Implications of scalar and tensor explanations of $R_{D^{(\ast )}}$

Abstract

We investigate the implications of scalar and tensor operators proposed to accommodate the hints of lepton flavor universality violation in charged-current $B$-meson decays. We show that these scenarios unavoidably induce chirality enhanced contributions to charged lepton magnetic moments and Yukawa couplings. By using an effective field theory approach we quantify in a model independent way the connection of the $R_{D^{(\ast )}}$ anomaly with the tau $g-2$ and the Higgs decay $h\to \tau \tau$, which can offer an alternative to test these scenarios. Concrete New Physics models giving rise to our setup will be illustrated.

25 pages, 7 figures, published version

References in corpus (29)

• B-physics anomalies: a guide to combined explanations
• On the B to D* tau nu Sensitivity to New Physics
• A three-site gauge model for flavor hierarchies and flavor anomalies
• Effective description of general extensions of the Standard Model: the complete tree-level dictionary
• Confronting lepton flavor universality violation in B decays with high-$p_T$ tau lepton searches at LHC
• Implications of lepton flavor universality violations in B decays
• Simultaneous Explanation of the $R_K$ and $R(D^{(\ast )})$ Puzzles
• Lepton Flavor Violation in B Decays?
• $B$ Meson Anomalies in a Pati-Salam Model within the Randall-Sundrum Background
• Gauge leptoquark as the origin of B-physics anomalies
• The lifetime of the $B_c^{-}$ meson and the anomalies in $B\to D^{(\ast )}\tau \nu$
• Baryon Number and Lepton Universality Violation in Leptoquark and Diquark Models
• $R(D^{\ast })$, $|V_{cb}|$, and the Heavy Quark Symmetry relations between form factors
• Leptoquark model to explain the $B$-physics anomalies, $R_K$ and $R_D$
• Scalar leptoquarks from GUT to accommodate the $B$-physics anomalies
• B-decay Anomalies in a Composite Leptoquark Model
• Renormalization-group evolution of new physics contributions to (semi)leptonic meson decays
• Extraction of $|V_{cb}|$ from $B\to D^{(\ast )}\ell {\nu }_{\ell }$ and the Standard Model predictions of $R(D^{(\ast )})$
• Leptoquark Flavor Patterns & B Decay Anomalies
• What is the scale of new physics behind the $B$-flavour anomalies?
• Constraint on the branching ratio of B_c \to tau nu from LEP1 and consequences for R(D(*)) anomaly
• $(g-2{)}_{\mu }$, Lepton Flavour Violation and $Z$ Decays with Leptoquarks: Correlations and Future Prospects
• Addressing the B-physics anomalies in a fundamental Composite Higgs Model
• B-decay anomalies in Pati-Salam SU(4)
• Massive vectors and loop observables: the $g-2$ case
• Low-energy Effects of Lepton Flavour Universality Violation
• Seeking leptoquarks in IceCube
• Minimal muon anomalous magnetic moment
• Flavour issues in warped custodial models: $B$ anomalies and rare $K$ decays

Cited by in corpus (45)

• Hunting for ALPs with Lepton Flavor Violation
• The Mono-Tau Menace: From $B$ Decays to High-$p_T$ Tails
• Global fit to $b\to c\tau \nu$ transitions
• Impact of polarization observables and $B_c\to \tau \nu$ on new physics explanations of the $b\to c\tau \nu$ anomaly
• Revisiting the vector leptoquark explanation of the B-physics anomalies
• The phenomenology of electric dipole moments in models of scalar leptoquarks
• Drell-Yan Tails Beyond the Standard Model
• Revisiting the new-physics interpretation of the $b\to c\tau \nu$ data
• $D^{\ast }$ polarization vs. $R_{D^{(\ast )}}$ anomalies in the leptoquark models
• Correlating $h\to {\mu }^{+}{\mu }^{-}$ to the Anomalous Magnetic Moment of the Muon via Leptoquarks
• Challenges in Semileptonic B Decays
• The electro-weak couplings of the top and bottom quarks -- global fit and future prospects
• A near-minimal leptoquark model for reconciling flavour anomalies and generating radiative neutrino masses
• Lepton Flavor Violation and Dilepton Tails at the LHC
• On lepton flavour universality in semileptonic $B_c\to {\eta }_c,J/\psi$ decays
• Vector Leptoquarks Beyond Tree Level III: Vector-like Fermions and Flavor-Changing Transitions
• Unitarity Bounds for Semileptonic Decays in Lattice QCD
• New physics at the MUonE experiment at CERN
• Minimal models for $g-2$ and dark matter confront asymptotic safety
• Gravitational Imprints of Flavor Hierarchies
• New Physics effects in leptonic and semileptonic decays
• Constraints for the semileptonic $B\to D^{(\ast )}$ form factors from lattice QCD simulations of two-point correlation functions
• Opportunities for new physics searches with heavy ions at colliders
• Correlating Tauonic B Decays to the Neutron EDM via a Scalar Leptoquark
• Inclusive semileptonic ${\Lambda }_b$ decays in the Standard Model and beyond
• Global fit to $b\to c\tau \nu$ anomalies as of Spring 2024
• Interplay of New Physics Effects in $(g-2{)}_{\ell }$ and $h\to {\ell }^{+}{\ell }^{-}$ -- Lessons from SMEFT
• R-parity violating solutions to the $R_{D^{(\ast )}}$ anomaly and their GUT-scale unifications
• Reflecting on chirality: CP-violating extensions of the single scalar-leptoquark solutions for the $(g-2{)}_{e,\mu }$ puzzles and their implications for lepton EDMs
• The Forward-Backward Asymmetry in $B\to D^{\ast }\ell \nu$: One more hint for Scalar Leptoquarks?
• BSM Hadronic Matrix Elements for ${\epsilon }^{\prime }/\epsilon$ and $K\to \pi \pi$ Decays in the Dual QCD Approach
• Revival of $H^{-}$ interpretation of $R_{D^{(\ast )}}$ anomaly and closing low mass window
• What is the scale of new physics behind the muon $g-2$?
• Implication of $R_{D^{(\ast )}}$ anomalies on semileptonic decays of ${\Sigma }_b$ and ${\Omega }_b$ baryons
• Leptoquarks and Real Singlets: A Richer Scalar Sector Behind the Origin of Dark Matter
• Implication of $b\to c\tau \nu$ flavor anomalies on $B_s\to D_s^{\ast }\tau \nu$ decay observables
• New physics footprints in the angular distribution of $B_s\to D_s^{\ast }(\to D_s\gamma ,D_s\pi )\tau \nu$ decays
• Probing new physics in semileptonic ${\Sigma }_b$ and ${\Omega }_b$ decays
• Flavour Violating Effects of Yukawa Running in SMEFT
• Interference Resurrection of the $\tau$ Dipole through Quantum Tomography
• Non-resonant Leptoquark with multigeneration couplings to $\mu \mu jj$ and $\mu \nu jj$ at LHC
• Effective Field Theory of Chirally-Enhanced Muon Mass and Dipole Operators
• Extra gauge bosons and lepton flavor universality violation in ${\rm Y}$ and $B$ meson decays
• Correlating $0\nu \beta \beta$ decays and flavor observables in leptoquark models
• $b\to c\tau {\bar{\nu }}_{e,\mu }$ contributions to $R(D^{(\ast )})$