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We fabricate a miniature spherical mirror for tightly focusing an optical dipole trap for neutral atoms. The mirror formation process is modelled to predict the dimensions for particular fabrication parameters. We integrate the spherical…

Atomic Physics · Physics 2015-06-05 Arpan Roy , Andrew Bah Shen Jing , Murray D. Barrett

We use an optical cavity to detect single atoms magnetically trapped on an atom chip. We implement the detection using both fluorescence into the cavity and reduction in cavity transmission due to the presence of atoms. In fluorescence, we…

Other Condensed Matter · Physics 2009-11-11 Igor Teper , Yu-Ju Lin , Vladan Vuletic

In gamma ray astronomy with Cherenkov telescopes, machine learning models are needed to guess what kind of particles generated the detected light, and their energies and directions. The focus in this work is on the classification task,…

Instrumentation and Methods for Astrophysics · Physics 2024-01-11 Francesco Visconti

The results obtained in laboratory tests, using scintillator bars read by silicon photomultipliers are reported. The present approach is the first step for designing a precision tracking system to be placed inside a free magnetized volume…

Instrumentation and Detectors · Physics 2017-01-04 S. Cecchini , I. D'Antone , L. Degli Esposti , I. Lax , G. Mandrioli , N. Mauri , L. Pasqualini , L. Patrizii , M. Pozzato , G. Sirri , M. Tenti

Radiation of charged particles moving in the presence of dielectric targets is of significant interest for various applications in the accelerator and beam physics. The size of these targets is typically much larger than the wavelengths…

Accelerator Physics · Physics 2020-06-24 Andrey V. Tyukhtin , Ekaterina S. Belonogaya , Sergey N. Galyamin , Victor V. Vorobev

This paper presents the results of charged particle track reconstruction in CLAS12 using artificial intelligence. In our approach, we use machine learning algorithms to reconstruct tracks, including their momentum and direction, with high…

Instrumentation and Detectors · Physics 2024-04-24 Gagik Gavalian

The PICOSEC detection concept consists in a "two-stage" Micromegas detector coupled to a Cherenkov radiator and equipped with a photocathode. A proof of concept has already been tested: a single-photoelectron response of 76 ps has been…

In high-energy particle collisions, charged track finding is a complex yet crucial endeavour. We propose a quantum algorithm, specifically quantum template matching, to enhance the accuracy and efficiency of track finding. Abstracting the…

High Energy Physics - Phenomenology · Physics 2025-09-03 Christopher Brown , Michael Spannowsky , Alexander Tapper , Simon Williams , Ioannis Xiotidis

Measuring signatures of strong-field quantum electrodynamics (SF-QED) processes in an intense laser field is an experimental challenge: it requires detectors to be highly sensitive to single electrons and positrons in the presence of the…

Imaging Cherenkov detectors are largely used in modern nuclear and particle physics experiments where cutting-edge solutions are needed to face always more growing computing demands. This is a fertile ground for AI-based approaches and at…

Instrumentation and Detectors · Physics 2020-06-11 Cristiano Fanelli

TORCH is a time-of-flight detector designed to perform particle identification over the momentum range 2$-$10 GeV/c for a 10 m flight path. The detector exploits prompt Cherenkov light produced by charged particles traversing a quartz plate…

The sensitivity of ground-based imaging atmospheric Cherenkov gamma-ray observatories depends critically on the primary particle identification methods which are used to retain photon-initiated events and suppress the spurious background…

Astrophysics · Physics 2014-10-13 V. V. Bugaev , A. V. Plyasheshnikov , V. V. Vassiliev , T. C. Weekes

By extracting the beam with a bent crystal or by using an internal gas target, the multi-TeV proton and lead LHC beams allow one to perform the most energetic fixed-target experiments ever and to study $pp$, $p$d and $p$A collisions at…

During the High Luminosity LHC, the CMS detector will need charged particle tracking at the hardware trigger level to maintain a manageable trigger rate and achieve its physics goals. The tracklet approach is a track-finding algorithm based…

The opportunities which are offered by a next generation and multi-purpose fixed-target experiment exploiting the proton and lead LHC beams extracted by a bent crystal are outlined. In particular, such an experiment can greatly complement…

AMS-02 is a detector currently in operation onboard the International Space Station (ISS). One of the main scientific goals of the spectrometer is the measurement of charged particle fluxes. The detector design makes possible the…

Instrumentation and Detectors · Physics 2025-04-28 Georgi Vasilev , Galina Vankova-Kirilova , Galina Bozhkova

A new technique is developed to identify dielectrons (e$^+$e$^-$) with Lorentz boost $\gamma_\mathrm{L}$ $\gt$ 20 that produce one single merged cluster in the electromagnetic calorimeter of the CMS detector. The identification uses two…

High Energy Physics - Experiment · Physics 2026-04-16 CMS Collaboration

We demonstrate that photonic crystals can be used to generate powerful and highly coherent laser radiation when injecting a beam of free electrons. Using theoretical investigations we present the startup dynamics and coherence properties of…

Cherenkov detectors have been used in space missions for many decades, and for a variety of purposes, including for example, for Galactic Cosmic Ray (GCR) and Solar Energetic Particle (SEP) measurements. Cherenkov detectors are sensitive to…

Instrumentation and Detectors · Physics 2026-03-20 Christopher S. W. Davis , Fan Lei , Keith Ryden , Clive Dyer , Giovanni Santin , Piers Jiggens , Melanie Heil

The DIRC (Detection of Internally Reflected Cerenkov light) is a new type of ring imaging Cerenkov detector, which detects images from Cerenkov light produced in precisely machined quartz bars. The Cerenkov images are transported along…

High Energy Physics - Experiment · Physics 2007-05-23 C. Lu , D. Marlow , C. Mindas , E. Prebys