ALPS II technical overview and status report

TL;DR

ALPS II is an advanced experiment employing resonant optical cavities to enhance sensitivity in detecting weakly interacting particles passing through walls, aiming to improve upon traditional light shining through wall methods.

Contribution

This paper provides a comprehensive technical overview and current status update of the ALPS II experiment, highlighting its innovative resonant enhancement approach.

Findings

Implementation of dual resonant cavities increases detection probability.

ALPS II improves sensitivity over previous light shining through wall experiments.

Current status indicates readiness for experimental runs.

Abstract

The Any Light Particle Search II (ALPS II) is an experiment that utilizes the concept of resonant enhancement to improve on the sensitivity of traditional light shining through a wall style experiments. These experiments attempt to detect photons passing through an opaque wall by converting to relativistic weakly interacting sub-eV particles and then reconverting back to photons. ALPS II at DESY in Hamburg, Germany will use dually resonant optical cavities before and after the wall to increase the probability of this interaction occurring. This paper gives a technical overview and status report of the experiment.