-
Ana Amelia Bergamini Machado (University of Campinas UNICAMP (BR)), Luciano Maiani (Sapienza Universita e INFN, Roma I (IT)), Rogerio Rosenfeld (Instituto de Física Teórica - UNESP & ICTP-SAIFR & LIneA)26/08/2024, 09:00
-
Ricardo Galvao26/08/2024, 09:30
-
Dr Sylvio Canuto (FAPESP)26/08/2024, 10:00
-
Ettore Segreto (University of Campinas UNICAMP (BR))26/08/2024, 11:00
Liquid argon is an excellent medium for detecting particles, given its yields and transport properties of light and charge. The technology of liquid argon time projection chambers has reached its full maturity after four decades of continuous developments and is, or will be, used in world class experiments for neutrino and dark matter searches. The collection of ionization charge in these...
Go to contribution page -
Shivaraj Mulleria Babu26/08/2024, 11:25
The Short-Baseline Near Detector (SBND) is a LArTPC approximately 110 meters from the Fermilab’s Booster Neutrino Beam (BNB) intended to measure neutrino cross sections and aid in excess electron-like neutrino searches.
Go to contribution page
The electric field inside the SBND-TPC may have distortions due to a number of reasons, such as the space charge effect. The space charge effect comes from the abundance of... -
Samuel James Fogarty (Colorado State University (US))26/08/2024, 11:50
The Deep Underground Neutrino Experiment (DUNE) uses the Liquid Argon Time Projection Chamber (LArTPC) technology to study the neutrino oscillation phenomenon using a long baseline. Beyond neutrino oscillations, the project has a broad and extensive physics program. To ensure precise and accurate spatial and calorimetric resolution in the DUNE LArTPCs, it is important to be able to calibrate...
Go to contribution page -
Prashansa Mukim (Brookhaven National Laboratory)26/08/2024, 12:15
In this talk we present CHARMS250, a next-generation cryogenic front-end application specific integrated circuit (ASIC) designed in a 65 nm process for low-noise readout of charge or light signals generated within noble liquid time projection chambers (TPCs). The design of CHARMS250 is evolved from the LArASIC chip, which was manufactured in a 180 nm process and has been selected as the first...
Go to contribution page -
Amy Cottle26/08/2024, 14:00Dark matterOral
The LUX-ZEPLIN (LZ) experiment is a dark matter direct detection experiment operating almost a mile underground at the Sanford Underground Research Facility in Lead, South Dakota. LZ uses a 7 active-tonne dual-phase xenon time projection chamber primarily designed to detect weakly interacting massive particles (WIMPs), a well-motivated class of dark matter candidate. This talk will give the...
Go to contribution page -
Nicola Canci (INFN)26/08/2024, 14:40
DarkSide is a graded experimental project based on low background radiopure argon with the aim of the direct dark matter searches to probe the dark matter parameter space down and into the neutrino fog.
Go to contribution page
The experiment is presently under construction at INFN Gran Sasso National Laboratory.
The detector is constituted by a dual-phase liquid argon time-projection-chamber, acting as inner... -
Maria Cecilia Queiroga Bazetto (University of Liverpool)26/08/2024, 15:05
The DarkSide-20k experiment, currently under construction at the Gran Sasso National Laboratory (LNGS), represents a significant advancement in the field of direct Dark Matter (DM) detection. Utilizing a liquid argon dual-phase time projection chamber (LArTPC) with a 20-tonne fiducial mass, DarkSide-20k is designed to extend the sensitivity limits in the search for Weakly Interacting Massive...
Go to contribution page -
Maximo David Ave Pernas (Universidade de São Paulo)26/08/2024, 15:30
The Recoil Directionality project (ReD) within the Global Argon Dark Matter Collaboration characterized the response of a liquid argon (LAr) dual-phase Time Projection Chamber (TPC) to neutron-induced nuclear recoils, to measure the charge yield at low-energy. The charge yield is a critical parameter for the experiments searching for dark matter in the form of low-mass WIMPs and measurements...
Go to contribution page -
Sparshita Dey (University of Oxford)26/08/2024, 15:55
Dual-phase noble liquid time projection chambers (TPCs) are at the forefront of direct dark matter detection experiments. Their functionality hinges on a meticulously designed homogeneous electric field structure defined by electrodes, material properties, and the relative permittivities of gas and liquid. These fields impact recombination processes within the target liquid (e.g xenon) and...
Go to contribution page -
A. M. Caffer (UNICAMP)26/08/2024, 16:50
In this work, we have explored the potential of oxygen capture in Liquid Argon (LAr) of the innovative CuO dispersive layered double hydroxide media (R-LDH) and the Ce-doped R-LDH. Low-temperature experiments in the LAr Purification Cryostat (PuLArC) at IFGW/Unicamp were performed using LAr circulation through two filters, one containing the R-LDH (or the Ce-doped R-LDH) material and the other...
Go to contribution page -
Ana Paula A. Mendonça (Universidade Estadual de Campinas - UNICAMP)26/08/2024, 16:50
The quality, durability, and efficiency of a thin film heavily depend on surface cleaning procedures, deposition mechanisms, and pre- and/or post-deposition heat treatment. The annealing process, in turn, allows for the molecular rearrangement of the film, promoting its molecular chains to attain their most stable state possible, which can enhance the aforementioned properties. This study...
Go to contribution page -
Vikas Gupta (Nikhef National institute for subatomic physics (NL))26/08/2024, 16:50
TPB is the standard wavelength shifter used in liquid argon/xenon experiments to convert scintillation light from deep UV to visible wavelengths, where typical photodetectors have non-negligible light detection efficiency. While TPB offers high light conversion efficiency, its use presents challenges: it is an organic powder that is difficult to deposit as a thin film on substrates like glass...
Go to contribution page -
Vinicius do Lago Pimentel (Center of Information Technology Renato Archer)26/08/2024, 16:50
The SBND (Short Baseline Near Detector) is the near detector of the Short Baseline Neutrino Program (SBN) at Fermilab. Positioned 110 meters from the neutrino beam, the SBND will gather extensive data on neutrino-argon interactions. The SBND experiment utilizes the Liquid Argon Time Projection Chamber (LArTPC) technology for detection.
The Photon Detection System (PDS) consists of a passive...
Go to contribution page -
Lucca Longhitano Pagliuso (Universidade Estadual de Campinas)26/08/2024, 16:50
We studied the conversion efficiency of Vacuum Ultra Violet light of PTP films as a function of their thickness. The PTP films were coated on dichroic filters or glasses at the Leptons Laboratory, Universidade Estadual de Campinas, using the vacuum evaporation technique. The arrangement of the filters within the evaporation chamber was done to ensure different levels of pTp deposition, with...
Go to contribution page -
Prachi Sharma26/08/2024, 16:50
EMPHATIC (Experiment to Measure the Production of Hadrons At a Test beam In Chicagoland) is a Fermilab-based table-top size experiment focused on hadron production measurements. Flux is a limiting systematic for all neutrino cross section measurements by current experiments and we rely on a-priori predictions of the flux for analyses, including measurements of neutrino oscillations,...
Go to contribution page -
Gabriel Gomes Dos Santos (UNICAMP)26/08/2024, 16:50
Liquid noble detectors are highly dependent on wavelength shifter materials, such as p-Terphenyl (pTP) and tetra-phenyl-butadine (TPB). These materials are key to the DUNE's far detector (for the former) and the DUNE's near detector, the SBDN and ICARUS (for the latter), for instance. Given their significance, it is of extreme importance to fully comprehend and characterize these compounds to...
Go to contribution page -
Dr Luciana Hirsch (Universidade Tecnológica Federal do Paraná)26/08/2024, 16:50
Liquid argon-based scintillation detectors are essential for dark matter searches and neutrino physics. The light detection in such detectors is still an object of research for large volumes. Liquid argon scintillation light is generated in the vacuum ultraviolet region, so it can undergo Rayleigh scattering and absorption before it gets detected. Using wavelength shifters may improve the...
Go to contribution page -
Camila Pierobão (Unicamp)26/08/2024, 16:50
Author: Camila Pierobão
The Short-Baseline Near Detector (SBND) is one of three Liquid Argon Time Projection Chamber (LArTPC) neutrino detectors positioned along the axis of the Booster Neutrino Beam (BNB) at Fermilab, as part of the Short-Baseline Neutrino (SBN) Program. Located only 110 m from the BNB target, it will precisely characterize the neutrino flux before oscillations take...
Go to contribution page -
Lorena Muchak, VITOR DE SOUZA TEIXEIRA (Universidade Tecnológica Federal do Paraná)26/08/2024, 16:50
Study of geometric efficiency of photon detection in LArTPC using Monte Carlo simulation
V. S. Teixeira1, L. C. Muchak1, A. F. S. Lisboa1, M. Adames1, M. Antoniassi1
1Universidade Tecnológica Federal do Paraná - UTFPR, Brazil
Abstract
The Deep Underground Neutrino Experiment (DUNE) is a...
Go to contribution page -
Pedro Zilves Maio Ventura (São Paulo University)26/08/2024, 16:50
In the context of the search for dark matter scattering signals with the nucleus, experiments using liquefied noble gases, such as argon (LAr) and xenon (LXe), play a significant role. The direct detection of dark matter particles with masses above 1 GeV/c² has already been extensively explored. Attention now turns to the low-mass region. An attractive opportunity in this region is the...
Go to contribution page -
Viktor Pec (FZU - Institute of Physics of the Czech Academy of Sciences)26/08/2024, 16:50
The Deep Underground Neutrino Experiment (DUNE) is an experiment under construction that will employ 10-kt scale liquid-argon-TPC technology to do precision measurements of neutrino oscillations. Apart from the determination of CP violation in neutrino interactions, one of the main scientific goals of DUNE is the detection of neutrinos from a supernova burst. It is imperative to maximise the...
Go to contribution page -
Laura Paulucci (UFABC)26/08/2024, 16:50
The need for a microscopic description of scintillation light generation in liquid argon becomes increasingly desirable with the upcoming operation of large scale LArTPCs in the next decade. While a detailed mathematical account of the process is still to be achieved, a phenomenological model for simultaneously treating ionization and scintillation, LArQL, has been successfully employed to...
Go to contribution page -
Prof. Dirceu Noriler (UNICAMP), Mr Pedro Bianchi Neto (UNICAMP)27/08/2024, 09:00
Liquefied ultra-pure noble gases are typically the chosen target for neutrino and dark matter experiments. Commonly, the required grade of purity of such cryogenic liquids in terms of oxygen contamination (< 100 ppt), which makes it necessary for the Gaseous Argon (GAr) and/or the Liquid Argon (LAr) to circulate through adsorption columns filled, typically, with BASF Cu-0226S and Mol Sieve 4A...
Go to contribution page -
Ricardo Peres (University of Zurich)27/08/2024, 09:20
The DARWIN project aims to build and operate a next-generation observatory for dark matter and neutrino physics, featuring a time projection chamber (TPC) with a proposed active target of 40 t of liquid xenon (LXe). Xenoscope is a full-scale vertical demonstrator for the future DARWIN detector built at the University of Zürich. Its main objective is to demonstrate electron drift over...
Go to contribution page -
Prof. Yi Wang (Institute of High Energy Physics, Chinese Academy of Sciences)27/08/2024, 09:45
Low background detectors, such as those used in direct dark matter searches, require high-efficient neutron veto to reject nuclear recoil backgrounds. Gadolinium-doped polymethyl methacrylate (Gd-PMMA) has emerged as a promising solid neutron tagging material, with high hydrogen content for moderating neutrons and gadolinium content for capturing thermal neutrons and exploiting subsequent...
Go to contribution page -
Bruno Gelli (UNICAMP)27/08/2024, 10:10
Photodetection systems in liquid noble element experiments often utilize external wavelength shifter films deposited over optical elements; however, this method is susceptible to issues such as loss of efficiency, cross-contamination, and mechanical and chemical stress. Our research group has developed MagLITe (Magnesium fluoride Light collection Improvement technique) to address these...
Go to contribution page -
Marcin Kuzniak (AstroCeNT / NCAC Polish Academy of Sciences), Sarthak Choudhary27/08/2024, 11:10
Scale-up of light collection scheme is a major challenge for the future multi-tonne detectors with surface area of many hundreds or even thousands of square meters. Large-format polymeric wavelength shifting foils are a compelling alternative to traditional vacuum evaporated coatings. Inspired by the success polyethylene naphthalate (PEN), which already finds use in large liquid argon...
Go to contribution page -
Sarthak Choudhary (Nicolaus Copernicus Astronomical Center of the Polish Academy of Sciences)27/08/2024, 11:30
Efficient Wavelength Shifters (WLS) are crucial for liquid Argon (LAr) detectors. As the LAr detectors grow larger in volume, the scalability of WLS becomes an important concern. Tetraphenyl butadiene (TPB), which is the most common WLS in use, becomes impractical for LAr detectors with more than 100 m^2 of surface area due to its high cost and energy requirements.
DarkSide-20k veto...
Go to contribution page -
Francesco Di Capua (Universita Federico II e INFN Sezione di Napoli (IT))27/08/2024, 11:50
Silicon PhotoMultipliers (SiPMs) are being explored as potential photosensors employed in detectors operating at low temperatures, such as noble liquid (argon or xenon) experiments used in direct dark matter searches and neutrino physic investigations. Several studies have been conducted to optimize the features of these silicon photosensors, and many tests have been performed to improve the...
Go to contribution page -
Marco Guarise (Universita e INFN, Ferrara (IT))27/08/2024, 12:10
The Deep Underground Neutrino Experiment (DUNE) is an upcoming neutrino physics experiment that will answer some of the most compelling questions in particle physics and cosmology. The DUNE Far Detector (FD) exploits silicon photomultipliers (SiPMs) to detect scintillation photons produced by the interaction of charged particles in the liquid Argon time projection chamber (LarTPC). Light...
Go to contribution page -
Maricke Flierman (Nikhef)27/08/2024, 12:30
The novel square Hamamatsu R12699-106-M4 2-inch photomultiplier tubes (PMT) feature a four-anode readout in a single low-profile package with a high photocathode coverage (about 75%). This makes them attractive as potential light detectors in future liquid-xenon based direct detection dark matter experiments, such as DARWIN/XLZD. The low-profile reduces buoyancy and therefore the amount of...
Go to contribution page -
Gabriel Botogoske (INFN)27/08/2024, 15:00
The Deep Underground Neutrino Experiment (DUNE) has a broad physics program primarily aiming to probe CP violation in the neutrino sector and to identify the neutrino mass hierarchy. In addition, the search for proton decay, the observation of supernova neutrino bursts, and the investigation of solar neutrinos are also goals of the DUNE, which can be enhanced by the Photon Detection System...
Go to contribution page -
Sergio Manthey Corchado (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))27/08/2024, 15:20
DUNE is a long-baseline (1300 km) neutrino experiment hosted at FNAL aimed at measuring neutrino mass ordering and CP violation by observing neutrino oscillations. DUNE will deploy four Liquid-Argon Time-Projection-Chamber (LArTPC) detectors with a combined mass of approximately 70 kT. The reconstruction of particle interactions, both from the beam and other sources, is achieved by collecting...
Go to contribution page -
Franciole Marinho (Instituto Tecnológico de Aeronáutica)27/08/2024, 15:40
The Deep Underground Neutrino Experiment currently under construction in the US will be a long-baseline neutrino oscillation experiment dedicated to determining the neutrino mass ordering and to measure the CP violation phase in the lepton sector. DUNE will also perform studies of non-beam physics such as atmospheric neutrinos, bursts from supernovae and nucleon decays in which photon...
Go to contribution page -
Dr Andre Fabiano Steklain Lisboa27/08/2024, 16:00
The Deep Underground Neutrino Experiment (DUNE) aims to probe CP violation in the neutrino sector and identify the neutrino mass hierarchy. In addition, using the DUNE Photon Detection System (PDS) can aid in reconstruction using charge information, improving the search for proton decay, observing supernova neutrino bursts, and studying solar neutrinos. DUNE will employ liquid argon time...
Go to contribution page -
Dr Nicolo Tosi (INFN Bologna, Bologna (IT))28/08/2024, 09:00
Most conventional noble liquid detectors employ scintillation light as either a timing signal for a TPC or as a calorimetric measurement, or both. Its relative amplitude and timing on multiple detectors can also be used to approximately locate an interaction.
Go to contribution page
Scintillation imaging goes a step further. By developing a suitable optical system, coupled with finely segmented SiPM arrays, it is... -
Márcio Adames (Federal University of Technology - Paraná (UTFPR))28/08/2024, 09:20
We consider the relativistic photon diffusion equation for unbounded media of Lemiux et al, to which we present an analytical solution in terms of the physical parameters of a LArTPC. We account for photon absorption at the boundaries through physical considerations, instead of a boundary value problem. Then we compare our results to several Geant4 simulations and analyze the results and...
Go to contribution page -
Gustavo Do Amaral Valdiviesso (Universidade Federal de Alfenas)28/08/2024, 09:40
In this work, the algorithm for simulating scintillation is examined, particularly the one used in the Geant4 toolkit. Being widely adopted in experimental particle physics, Geant4 became the standard for detector simulation, including those based on noble elements, which in turn are used due to their scintillation properties. Geant4 algorithms for scintillation physics are 20 years old and...
Go to contribution page -
Ajib Paudel (Fermi National Accelerator Lab. (US))28/08/2024, 10:00
Neutrons from the cavern in the DUNE Far Detector present a significant background in the low energy regime of a few MeV. Additionally, neutrons appear as the final state product in many low energy neutrino interaction channels in argon. Identifying the neutron capture signature is crucial for the DUNE low energy program. Neutron capture in argon releases a cascade of gamma rays, with the...
Go to contribution page -
Matteo Vicenzi (Brookhaven National Laboratory (US))28/08/2024, 11:10
ICARUS is the largest Liquid Argon Time Projection Chamber (LArTPC) in operation and serves as the Far Detector of the Short Baseline Neutrino (SBN) program at Fermilab. It aims to investigate the possible existence of sterile neutrinos with $\Delta m^2$ ≈ 1 eV$^2$ using the Booster Neutrino Beam (BNB) and explore physics beyond the Standard Model with the Neutrinos at the Main Injector (NuMI)...
Go to contribution page -
Amos Breskin (Weizmann Institute of Science (IL)), Gonzalo Martinez Lema (Weizmann Institute of Science), Vitali Tchepel (LIP - Laboratorio de Instrumentação e Física Experimental de Partículas (PT))28/08/2024, 11:35
Single-phase noble-liquid detectors have been proposed as a potential solution to the limitations introduced by the liquid-gas interface of dual-phase time projection chambers.
Following our previous research on electroluminescence (EL) production in liquid xenon (LXe) using a classical microstrip plate design, we report our findings on the operation in LXe of a microstrip plate with a...
Go to contribution page -
Riccardo Brugnera (Universita' di Padova and INFN)28/08/2024, 12:00
-
28/08/2024, 14:00
-
Roberto Santorelli (CIEMAT - Centro de Investigaciones Energéticas Medioambientales y Tec. (ES))28/08/2024, 14:30
-
Prof. Yi Wang (Institute of High Energy Physics, Chinese Academy of Sciences)28/08/2024, 15:30
-
Ana Amelia Machado (UNICAMP)28/08/2024, 15:40
Choose timezone
Your profile timezone: