Stringy explanation of $b\to s{\ell }^{+}{\ell }^{-}$ anomalies

Abstract

We show that the recent anomalies in $b\to s{\ell }^{+}{\ell }^{-}$ transitions observed by the LHCb collaboration can be accommodated within string motivated models with a low mass $Z^{\prime }$ gauge boson. Such $Z^{\prime }$ gauge boson can be obtained in compactifications with a low string scale. We consider a class of intersecting D-brane models, in which different families of quarks and leptons are simultaneously realized at different D-brane intersections. The explanation of $b\to s{\ell }^{+}{\ell }^{-}$ anomalies via a stringy $Z^{\prime }$ sets important restrictions on these viable D-brane constructions.

18 pages, 13 figures

References in corpus (26)

• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Four-dimensional String Compactifications with D-Branes, Orientifolds and Fluxes
• Explaining $h\to {\mu }^{\pm }{\tau }^{\mp }$, $B\to K^{\ast }{\mu }^{+}{\mu }^{-}$ and $B\to K{\mu }^{+}{\mu }^{-}/B\to K{e}^{+}{e}^{-}$ in a two-Higgs-doublet model with gauged $L_{\mu }-L_{\tau }$
• Addressing the LHC flavour anomalies with horizontal gauge symmetries
• Neutrino Majorana Masses from String Theory Instanton Effects
• Hint of Lepton Flavour Non-Universality in $B$ Meson Decays
• Family non-universal Z' models with protected flavor-changing interactions
• Lepton Flavor Non-Universality in B-meson Decays from a U(2) Flavor Model
• Reassessing the discovery potential of the $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays in the large-recoil region: SM challenges and BSM opportunities
• Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
• A Dark Matter Relic From Muon Anomalies
• Violation of lepton flavour universality in composite Higgs models
• Predictions for Lepton Flavor Universality Violation in Rare B Decays in Models with Gauged $L_{\mu }-L_{\tau }$
• Z' physics with early LHC data
• Diagnosing lepton-nonuniversality in $b\to s\ell \ell$
• The LHC String Hunter's Companion
• Bounding wide composite vector resonances at the LHC
• Global fits to b -> s ll data and signs for lepton non-universality
• The Anatomy of Z' and Z with Flavour Changing Neutral Currents in the Flavour Precision Era
• Implications of $b\to s$ measurements
• Anomaly driven signatures of new invisible physics at the Large Hadron Collider
• Stringy origin of Tevatron Wjj anomaly
• Probing the Green-Schwarz Mechanism at the Large Hadron Collider
• Stringy origin of diboson and dijet excesses at the LHC
• String Resonances at Hadron Colliders
• Z' boson detection in the Minimal Quiver Standard Model

Cited by in corpus (25)

• On the anomalies in the latest LHCb data
• New Physics in $b\to s{\mu }^{+}{\mu }^{-}$ after the Measurement of $R_{K^{\ast }}$
• Phenomenology of an $SU(2)\times SU(2)\times U(1)$ model with lepton-flavour non-universality
• Lepton Flavor Violation in Exclusive $b\to s$ Decays
• Gauge-invariant implications of the LHCb measurements on Lepton-Flavour Non-Universality
• A leptoquark model to accommodate $R_K^{\exp }<R_K^{\mathrm{SM}}$ and $R_{K^{\ast }}^{\exp }<R_{K^{\ast }}^{\mathrm{SM}}$
• $B$ Flavour Anomalies: 2021 Theoretical Status Report
• New Physics in $b\to s{\mu }^{+}{\mu }^{-}$: Distinguishing Models through CP-Violating Effects
• Explaining $b\to s{\ell }^{+}{\ell }^{-}$ and the Cabibbo Angle Anomaly with a Vector Triplet
• $Z^{\prime }$ models with less-minimal flavour violation
• Constraining Flavor Changing Interactions from LHC Run-2 Dilepton Bounds with Vector Mediators
• Global Analysis of Leptophilic Z' Bosons
• Combined Explanation of the $Z\to b\bar{b}$ Forward-Backward Asymmetry, the Cabibbo Angle Anomaly, $\tau \to \mu \nu \nu$ and $b\to s{\ell }^{+}{\ell }^{-}$ Data
• $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ Decay in the Aligned Two-Higgs-Doublet Model
• Dirac dark matter and $b\to s{\ell }^{+}{\ell }^{-}$ with $\mathrm{U}(1)$ gauge symmetry
• More Lepton Flavor Violating Observables for LHCb's Run 2
• Anomalous $Z^{\prime }$ bosons for anomalous $B$ decays
• Unified Explanation of the Anomalies in Semi-Leptonic $B$ decays and the $W$ Mass
• Towards excluding a light $Z^{\prime }$ explanation of $b\to s{\ell }^{+}{\ell }^{-}$
• Phenomenology of the simple 3-3-1 model with inert scalars
• From Type II string theory towards BSM/dark sector physics
• Muon $g-2$ discrepancy within D-brane string compactifications
• Muon $g-2$ and semileptonic $B$ decays in Bélanger-Delaunay-Westhoff model with gauge kinetic mixing
• The 750 GeV LHC diphoton excess from a baryon number conserving string model
• A flavor-safe composite explanation of $R_K$