Signals of single particle production at the earliest LHC

TL;DR

This paper explores how single particle production signals at the LHC could indicate new physics, focusing on simple models and early detection prospects with specific final states like gamma-gamma and gamma+jet.

Contribution

It introduces a phenomenological framework to identify early signals of new physics through single particle production at the LHC.

Findings

Effective final states include gamma gamma and gamma + jet.

Signals could be observable with tens of inverse picobarns at 7 TeV.

Provides conditions under which single particle signals are detectable.

Abstract

Based on simple phenomenological Lagrangians, fulfilling reasonable consistency conditions, we consider under which circumstances the production of a single particle might be an early signal of new physics at the LHC. Effective final states are $\gamma \gamma $ and $\gamma +jet$ already with tens of inverse picobarns of integrated luminosity at 7 TeV.