Scalar leptoquarks from GUT to accommodate the $B$-physics anomalies

TL;DR

This paper proposes a two scalar leptoquark model derived from GUT principles to explain B-physics anomalies, consistent with current data, and explores future detection prospects at the LHC.

Contribution

It introduces a UV-complete two scalar leptoquark model from SU(5) operators that explains B-physics anomalies and aligns with flavor and collider constraints.

Findings

Model accommodates all measured lepton flavor universality ratios.

Consistent with flavor observables and LHC searches.

Predicts new flavor observables and future LHC discoveries.

Abstract

We address the $B$-physics anomalies within a two scalar leptoquark model. The low-energy flavor structure of our set-up originates from two $SU(5)$ operators that relate Yukawa couplings of the two leptoquarks. The proposed scenario has a UV completion, can accommodate all measured lepton flavor universality ratios in $B$-meson decays, is consistent with related flavor observables, and is compatible with direct searches at the LHC. We provide prospects for future discoveries of the two light leptoquarks at the LHC and predict several yet-to-be-measured flavor observables.