The ATLAS Di-boson Excess Could Be an R-parity Violating Di-smuon Excess

TL;DR

This paper suggests that the ATLAS di-boson excess might be explained by R-parity violating supersymmetry involving heavy sleptons decaying into di-smuons, which could also account for the muon g-2 anomaly.

Contribution

It introduces a novel supersymmetric explanation for the ATLAS di-boson excess involving R-parity violating interactions and light smuons, which is not yet excluded by existing constraints.

Findings

Proposes heavy slepton production as the source of the excess.

Explains how di-smuons can mimic W/Z bosons in detectors.

Links the scenario to the muon g-2 discrepancy.

Abstract

We propose a new possible explanation of the ATLAS di-boson excess: that it is due to heavy resonant slepton production, followed by decay into di-smuons. The smuon has a mass not too far from the W and Z masses, and so it is easily confused with W or Z bosons after its subsequent decay into di-jets, through a supersymmetry violating and R-parity violating interaction. Such a scenario is not currently excluded by other constraints and remains to be definitively tested in Run II of the LHC. Such light smuons can easily simultaneously explain the discrepancy between the measurement of the anomalous magnetic moment of the muon and the Standard Model prediction.