Exploring B-physics anomalies at colliders

TL;DR

This paper analyzes B-meson decay anomalies indicating Lepton Flavour Universality violation, using global fits to Wilson coefficients, and finds scenarios with three non-universal coefficients best explain current and projected collider data.

Contribution

It introduces a model-independent effective Hamiltonian approach with various New Physics scenarios to interpret B-physics anomalies at colliders.

Findings

Scenarios with three non-universal Wilson coefficients are favored.

Current LHC and future ILC data support these scenarios.

Analysis helps identify potential New Physics contributions to B-decay anomalies.

Abstract

Several experimental measurements of $B$ meson decays, in tension with Standard Model predictions, exhibit large sources of Lepton Flavour Universality violation. We perform an analysis of the effects of the global fits to the Wilson coefficients assuming a model independent effective Hamiltonian approach, by including a proposal of different scenarios to include the New Physics contributions. Both the current fits at the LHC and the ILC projections are considered. We found that for a simultaneous analysis of predictions for the $R_{D^{(*)}}$ and $R_{K^{(*)}}$ observables, the scenarios with three non-universal Wilson coefficients are favoured.