Conveners
Instrumentation: Accelerators and Instrumentation
- dorival Gonçalves (Oklahoma State University)
Instrumentation: Neutrinos, Dark Matter, and Scintillation
- Andreas Werner Jung (Purdue University (US))
Instrumentation: ATLAS and CMS
- Zhi Zheng (SLAC National Accelerator Laboratory (US))
In this study, we present the development of a portable cosmic muon tracker tailored for both on-site measurements of cosmic muon flux and outreach activities. The tracker comprises two 7cm x 7cm plastic scintillators, wavelength shifting (WLS) fibers, and Hamamatsu SiPMs (S13360-2050VE). The detector utilizes plastic scintillator panels optically coupled to WLS fibers, transmitting...
The Mu2e experiment at Fermilab will conduct a world-leading search for Charged Lepton Flavour Violation (CLFV) in neutrino-less muon-to-electron conversion in the field of a nucleus. In doing so, it will provide a powerful probe into physics beyond the Standard Model, which can greatly enhance the rates of CLFV processes. To accomplish this measurement, which will constitute an...
LYSO crystals are radiation-hard, non-hygroscopic, have a light yield of $\sim30,000\,\gamma$/MeV, a 40-ns decay time, and a radiation length of just 1.14 cm. Conventional photosensors work naturally at the LYSO peak wavelength of 420 nm. These properties suggest that an electromagnetic calorimeter made from LYSO should be ideal for high-rate, low-energy precision experiments where high...
We present a calculation of QED radiative corrections to low energy electron proton scattering at next-to-leading order. This work is based on that performed previously by Maximon and Tjon which relied on the soft photon approximation for the two-photon exchange diagram. The calculations are performed assuming the finite size of the proton through electromagnetic dipole form factors and...
Electron-positron pair production and hadron photoproduction are the most important beam-induced backgrounds at linear electron-positron colliders. Predicting them accurately governs the design and
optimization of detectors at these machines, and ultimately their physics reach. With the proposal, adoption, and first specification of the C3 collider concept it is of primary importance to...
The large-scale Water-based Liquid Scintillator (WbLS) detector is a new opportunity for the neutrino community to accomplish competent long-baseline neutrino oscillation and unprecedented low-energy neutrino measurements. Several table-top WbLS detection systems have been implemented at BNL and LBNL.
It is critical to advance further with a mid-scale demonstrator to understand and tune the...
Liquid Xenon Time Projection Chambers have dominated the search for dark matter in the form of Weakly Interacting Massive Particles. The current generation (LZ, XENONnT, and PandaX) are becoming sensitive to coherent elastic neutrino-nucleus scatters from the Boron-8 solar neutrino component of the neutrino fog. However, current limits from these detectors are still two orders of magnitude...
Liquid xenon (LXe) detectors are used in many experiments, including the proposed searches for dark matter and neutrinoless double-beta decay, DARWIN and nEXO. LXe scintillates in vacuum ultraviolet (VUV) region, and understanding optical properties of materials and photosensors in this region is important for maximizing sensitivity of these experiments. LIXO is a setup dedicated to such...
NuDot serves as a significant testbed for liquid scintillator research and development, with a primary objective of reducing one of the major challenges encountered in large-scale liquid scintillator neutrinoless double beta decay (0νββ) investigations—the solar neutrino background. Utilizing machine learning techniques and high-speed electronics, NuDot aims to showcase its capability in...
Detecting the detailed 3D topology of ionization in detectors is broadly desirable for enabling new techniques in nuclear and particle physics. One example is the directional detection of nuclear recoils from neutrinos or dark matter, which may prove critical for probing dark matter beneath the neutrino fog and affirming its galactic origin. Gaseous time projection chambers (TPCs) can enable...
Plastic scintillators are common materials in sampling calorimeters. At proton-proton colliders such as the LHC, the intense radiation environment can alter their optical properties, including the index of refraction. We present measurements of the change in the index of refraction for doses between 12 and 70 kGy and show that the size of the change depends on the presence of oxygen. We do...
The ATLAS detector will be upgraded to cope with challenging new conditions at the HL-LHC. The upgrades will include extended geometric coverage and finer detector resolution. The success of the research programs at the HL-LHC will strongly rely on tracking performance. Reconstructing individual particles in the HL-LHC collision environment with thousands of charged particles being produced...
The ATLAS experiment is currently preparing for the High Luminosity LHC era, scheduled to begin in a few years time with the start of run 4. ATLAS will be upgraded to support at least 200 simultaneous proton-proton interactions per bunch crossing. As part of these upgrades, the trigger system is also being upgraded to support a 10x increase in readout rate, and-- for the first time-- a...
An upgraded all silicon Inner Tracker (ITk) is under construction for the HL-LHC upgrade of the ATLAS detector. This new detector system will be required to maintain and improve tracking performance and vertex reconstruction in the high pileup environment and to handle the increased radiation expected in the HL-LHC. ITk is comprised of the silicon strip and silicon pixel detectors. The US is...
The Large Hadron Collider (LHC) collides bunches of protons spaced 25 ns apart at a total center of momentum energy of 13.6 TeV, producing an event rate of 40 MHz. This generates about a petabyte worth of information every second, but this is far too much data to feasibly save for offline analysis. To increase the chances of saving interesting physics events, the ATLAS detector implements a...
The CMS Collaboration is preparing to build a new high-granularity end-cap calorimeter, the HGCAL, to be installed as a replacement end-cap calorimeter for the High Luminosity LHC era. We discuss silicon modules that will make up the electromagnetic compartment and a large fraction of the hadronic compartment of HGCAL and delve into the operations involved in assembling and testing these...
The instantaneous luminosity of the Large Hadron Collider at CERN will be increased by about a factor of five with respect to the design value by undergoing an extensive upgrade program over the coming decade. The largest phase-1 upgrade project for the ATLAS Muon System was the replacement of the first station in the forward regions with the New Small Wheels (NSWs) which took place during the...
