The Any Light Particle Search experiment at DESY

Abstract

The Any Light Particle Search (ALPS~II) is a light shining through a wall (LSW) experiment searching for axion-like elementary particles in the sub-eV mass range, which are motivated by astrophysics and cosmology and fulfill the requirements for being dark matter. ALPS~II aims to measure an axion-to-photon coupling of $2\times 10^{-11}\mathrm{Ge}{\mathrm{V}}^{-1}$, which is several orders of magnitude better than that of previous LSW experiments and will thus investigate a new parameter range. The increased performance is achieved by enhancing the magnetic field interaction length to 2 $\times$ 106\,m and by amplifying the signal in an optical cavity on each side of a light-tight barrier. The expected signal is in the order of 1 photon per day, which will be measured by photon detectors with very low dark count rates of $\mathcal{O}(10^{-6}\mathrm{Hz})$. This article gives a technical overview on the experiment design, previous and ongoing investigations and the current status with focus on the single photon detection.

References in corpus (18)

• Deep learning for time series classification: a review
• New CAST Limit on the Axion-Photon Interaction
• Extended Search for the Invisible Axion with the Axion Dark Matter Experiment
• New ALPS Results on Hidden-Sector Lightweights
• Any Light Particle Search II -- Technical Design Report
• Conceptual Design of the International Axion Observatory (IAXO)
• Strong CP problem and mirror world: the Weinberg Wilczek axion revisited
• Cool WISPs for stellar cooling excesses
• First lower limits on the photon-axion-like particle coupling from very high energy gamma-ray observation
• Light shining through walls
• A new experimental approach to probe QCD axion dark matter in the mass range above 40$\mu$eV
• An even lighter QCD axion
• Tomography of photon-number resolving continuous-output detectors
• Optimizing Light-Shining-through-a-Wall Experiments for Axion and other WISP Searches
• Photophilic hadronic axion from heavy magnetic monopoles
• Characterization, 1064 nm photon signals and background events of a tungsten TES detector for the ALPS experiment
• Coherent Detection of Ultra-weak Electromagnetic Fields
• Characterization of optical systems for the ALPS II experiment

Cited by in corpus (6)

• Constraints on axion-like particles with the Perseus Galaxy Cluster with MAGIC
• A Transition Edge Sensor Operated in Coincidence with a High Sensitivity Athermal Phonon Sensor for Photon Coupled Rare Event Searches
• A first application of machine and deep learning for background rejection in the ALPS II TES detector
• Shining massive light through a wall
• Searching for Axion-Like Particles with X-ray Observations of Alpha Centauri
• Binary Classification of Light and Dark Time Traces of a Transition Edge Sensor Using Convolutional Neural Networks