B-decay Anomalies in a Composite Leptoquark Model

TL;DR

This paper explores a composite leptoquark model to explain anomalies in B-meson decays, proposing a partial UV completion that incorporates a vector leptoquark within a composite Higgs framework.

Contribution

It introduces a generalized composite Higgs model including a vector leptoquark to address B-decay anomalies, providing a partial UV completion of the flavor symmetry explanation.

Findings

Proposes a composite leptoquark model consistent with B-decay anomalies.

Integrates a vector leptoquark into a composite Higgs framework.

Offers a partial UV completion for flavor symmetry interpretations.

Abstract

The collection of a few anomalies in semileptonic $B$-decays, especially in $b\rightarrow c \tau \bar{\nu}$, invites to speculate about the emergence of some striking new phenomena, perhaps interpretable in terms of a weakly broken $U(2)^n$ flavor symmetry and of leptoquark mediators. Here we aim at a partial UV completion of this interpretation by generalizing the minimal composite Higgs model to include a composite vector leptoquark as well.