born rule in high-energy collisions
• Two Higgs doublet model fitting and $t\bar{t}b\bar{b}$ signal at the ILC
• Lepton universality tests and searches for new physics in charged current decays at Belle II
• Belle II Constraints on the Non-Minimal Universal Extra Dimensional Model
• On magnitudes of some CKM matrix elements
• Measurement of $CP$ asymmetries in $B^0\to {\eta }^{\prime }{K}_s^0$ decays at Belle II
• First search for $B\to X_s\nu \bar{\nu }$ decays