Exploiting dijet resonance searches for flavor physics

TL;DR

This paper reinterprets collider dijet resonance searches to constrain new physics mediators and examines their implications for flavor physics anomalies, revealing tensions between collider and flavor data.

Contribution

It provides a comprehensive reinterpretation of dijet searches for generic mediators and connects these constraints to flavor physics anomalies, including a SMEFT analysis of B decays.

Findings

Dijet searches set strong bounds on scalar and vector mediators up to 5 TeV.

Constraints from high-$p_T$ collider data challenge explanations of flavor anomalies.

A SMEFT analysis links collider constraints to non-leptonic B decay observables.

Abstract

In this work, we reinterpret ATLAS and CMS dijet resonance searches to set robust constraints on all hypothetical tree-level scalar and vector mediators with masses up to 5 TeV, assuming a diquark or a quark-antiquark coupling with an arbitrary flavor composition. To illustrate the application of these general results, we quantify the permissible size of new physics in $\bar B_q\to D_q^{(*)+} \,\{\pi, K\}$ consistent with the absence of signal in dijet resonance searches. Along the way, we perform a full SMEFT analysis of the aforementioned non-leptonic $B$ meson decays at leading-order in $\alpha_s$. Our findings uncover a pressing tension between the new physics explanations of recently reported anomalies in these decays and the dijet resonant searches. The high-$p_T$ constraints are crucial to drain the parameter space consistent with the low-$p_T$ flavor physics data.