# B decay anomalies and dark matter from vectorlike confinement

@article{Cline2017BDA,
title={B decay anomalies and dark matter from vectorlike confinement},
author={James M. Cline},
journal={Physical Review D},
year={2017},
volume={97},
pages={015013}
}
• J. Cline
• Published 5 October 2017
• Physics
• Physical Review D
Lepton flavor universality violating $B\to K\ell\ell$ and $K^*\ell\ell$ decays tentatively observed by LHCb can be explained by leptoquark exchange. We explore a simple model for the $B$ anomalies with a composite leptoquark from new strong dynamics at the TeV scale, a confining SU($N_{\rm HC}$) hypercolor interaction. The new matter fields, fundamentals under SU($N_{\rm HC}$), are heavy vectorlike fermions $\Psi,\, S,$ and an inert scalar doublet $\phi$. $\Psi$ is colored under QCD while $S… 65 Citations ## Figures and Tables from this paper In recent years, significant experimental indications that point towards Lepton Flavour Universality violating effects in B-decays, involving$b \to c \tau \nu$and$b \to s \ell^+ \ell^-$have been Indications of lepton flavor universality violation in semileptonic$B$decays to$K$or$K^*$and muons or electrons can be explained by leptoquark exchange. I present a model in which the • Physics The European Physical Journal C • 2019 We study an extension of the Standard Model that addresses the hints of lepton flavour universality violation observed in $$B\rightarrow K^{(*)} l^+l^-$$B→K(∗)l+l- decays at LHCb, while providing a • Physics • 2020 We explore a class of models which can provide a common origin for the recently observed evidence for lepton flavor universality violation in$b \to s l^+ l^- $decays, the dark matter (DM) problem • Physics Journal of High Energy Physics • 2018 A bstractWe propose a new physics model which has a cold dark matter candidate and can explain the b → sμ+μ− anomaly at the same time. Our model includes a scalar quark q˜$$\tilde{q}$$ and a scalar • Physics The European Physical Journal C • 2018 We scrutinize the recently further strengthened hints for new physics in semileptonic B-meson decays, focusing on the ‘clean’ ratios of branching fractions $$R_K$$RK and $$R_{K^*}$$RK∗ and examining • Physics The European Physical Journal C • 2019 In light of the very recent updates on the$R_K$and$R_{K^*}$measurements from the LHCb and Belle collaborations, we systematically explore here imprints of New Physics in$b \to s \ell^+ \ell^- $• Physics Physical Review D • 2018 Leptoquarks provide some of the simplest explanations to the hints of lepton flavor non-universality in$B$decays. In particular, a new confining gauge group can provide a natural and appealing • Physics Physical Review D • 2019 In this article, we have considered an extension of the inert Higgs doublet model with$SU(2)_L$singlet vector like fermions. Our model is capable of addressing some interesting anomalous results in • Physics • 2021 The measured branching fractions of B-mesons into leptonic final states derived by the LHCb, Belle and BaBar collaborations hint towards the breakdown of lepton flavour universality. In this work we ## References SHOWING 1-10 OF 135 REFERENCES • Physics • 2017 There are presently several discrepancies in$b \to s \ell^+ \ell^-$decays of$B$mesons suggesting new physics coupling to$b$quarks and leptons. We show that a$Z'$, with couplings to quarks and There are indications of a possible breakdown of the standard model, suggesting that$\tau$lepton interactions violate flavor universality. BABAR, Belle and LHCb report high ratios of$B\to
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A bstractWe reconsider a model introducing a scalar leptoquark ϕ ∼ (3,1, −1/3) to explain recent deviations from the standard model in semileptonic B decays. The leptoquark can accommodate the
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The LHCb has measured the ratios of $B\to K^\ast\mu^+\mu^-$ to $B\to K^\ast e^+ e^-$ branching fractions in two dilepton invariant mass squared bins, which deviate from the Standard Model predictions
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We study the effect of scalar leptoquarks in the lepton flavor violating $B$ meson decays induced by the flavor-changing transitions $b\ensuremath{\rightarrow}q{l}_{i}^{+}{l}_{j}^{\ensuremath{-}}$
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Recently, the LHCb collaboration has reported the excesses in the $b \to s ll$ processes. One of the promising candidates for new physics to explain the anomalies is the extended Standard Model (SM)
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Author(s): Geng, Li-Sheng; Grinstein, Benjamin; Jaeger, Sebastian; Camalich, Jorge Martin; Ren, Xiu-Lei; Shi, Rui-Xiang | Abstract: Tests of lepton-universality as rate ratios in $b\to s \ell\ell$