When Energy Goes Missing: New Physics in $b\to s\nu \nu$ with Sterile Neutrinos

Abstract

Belle II recently reported the first measurement of $B^{+}\to K^{+}+\mathrm{inv}$, which is $2.8\sigma$ above the Standard Model prediction. We explore the available parameter space of new physics within Standard Model effective field theory extended by sterile neutrinos ($\nu$SMEFT) and provide predictions for the other $B\to K^{(\star )}+\mathrm{inv}$ decay modes and invisible $B_s$ decays. We also briefly comment on charged current decays $B\to D^{(\star )}\ell \bar{\nu }$ and possible ultraviolet completions of the relevant $\nu$SMEFT operators.

arXiv comment19 pages, 5 figures, added comments on other b->s nu nu processes, matches published version

References in corpus (57)

• The $\nu$MSM, Dark Matter and Baryon Asymmetry of the Universe
• Physics of leptoquarks in precision experiments and at particle colliders
• $B\to V{\ell }^{+}{\ell }^{-}$ in the Standard Model from Light-Cone Sum Rules
• Low-Energy Effective Field Theory below the Electroweak Scale: Operators and Matching
• Effective description of general extensions of the Standard Model: the complete tree-level dictionary
• Two-Loop Electroweak Corrections for the K -> pi nu anti-nu Decays
• $B\to P$ and $B\to V$ Form Factors from $B$-Meson Light-Cone Sum Rules beyond Leading Twist
• Search for B --> K(*) nu nubar and invisible quarkonium decays
• Operators up to Dimension Seven in Standard Model Effective Field Theory Extended with Sterile Neutrinos
• Search for $\mathbf{B}\to \mathbf{h\nu }\bar{\mathbf{\nu }}$ decays with semileptonic tagging at Belle
• Search for Neutral Heavy Leptons in a High-Energy Neutrino Beam
• New strategies for New Physics search in B -> K* nu anti-nu, B -> K nu anti-nu and B -> X(s) nu anti-nu decays
• B physics Beyond the Standard Model at One Loop: Complete Renormalization Group Evolution below the Electroweak Scale
• Search for Dark Matter in b -> s Transitions with Missing Energy
• The Mono-Tau Menace: From $B$ Decays to High-$p_T$ Tails
• Measurement of the decay $B\to D\ell {\nu }_{\ell }$ in fully reconstructed events and determination of the Cabibbo-Kobayashi-Maskawa matrix element $|V_{cb}|$
• Pati-Salam explanations of the B-meson anomalies
• Search for B -> h(*) nu nubar with the full Belle Y(4S) data sample
• Status of the semileptonic $B$ decays and muon g-2 in general 2HDMs with right-handed neutrinos
• Combined explanations of B-physics anomalies: the sterile neutrino solution
• Improved BBN constraints on Heavy Neutral Leptons
• Generalised helicity formalism, higher moments and the $B\to K_{J_K}(\to K\pi ){\bar{\ell }}_1{\ell }_2$ angular distributions
• Revisiting $B\to K^{(\ast )}\nu \bar{\nu }$ decays in the Standard Model and beyond
• New Physics in the Visible Final States of $B\to D^{(\ast )}\tau \nu$
• Probing dark sectors with long-lived particles at BELLE II
• Long-lived Sterile Neutrinos at the LHC in Effective Field Theory
• Rare B \to K^{(*)} ν\barνDecays at B Factories
• Search for $B^{+}\to K^{+}\nu \bar{\nu }$ decays using an inclusive tagging method at Belle II
• B-meson charged current anomalies: the post-Moriond status
• Interplay of dineutrino modes with semileptonic rare $\mathbf{B}$-decays
• The role of right-handed neutrinos in $b\to c\tau \bar{\nu }$ anomalies
• Light-Cone Sum Rules for $B\to K\pi$ Form Factors and Applications to Rare Decays
• General neutrino interactions with sterile neutrinos in light of coherent neutrino-nucleus scattering and meson invisible decays
• Right-handed Neutrinos and $R(D^{(\ast )})$
• Tree-level contributions to the rare decays B+ --> pi+ nu anti-nu, B+ --> K+ nu anti-nu, and B+ --> K*+ nu anti-nu in the Standard Model
• A Theory of $R(D^{\ast },D)$ Anomaly With Right-Handed Currents
• Asymmetry Observables and the Origin of $R_{D^{(\ast )}}$ Anomalies
• Charged current $b\to c\tau {\bar{\nu }}_{\tau }$ anomalies in a general $W^{\prime }$ boson scenario
• An allowed window for heavy neutral leptons below the kaon mass
• Impact of $B\to K\nu \bar{\nu }$ measurements on beyond the Standard Model theories
• Unified SU(4) theory for the $R_{D^{(\ast )}}$ and $R_{K^{(\ast )}}$ anomalies
• Displaced or invisible? ALPs from $B$ decays at Belle II
• FCNC $B$ and $K$ Meson Decays with Light Bosonic Dark Matter
• Long-lived Sterile Neutrinos at Belle II in Effective Field Theory
• Right-handed currents in rare exclusive B -> (K, K*) nu bar{nu} decays
• $R_{K^{(\ast )}}^{\nu }$ and non-standard neutrino interactions
• New Physics Effects in $B\to K^{(}\ast )\nu \nu$ Decays
• Long-lived heavy neutral leptons from mesons in effective field theory
• Implication of $K\to \pi \nu \bar{\nu }$ for generic neutrino interactions in effective field theories
• A test of light-lepton universality in the rates of inclusive semileptonic $B$-meson decays at Belle II
• Rare B -> K^* (nu) bar(nu) decay beyond standard model
• Consequences of $b\to s{\mu }^{+}{\mu }^{-}$ anomalies on $B\to K^{(\ast )}\nu \bar{\nu }$, $B_s\to (\eta ,{\eta }^{\prime })\nu \bar{\nu }$ and $B_s\to \varphi \nu \bar{\nu }$ decay observables
• $\bar{B}\to D^{(\ast )}\ell \bar{X}$ decays in effective field theory with massive right-handed neutrinos
• Lepton flavour violation in rare ${\Lambda }_b$ decays
• Implications for the $\Delta A_{FB}$ anomaly in ${\bar{B}}^0\to D^{\ast +}{\ell }^{-}\bar{\nu }$ using a new Monte Carlo Event Generator
• New physics effects on ${\Lambda }_b\to {\Lambda }_c^{\ast }\tau {\bar{\nu }}_{\tau }$ decays
• Right-handed Dirac and Majorana neutrinos at Belle II

Cited by in corpus (18)

• Decoding the $B\to K\nu \nu$ excess at Belle II: kinematics, operators, and masses
• Disentangling new physics in $K\to \pi \bar{\nu }\nu$ and $B\to K(K^{\ast })\bar{\nu }\nu$ observables
• $B\to K\nu \bar{\nu }$, MiniBooNE and muon $g-2$ anomalies from a dark sector
• Prospects for searches of $b\to s\nu \bar{\nu }$ decays at FCC-ee
• Correlating $B\to K^{(\ast )}\nu \bar{\nu }$ and flavor anomalies in SMEFT
• Disentangling left and right-handed neutrino effects in $B\to K^{(\ast )}\nu \nu$
• The decay $B\to K+\nu +\bar{\nu }$ at Belle II and a massless bino in R-parity-violating supersymmetry
• Impact of new invisible particles on $B\to K^{(\ast )}{E}_{\mathrm{miss}}$ observables
• Searching for signatures of new physics in $B\to K\nu \overline{\nu }$ to distinguish between Dirac and Majorana neutrinos
• $B\to K+$invisible, dark matter, and $CP$ violation in hyperon decays
• Right-handed interactions in puzzling $B$-decays
• Analysis of $q_{\mathrm{rec}}^2$-distribution for $B\to K{M}_X$ and $B\to K^{\ast }{M}_X$ decays in a scalar-mediator dark-matter scenario
• Light dark-matter window constrained by \boldmath$K^{+}\to {\pi }^{+}$$+$$/E$
• Multi-Component Dark Matter from Minimal Flavor Violation
• Scrutinizing dark-matter scenarios with $B\to (K,K^{\ast })\bar{\nu }\nu$ decays
• Probing vector- vs scalar-mediator dark-matter scenarios in $B\to (K,K^{\ast })M_X$ decays
• Belle II Constraints on the Non-Minimal Universal Extra Dimensional Model
• Dark Matter emission at Belle II and NA62 in Minimal Flavor Violation framework