Strong, weak and flavor scalar triplets for the CDF Wjj anomaly

TL;DR

This paper proposes a new scalar particle model to explain the Wjj anomaly observed by CDF, exploring its implications for LHC searches and flavor physics constraints.

Contribution

It introduces scalar triplets charged under SU(3)_C and SU(2)_L, maintaining flavor symmetry to address the Wjj anomaly and analyzing LHC detection prospects.

Findings

Scalar triplet model can explain the Wjj anomaly

LHC can potentially detect these scalars in specific channels

Flavor symmetry constraints are satisfied by multiple scalar replicas

Abstract

A model describing the 4.1\sigma\ Wjj anomaly observed by the CDF experiment at the Tevatron collider is introduced. It features new scalar particles which are charged both under the SU(3)_C and the SU(2)_L gauge groups and which couple to pairs of quarks. We introduce several identical replicas of the scalar multiplets in order to leave an unbroken U(3)_Q x U(3)_U x U(3)_D flavor symmetry to satisfy the constraints coming from flavor physics. We discuss the LHC reach on the new scalar resonances both in the resonant production channel (with the Wjj final state) and in the QCD pair production channel (with the 4j final state).