New physics in $b\to s{e}^{+}{e}^{-}$: A model independent analysis

Abstract

The lepton universality violating flavor ratios $R_K/R_{K^{\ast }}$ indicate new physics either in $b\to s{\mu }^{+}{\mu }^{-}$ or in $b\to s{e}^{+}{e}^{-}$ or in both. If the new physics is only $b\to s{e}^{+}{e}^{-}$ transition, the corresponding new physics operators, in principle, can have any Lorentz structure. In this work, we perform a model independent analysis of new physics only in $b\to s{e}^{+}{e}^{-}$ decay by considering effective operators either one at a time or two similar operators at a time. We include all the measurements in $b\to s{e}^{+}{e}^{-}$ sector along with $R_K/R_{K^{\ast }}$ in our analysis. We show that various new physics scenarios with vector/axial-vector operators can account for $R_K/R_{K^{\ast }}$ data but those with scalar/pseudoscalar operators and with tensor operators can not. We also show that the azimuthal angular observable $P_1$ in $B\to K^{\ast }{e}^{+}{e}^{-}$ decay is most suited to discriminate between the different allowed solutions.

arXiv commentAccepted to publish in Nucl. Phys. B

References in corpus (42)

• Test of lepton universality using $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Test of lepton universality with $B^0\to K^{\ast 0}{\ell }^{+}{\ell }^{-}$ decays
• Physics of leptoquarks in precision experiments and at particle colliders
• Symmetries and Asymmetries of B -> K* mu+ mu- Decays in the Standard Model and Beyond
• Measurement of form-factor independent observables in the decay $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$
• Angular analysis of the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay using $3\,\mbox{fb}^{-1}$ of integrated luminosity
• More Model-Independent Analysis of b->s Processes
• On the Standard Model predictions for $R_K$ and $R_{K^{\ast }}$
• Charm-loop effect in $B\to K^{(\ast )}{\ell }^{+}{\ell }^{-}$ and $B\to K^{\ast }\gamma$
• 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 $L_{\mu }-L_{\tau }$
• Search for lepton-universality violation in $B^{+}\to K^{+}{\ell }^{+}{\ell }^{-}$ decays
• Dressing L_mu - L_tau in Color
• Flavour anomalies after the $R_{K^{\ast }}$ measurement
• Angular analysis and differential branching fraction of the decay $B_s^0\to \varphi {\mu }^{+}{\mu }^{-}$
• $R_K$ and future $b\to s\ell \ell$ BSM opportunities
• Measurement of $CP$-averaged observables in the $B^0\to K^{\ast 0}{\mu }^{+}{\mu }^{-}$ decay
• B-decay discrepancies after Moriond 2019
• Emerging patterns of New Physics with and without Lepton Flavour Universal contributions
• Gauged L_mu - L_tau Symmetry at the Electroweak Scale
• $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays at large recoil in the Standard Model: a theoretical reappraisal
• On the anomalies in the latest LHCb data
• Test of lepton-flavor universality in $B\to K^{\ast }{\ell }^{+}{\ell }^{-}$ decays at Belle
• New Physics in $b\to s{\ell }^{+}{\ell }^{-}$ confronts new data on Lepton Universality
• Violation of lepton flavour universality in composite Higgs models
• Predictions for Lepton Flavor Universality Violation in Rare B Decays in Models with Gauged $L_{\mu }-L_{\tau }$
• Lepton Flavor Non-Universality in B decays from Dynamical Yukawas
• The $B$ Anomalies and New Physics in $b\to s{e}^{+}{e}^{-}$
• Update on the b->s anomalies
• Standard Model predictions for B -> Kll with form factors from lattice QCD
• Generalised helicity formalism, higher moments and the $B\to K_{J_K}(\to K\pi ){\bar{\ell }}_1{\ell }_2$ angular distributions
• Measurement of the B->Xsl+l- branching fraction and search for direct CP violation from a sum of exclusive final states
• Role of Tensor operators in $R_K$ and $R_{K^{\ast }}$
• New light mediators for the $R_K$ and $R_{K^{\ast }}$ puzzles
• Implications for New Physics in $b\to s\mu \mu$ transitions after recent measurements by Belle and LHCb
• Angular analysis of the $B^0\to K^{\ast 0}{e}^{+}{e}^{-}$ decay in the low-$q^2$ region
• Large hadronic power corrections or new physics in the rare decay B-->K* mu+ mu- ?
• flavio: a Python package for flavour and precision phenomenology in the Standard Model and beyond
• Search for the rare decays $B_s^0\to e^{+}{e}^{-}$ and $B^0\to e^{+}{e}^{-}$
• New physics in $b\to s{e}^{+}{e}^{-}$?
• New physics effects in purely leptonic $B_s^{\ast }$ decays
• Probing new physics through $B_s^{\ast }\to {\mu }^{+}{\mu }^{-}$ decay
• New Physics in $b\to s\ell \ell$ anomalies and its implications for the complementary neutral current decays

Cited by in corpus (2)

• A unique discrimination between new physics scenarios in $b\to s{\mu }^{+}{\mu }^{-}$ anomalies
• Discriminating 1D new physics solutions in $b\to s\ell \ell$ decays