ArgonCube is a novel, modular approach to Liquid Argon Time Projection Chambers (LArTPCs). ArgonCube segments the total detector volume into an number of electrically and optically isolated TPCs sharing a common cryostat, providing improved performance while also mitigating technical risks with LAr purity and
electric field. The field shaping uses a continuous resistive plane, a field-shell,...
Measuring neutrino CP violation and mass hierarchy is currently one of the biggest challenges in particle physics. The DUNE neutrino experiment is the next-generation flagship neutrino program in the US designed to solve these problems. The DUNE detector uses liquid argon time projection chamber (LArTPC) technology, considerably improving the spatial resolution, neutrino detection efficiency...
In this work we study the design of three stages used to read and amplifly the signals coming from 48 SiPM detectors connected in parallel. In the pre amplification stage, the charge integrator circuit and the trans-amplifier circuit are proposed, in the addition stage, a simple adder circuit; and, in the final stage, a low pass Sallen Key filter. A circuit analysis of the stages was done...
The radiative type-I seesaw has been already implemented to explain the lightness of Majorana neutrinos with both Majorana and Dirac heavy fermions, and the lightness of Dirac neutrinos with Dirac heavy fermions. In this work we present a minimal implementation of the radiative type-I seesaw with light Dirac neutrinos and heavy Majorana fermions. An inert doublet and a complex singlet scalar...
Deep Underground Neutrino Experiment (DUNE) is a facility to carry out studies related to neutrino science and proton decays. The proposed DUNE facility will consist of two neutrino detectors. The near detector is adjacent to beam source whereas far detector is 1300 Km downstream of the source in South Dakota. In near detector, interaction of Neutrinos with High Pressure Gas Time Projection...
Liquid Scintillator (LS) detectors have been a workhorse for low energy neutrino physics ever since the discovery of these elusive particles in the late fifties. In the traditional implementation of these detectors, the light produced by particle interactions propagates across transparent scintillator volumes to surrounding photo-sensors. This talk introduces a new concept for LS detection...
Machine learning has the potential to enhance the sensitivities of water Cherenkov detectors by improving the event reconstruction, suppressing backgrounds and reducing systematic uncertainties. These improvements will be vital in achieving the precision measurements that current and next-generation detectors are now aiming to perform.
This talk covers several areas where machine learning...
In the Standard Model, we will deduce a configuration with five texture
zeros for the quark mass matrices that it is not of the Fritzsch type. It is valid and generates all the physical quantities of interest: that includes the quark masses, the inner angles of the Cabibbo-Kobayashi-Maskawa unitary triangle, and the phase responsible for the violation of the charge-parity symmetry. To achieve...
Hyper-Kamiokande (Hyper-K) is a next generation, water Cherenkov neutrino detector with 260,000 metric tons of ultra-pure water. It will measure accelerator, cosmic and atmospheric neutrinos to discover CP violation in neutrino oscillations, determine the neutrino mass ordering, as well as potentially discover proton decay. Hyper-K is the far-detector of the 300 km long-baseline neutrino...
In different extensions of the Standard Model of Particle Physics (SMPP), the neutrino acquire electric millicharge and charge radius, as well as electric and magnetic dipole moments, the latter being the most studied property in the literature. However, the possibility that neutrino be a millicharged particle has also been a subject of study in different theoretical and experimental works....
In different extensions of the Standard Model of Particle Physics (SMPP), the neutrino acquire electric millicharge and charge radius, as well as electric and magnetic dipole moments, the latter being the most studied property in the literature. However, the possibility that neutrino be a millicharged particle has also been a subject of study in different theoretical and experimental works....
Connes’ noncommutative geometry (NCG) provides a rigorous framework to build the full Lagrangian of the Standard Model (SM) of particle physics. In this framework, there is an underlying finite space associated with each space-time point. Here, the Higgs field appears naturally as the “connection” linked with this new (dimensionless) space. Despite this achievement, in the minimal NCG SM...
The observation of Earth matter effects in the spectrum of neutrinos coming from a next galactic supernova could, in principle, reveal if neutrino mass ordering is normal or inverted. A way to identify these effects is through the observation of the modulations that appear in the spectrum when neutrinos travel through the Earth before they arrive at the detector. These features in the neutrino...
MicroBooNE is a liquid argon time projection chamber in the Booster
Neutrino Beam at Fermilab. The large event rate and 3 mm wire spacing
of the detector provide high-statistics, precise-resolution imaging of
neutrino interactions leading to low-threshold, high-efficiency event
reconstruction with full angular coverage. As such, this is an ideal
place to probe neutrino-argon interactions...
In a model where the right-handed neutrinos can propagate in a large compactified extra dimension and where the left-handed neutrinos are confined to a 4-dimensional spacetime, the oscillation probability in this model is $P_{\alpha\beta}=|\sum_{k=1}^3U^{\alpha k} U^{\beta k *} A_k|^2$, where $A_k=A_k(L,E_\nu,R_{LED}) = \sum_{n=0}^\infty (L_k^{0n})^2\exp(iL\lambda_k^{(n)2}/2E_\nu R^2)$. In...
The primary goal of MicroBooNE is to address the origin of the excess
of low energy electromagnetic-like events observed by MiniBooNE.
This talk will present MicroBooNE's progress towards a low-energy
excess result, including the status of targeted searches for both
single-photon-like and electron-like events.
We present a long term analysis of temporal evolution of the gamma-ray source W28, which is a supernova remnant (SNR) observed by the Large Area Telescope (LAT) on board of the Fermi Gamma-Ray Space Telescope since 2008. W28 is an old (3.5 - 4.5x104 yr) galactic diffuse gamma-ray source, located ~2kpc away from us, at (l:6.71, b:0.05) . Observed for more than 10 years, W28 is a interesting...
Taishan Antineutrino Observatory
Wei Wang,
On behalf of the JUNO collaboration
Abstract:
Many reactor neutrino experiments observed a ~6% deficit in the reactor antineutrino flux compare with the prediction. In addition, Daya Bay confirmed a new anomaly “5-MeV bump” in the spectrum shape. These anomalies require an accurate measurement of the reactor antineutrino spectrum.
The high...
SiPM are devices widely used in great experiments on high energy physics to measure the energy related to a specific phenomenon and establish its characteristics. Now, an international collaboration leaded by Fermilab and CERN is working on DUNE project, which use high quantities of SiPM organized in structures; these structures operate as transduction paths for response of photon detection...
The main purpose of the Deep Underground Neutrino Experiment (DUNE) is to observe the violation of the charge-parity symmetry in neutrino oscillations, proton decay and supernova neutrinos with a liquid-argon far detector of unprecedented size.
In the near detector complex, a spectrometer system called 3DST-S centered by a 3D projection scintillator tracker (3DST) is proposed and being...
Large-scale monolithic water and scintillator neutrino detectors have, for decades, successfully used photons to detect neutrino interactions. Liquid scintillator detectors, due to their high light yields, have far better energy and position resolutions than achievable in a water Cherenkov detector. The most notable advantage of a water Cherenkov detector is the excellent direction...
Presently, neutrinos are one of the most mysterious and interesting particles in physics, they seem to be the ones that can explain different processes of high energy physics, antimatter, conservation of energy and momentum in radioactive decay, and contribute with important data for cosmology and astrophysics. To better understand their different properties such as mass, parity, oscillations,...
In view of the J-PARC program of upgrades of the beam intensity, the T2K collaboration is preparing towards an increase of the exposure aimed at establishing leptonic CP violation at 3 $\sigma$ level for a significant fraction of the possible $\delta_{CP}$ values. To reach this goal, an upgrade of the T2K near detector ND280 has been launched, with the aim of reducing the overall statistical...
Abstract:
A Deep Underground Neutrino Experiment (DUNE) facility is being set up at Fermi National Accelerator Laboratory. DUNE consisting of two massive particle detectors, one at Fermilab known as Near Detector (ND) and a much larger one to be constructed a mile underneath surface at the Sanford Underground Research Facility in South Dakota (Known as ‘Far Detector’). In the Near Detector,...
