What the Tevatron Found?

TL;DR

This paper investigates the CDF excess at 147 GeV in dijet invariant mass, analyzing the potential for Tevatron and LHC detectors to observe related signals and distinguish between Standard Model and new physics explanations.

Contribution

It assesses the observability of the CDF excess at Tevatron and LHC and explores methods to differentiate between Standard Model and new physics interpretations.

Findings

Tevatron and LHC can potentially observe signals related to the excess.

Kinematic distributions can help distinguish between SM and new physics explanations.

The discrepancy between CDF and DØ remains unresolved, highlighting the need for further data.

Abstract

The CDF collaboration has reported a 4.1\sigma\ excess in their lepton, missing energy, and dijets channel. This excess, which takes the form of an approximately Gaussian peak centered at a dijet invariant mass of 147 GeV, has provoked a great deal of experimental and theoretical interest. Although the D\O\ collaboration has reported that they do not observe a signal consistent with CDF, there is currently no widely accepted explanation for the discrepancy between these two experiments. A resolution of this issue is of great importance---not least because it may teach us lessons relevant for future searches at the LHC---and it will clearly require additional information. In this paper, we consider the ability of the Tevatron and LHC detectors to observe evidence associated with the CDF excess in a variety of channels. We also discuss the ability of selected kinematic distributions to distinguish between Standard Model explanations of the observed excess and various new physics scenarios.