• DOI:10.1103/PhysRevD.97.015013
• Corpus ID: 56378746

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 $S$ is neutral, and the hyperbaryon $S^N$ is a dark matter candidate. The model is tightly constrained by meson-antimeson oscillations, lepton flavor violation, and LHC searches for resonant production of the exotic bound states. The dark matter may be detectable through its magnetic dipole moment. If $m_S$ is sufficiently small, composite leptoquarks and heavy lepton partners can be pair-produced at an observable level at LHC.