Journal Description
Physical Sciences Forum
Physical Sciences Forum
is an open access journal dedicated to publishing findings resulting from academic conferences, workshops and similar events in the area of physical sciences. Each conference proceeding can be individually indexed, is citable via a digital object identifier (DOI) and freely available under an open access license. The conference organizers and proceedings editors are responsible for managing the peer-review process and selecting papers for conference proceedings.
Latest Articles
Measurement of Double-Differential Cross-Sections for Mesonless Charged Current Neutrino Scattering on Argon with MicroBooNE
Phys. Sci. Forum 2023, 8(1), 33; https://doi.org/10.3390/psf2023008033 - 08 Aug 2023
Abstract
►
Show Figures
The MicroBooNE liquid argon time projection chamber experiment is pursuing a broad range of neutrino physics measurements, including some of the first high-statistics results for neutrino–argon scattering cross-sections. At the neutrino energies relevant for MicroBooNE and its companion experiments in the Fermilab Short-Baseline
[...] Read more.
The MicroBooNE liquid argon time projection chamber experiment is pursuing a broad range of neutrino physics measurements, including some of the first high-statistics results for neutrino–argon scattering cross-sections. At the neutrino energies relevant for MicroBooNE and its companion experiments in the Fermilab Short-Baseline Neutrino program, the dominant event topology involves mesonless final states containing one or more protons. A complete description of these events requires modeling the contributions of quasielastic and two-particle, two-hole neutrino interactions, as well as more inelastic reaction modes in which final state pions are reabsorbed by the residual nucleus. Refinements to the current understanding of these processes, informed by new neutrino cross-section data, will enable a precise and reliable interpretation of future measurements of neutrino oscillations and searches for exotic physics processes involving neutrinos. This proceeding presents the first double-differential cross-section results from MicroBooNE for mesonless charged current scattering of muon neutrinos on argon.
Full article
Open AccessProceeding Paper
Online Machine-Learning-Based Event Selection for COMET Phase-I
by
, , , , , and
Phys. Sci. Forum 2023, 8(1), 32; https://doi.org/10.3390/psf2023008032 - 03 Aug 2023
Abstract
►▼
Show Figures
In many modern particle physics experiments, high-rate data handling is one of the most critical challenges due to the increase in particle intensity required to achieve higher statistics. We will tackle the challenge in the COMET experiment by developing the sub-microseconds ultra-fast machine
[...] Read more.
In many modern particle physics experiments, high-rate data handling is one of the most critical challenges due to the increase in particle intensity required to achieve higher statistics. We will tackle the challenge in the COMET experiment by developing the sub-microseconds ultra-fast machine learning (ML) algorithm implemented inside FPGAs to search for the lepton flavour violation process, a -e conversion, using the world’s most intense muon beam. Our previous study showed that a trigger algorithm based on a gradient-boosted decision tree will realise the sufficient trigger performance within 3.2 s with a cut-based event classification. In this paper, we further investigated neural network algorithms as event classifications. For the feasibility test, a multi-layer perceptron (MLP) model was implemented inside the FPGA, and the preliminary results are presented.
Full article
Figure 1
Open AccessProceeding Paper
Searching for Charged Lepton Flavour Violation with Mu3e
Phys. Sci. Forum 2023, 8(1), 30; https://doi.org/10.3390/psf2023008030 - 02 Aug 2023
Abstract
►▼
Show Figures
The observation of lepton flavour violation (LFV) in the charged lepton sector would be an unambiguous sign of physics beyond the Standard Model (BSM), and thus, it is the channel of choice for many BSM searches. LFV searches in muon decays in particular
[...] Read more.
The observation of lepton flavour violation (LFV) in the charged lepton sector would be an unambiguous sign of physics beyond the Standard Model (BSM), and thus, it is the channel of choice for many BSM searches. LFV searches in muon decays in particular benefit from the fact that muons can be easily produced at high rates. There is a global effort to search for LFV at high-intensity muon sources to which the upcoming Mu3e experiment at the Paul Scherrer Institute (PSI) will contribute. The Mu3e Collaboration aims to perform a background-free search for the LFV decay with an unprecedented sensitivity in the order of 10−15 in the first phase of operation and 10−16 in the final phase—an improvement over the preceding SINDRUM experiment by four orders of magnitude. The high muon stopping rates and low momenta of the decay electrons make high demands on momentum and time resolution and on the data acquisition. The innovative experimental concept is based on a tracking detector built from novel ultra-thin silicon pixel sensors and scintillating fibres and tiles as well as online event reconstruction and filtering in real time.
Full article
Figure 1
Open AccessProceeding Paper
Calibration Strategy for the JUNO Experiment
Phys. Sci. Forum 2023, 8(1), 31; https://doi.org/10.3390/psf2023008031 - 01 Aug 2023
Abstract
►▼
Show Figures
Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton liquid scintillator-based neutrino experiment, being built in the Guangdong province in Southern China. JUNO will act as a multipurpose observatory for neutrinos produced by artificial and natural sources. The detector calibration is a crucial
[...] Read more.
Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton liquid scintillator-based neutrino experiment, being built in the Guangdong province in Southern China. JUNO will act as a multipurpose observatory for neutrinos produced by artificial and natural sources. The detector calibration is a crucial and challenging tile for the success of the JUNO rich physics programme; its strategy is based on the periodical deployment of radioactive sources within the liquid scintillator. The hardware design consists of several independent and low-background subsystems able to deploy the sources in multiple positions, to optimize the energy resolution and to provide a detailed assessment of the detector energy response. By exploiting this comprehensive calibration program, along with a dual calorimetry technique based on two independent photosensor systems, the JUNO central detector will be able to achieve a better than 1% energy linearity and a 3% effective energy resolution, which are crucial requirements for the neutrino mass ordering determination. In the following, the JUNO calibration strategy and requirements, along with the system hardware design and the simulation results, will be outlined.
Full article
Figure 1
Open AccessProceeding Paper
Total Neutron Cross-Section Measurement on CH with a Novel 3D-Projection Scintillator Detector †
by
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , and add
Show full author list
remove
Hide full author list
Phys. Sci. Forum 2023, 8(1), 29; https://doi.org/10.3390/psf2023008029 - 01 Aug 2023
Abstract
►▼
Show Figures
Long-baseline neutrino oscillation experiments rely on detailed models of neutrino interactions on nuclei. These models constitute an important source of systematic uncertainty, partially because detectors to date have been unable to detect final state neutrons. A novel three-dimensional projection scintillator tracker will be
[...] Read more.
Long-baseline neutrino oscillation experiments rely on detailed models of neutrino interactions on nuclei. These models constitute an important source of systematic uncertainty, partially because detectors to date have been unable to detect final state neutrons. A novel three-dimensional projection scintillator tracker will be a component of the upgraded off-axis near detector of the T2K experiment. Due to the good timing resolution and fine granularity, this technology is capable of measuring neutron kinematics in neutrino interactions on an event-by-event basis and will provide valuable data for refining neutrino interaction models. A prototype is exposed to the neutron beamline at Los Alamos National Laboratory with neutron energies between 0 and 800 MeV. In order to demonstrate the capability to measure neutron kinematics, the total neutron–scintillator cross section as a function of the neutron kinetic energy is measured.
Full article
Figure 1
Open AccessProceeding Paper
Muons: A Gateway to New Physics
Phys. Sci. Forum 2023, 8(1), 28; https://doi.org/10.3390/psf2023008028 - 01 Aug 2023
Abstract
►▼
Show Figures
The discovery of neutrino oscillations is the first laboratory evidence of New Physics beyond the Standard Model. Oscillating neutrinos necessarily imply that neutrinos are massive and that (neutral) lepton flavour is violated. However, a signal of charged lepton flavour violation (cLFV) has so
[...] Read more.
The discovery of neutrino oscillations is the first laboratory evidence of New Physics beyond the Standard Model. Oscillating neutrinos necessarily imply that neutrinos are massive and that (neutral) lepton flavour is violated. However, a signal of charged lepton flavour violation (cLFV) has so far eluded experimental discovery. In this proceeding, we review some phenomenological implications of the current experimental bounds (and future sensitivities) on observables related to muons, with particular attention to charged lepton flavour violating processes. In connection to neutrino masses, we also highlight some phenomenological implications of leptonic CP violation on cLFV observables.
Full article
Figure 1
Open AccessProceeding Paper
Charged-Meson-Induced New Physics in Beam-Focused Neutrino Experiments
by
Phys. Sci. Forum 2023, 8(1), 27; https://doi.org/10.3390/psf2023008027 - 31 Jul 2023
Abstract
►▼
Show Figures
We discuss the phenomenology of dark-sector signals coming not only from the conventionally-used neutral meson decays but also from recently-realized charged-meson decays. We argue that charged mesons can be overlooked even though there are efficient sources of dark-sector particles. Two applications are presented:
[...] Read more.
We discuss the phenomenology of dark-sector signals coming not only from the conventionally-used neutral meson decays but also from recently-realized charged-meson decays. We argue that charged mesons can be overlooked even though there are efficient sources of dark-sector particles. Two applications are presented: a dark-sector interpretation of the MiniBooNE excess and an anomalous appearance of in the near detector of beam-focused neutrino experiments.
Full article
Figure 1
Open AccessProceeding Paper
Searches for Dark Matter in the Sun with the IceCube Neutrino Telescope
Phys. Sci. Forum 2023, 8(1), 26; https://doi.org/10.3390/psf2023008026 - 31 Jul 2023
Abstract
►▼
Show Figures
The IceCube detector is particularly sensitive to high-energy neutrinos due to its size and photosensor spacing. In this review we present results from the search for dark matter in the sun and earth, including a search for dark matter that annihilates into a
[...] Read more.
The IceCube detector is particularly sensitive to high-energy neutrinos due to its size and photosensor spacing. In this review we present results from the search for dark matter in the sun and earth, including a search for dark matter that annihilates into a metastable mediator that subsequently decays into standard model particles and a search for solar atmospheric neutrinos that present a significant background to solar dark matter searches. We present the results from different searches for dark matter in the sun and the earth in this proceeding paper.
Full article
Figure 1
Open AccessProceeding Paper
JUNO Status and Physics Potential
Phys. Sci. Forum 2023, 8(1), 25; https://doi.org/10.3390/psf2023008025 - 28 Jul 2023
Abstract
►▼
Show Figures
The Jiangmen Underground Neutrino Observatory (JUNO) is a neutrino experiment under construction in an underground laboratory with a 650 m rock overburden near Jiangmen in southern China. The detector’s main component will be 20 kton of liquid scintillator held in a spherical acrylic
[...] Read more.
The Jiangmen Underground Neutrino Observatory (JUNO) is a neutrino experiment under construction in an underground laboratory with a 650 m rock overburden near Jiangmen in southern China. The detector’s main component will be 20 kton of liquid scintillator held in a spherical acrylic vessel. The experiment is designed for the determination of neutrino mass ordering, one of the key open questions in neutrino physics. This measurement will be based on observations of the vacuum oscillation pattern of antineutrinos from two nuclear power plants at a baseline of 53 km. The estimated sensitivity is 3 in about six years with 26.6 GW of reactor power. A key ingredient for the success is an excellent and extremely challenging energy resolution of 3% at 1 MeV. The light produced by the scintillator will be seen by 17,612 large twenty-inch PMTs and 25,600 small three-inch PMTs. The OSIRIS detector will monitor the radio purity of the liquid scintillator during the months-long filling process of the main detector. The unoscillated antineutrino spectrum from one reactor core will be measured with unprecedented precision by the Taishan Antineutrino Observatory (TAO), located at a baseline of about 30 m. JUNO is expected to substantially improve the precision of , , and neutrino oscillation parameters. Astrophysical measurements of solar, geo-, supernova, DSNB, and atmospheric neutrinos, as well as searching for proton decay and dark matter, are integral parts of the vast JUNO physics program. This contribution reviews the physics goals and current status of the JUNO project.
Full article
Figure 1
Open AccessProceeding Paper
First Result of the High Repetition Operation in J-PARC MR
Phys. Sci. Forum 2023, 8(1), 23; https://doi.org/10.3390/psf2023008023 - 26 Jul 2023
Abstract
►▼
Show Figures
We performed beam studies with a cycling period of 1.36 s in the main ring synchrotron (MR) of Japan Proton Accelerator Research Complex (J-PARC) after hardware upgrade to enable high repetition operation. After optics tuning, we have successfully controlled the beam with an
[...] Read more.
We performed beam studies with a cycling period of 1.36 s in the main ring synchrotron (MR) of Japan Proton Accelerator Research Complex (J-PARC) after hardware upgrade to enable high repetition operation. After optics tuning, we have successfully controlled the beam with an intensity of protons per bunch, corresponding to a beam power of 740 kW considering the beam survival ratio, during the beam injection period. We have verified the beam optics for the 740 kW FX operation. Split quadrupole families caused three-fold symmetry breaking of the beam optics, resulting in deterioration of the beam survivals. We are planning further beam loss reduction by adding correction quadrupole magnetic fields and recovering the three-fold symmetry.
Full article
Figure 1
Open AccessProceeding Paper
A Monitored Neutrino Beam at the European Spallation Source
by
, , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , and add
Show full author list
remove
Hide full author list
Phys. Sci. Forum 2023, 8(1), 24; https://doi.org/10.3390/psf2023008024 - 25 Jul 2023
Abstract
►▼
Show Figures
Monitored neutrino beams are facilities where beam diagnostics enable the counting and identification of charged leptons in the decay tunnel of a narrow band beam. These facilities can monitor neutrino production at the single particle level (flux precision %) and provide
[...] Read more.
Monitored neutrino beams are facilities where beam diagnostics enable the counting and identification of charged leptons in the decay tunnel of a narrow band beam. These facilities can monitor neutrino production at the single particle level (flux precision %) and provide information about the neutrino energy at the 10% level. The ENUBET Collaboration has demonstrated that lepton monitoring might be achieved not only by employing kaon decays but also by identifying muons from the decays and positrons from the decay-in-flight of muons before the hadron dump. As a consequence, beam monitoring can be performed using the ENUBET technique even when the kaon production yield is kinematically suppressed. This finding opens up a wealth of opportunities for measuring neutrino cross-sections below 1 GeV. In this paper, we investigate this opportunity at the European Spallation Source (ESS), which is an ideal facility to measure and cross-sections in the 0.2–1 GeV range. We also describe the planned activities for the design of this beam at the ESS within the framework of the ESS SB+ design study, which was approved by the EU in July 2022.
Full article
Figure 1
Open AccessProceeding Paper
Status of the Short-Baseline Near Detector at Fermilab
Phys. Sci. Forum 2023, 8(1), 22; https://doi.org/10.3390/psf2023008022 - 25 Jul 2023
Abstract
►▼
Show Figures
The Short-Baseline Near Detector (SBND) will be 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. The detector is currently in
[...] Read more.
The Short-Baseline Near Detector (SBND) will be 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. The detector is currently in the construction phase and is anticipated to begin operation in 2023. SBND is characterized by superb imaging capabilities and will record over a million neutrino interactions per year. Thanks to its unique combination of measurement resolution and statistics, SBND will carry out a rich program of neutrino interaction measurements and novel searches for physics beyond the Standard Model (BSM). It will enable the potential of the overall SBN sterile neutrino program by performing a precise characterization of the unoscillated event rate, and by constraining BNB flux and neutrino–argon cross-section systematic uncertainties. In this proceedings article, the physics reach, current status, and future prospects of SBND are discussed.
Full article
Figure 1
Open AccessProceeding Paper
[email protected]—A Definitive Search for Noble Neutrinos and Other BSM Physics †
Phys. Sci. Forum 2023, 8(1), 21; https://doi.org/10.3390/psf2023008021 - 25 Jul 2023
Abstract
►▼
Show Figures
The IsoDAR neutrino source comprises a novel compact cyclotron capable of delivering 10 mA of 60 MeV protons in cw mode and a high-power neutrino production target. It has obtained preliminary approval to run at the new underground facility Yemilab in South Korea.
[...] Read more.
The IsoDAR neutrino source comprises a novel compact cyclotron capable of delivering 10 mA of 60 MeV protons in cw mode and a high-power neutrino production target. It has obtained preliminary approval to run at the new underground facility Yemilab in South Korea. IsoDAR will produce a very pure, isotropic source, with a peak neutrino energy of around 6 MeV and an endpoint around 15 MeV. Paired with a kton-scale detector like the planned Liquid Scintillator Counter (LSC) at Yemilab, IsoDAR can measure disappearance through the inverse beta decay (IBD) channel. We expect about IBD events and 7000 – e elastic scatter events in the LSC in five years of running, letting us distinguish many different models for noble (aka sterile) neutrinos and significantly improving existing limits for Non-Standard Interactions (NSIs). Finally, [email protected] is sensitive to new particles produced in the target (such as light X bosons that decay to ). We describe the accelerator developments for IsoDAR that enable us to produce about a mole of neutrinos in five years of running. These include direct injection through a radiofrequency quadrupole, exploiting complex beam dynamics, and applying machine learning in accelerator design and optimization.
Full article
Figure 1
Open AccessProceeding Paper
Interdigital H-Mode Drift Tube Linear Accelerator for a Muon Linear Accelerator
by
, , , , , , , , , , , , , , , , , , , , , , , , , , and add
Show full author list
remove
Hide full author list
Phys. Sci. Forum 2023, 8(1), 20; https://doi.org/10.3390/psf2023008020 - 24 Jul 2023
Abstract
►▼
Show Figures
The muon anomalous magnetic moment ( ) measurement at the Fermilab National Accelerator Laboratory (FNAL-E989) is consistent with a previous experiment at the Brookhaven National Laboratory (BNL-E821), and these results show a deviation of 4.2 standard deviations from the prediction
[...] Read more.
The muon anomalous magnetic moment ( ) measurement at the Fermilab National Accelerator Laboratory (FNAL-E989) is consistent with a previous experiment at the Brookhaven National Laboratory (BNL-E821), and these results show a deviation of 4.2 standard deviations from the prediction of the Standard Model. This deviation may suggest the existence of unknown particles, and a completely different approach from previous experiments is needed for further verification. The J-PARC experiment’s objective is to measure the muon g-2 and the electric dipole moment (EDM) with high precision using a new method with a low-emittance muon beam generated by RF linear acceleration. In this paper, the development of an interdigital H-mode drift tube linac (IH-DTL) for the muon linear accelerator is described.
Full article
Figure 1
Open AccessProceeding Paper
CEνNS Experiment Proposal at CSNS
Phys. Sci. Forum 2023, 8(1), 19; https://doi.org/10.3390/psf2023008019 - 24 Jul 2023
Cited by 1
Abstract
►▼
Show Figures
The detection and cross-section measurement of Coherent Elastic Neutrino–Nucleus Scattering (CEvNS) are vital for particle physics, astrophysics, and nuclear physics. Therefore, a new CEvNS detection experiment is proposed in China. Undoped CsI crystals, each coupled with two Photon Multiplier Tubes (PMTs), will be
[...] Read more.
The detection and cross-section measurement of Coherent Elastic Neutrino–Nucleus Scattering (CEvNS) are vital for particle physics, astrophysics, and nuclear physics. Therefore, a new CEvNS detection experiment is proposed in China. Undoped CsI crystals, each coupled with two Photon Multiplier Tubes (PMTs), will be cooled down to 77 K and placed at the China Spallation Neutron Source (CSNS) to detect the CEvNS signals produced by neutrinos from stopped pion decays occurring within the Tungsten target of CSNS. Owing to the extremely high light yield of pure CsI at 77 K, even though it only has a neutrino flux 60% weaker than the COHERENT experiment, the detectable signal event rate is still expected to be 0.074/day/kg (0.053/day/kg for COHERENT). Low-radioactivity materials and devices will be used to construct the detector, and strong shielding will be applied to reduce the radioactive and neutron background. Dual-PMT readout should be able to reject PMT dark count background. Using all the strategies mentioned above, we hope to reach a 5.1 signal detection significance within six months of data collection with four 3 kg CsI. This paper will discuss the experiment’s design, as well as the estimation of the signal, various kinds of background, and expected signal sensitivity.
Full article
Figure 1
Open AccessProceeding Paper
Coherent Neutrino Scattering and Quenching Factor Measurement
by
Phys. Sci. Forum 2023, 8(1), 18; https://doi.org/10.3390/psf2023008018 - 21 Jul 2023
Abstract
►▼
Show Figures
The latest direct measurements of the germanium quenching factor deviate significantly from the standard Lindhard model for nuclear recoil energies at the sub keV region. Here, we show that the recently measured coherent elastic neutrino–nucleus scattering (CE NS) data from reactor antineutrinos
[...] Read more.
The latest direct measurements of the germanium quenching factor deviate significantly from the standard Lindhard model for nuclear recoil energies at the sub keV region. Here, we show that the recently measured coherent elastic neutrino–nucleus scattering (CE NS) data from reactor antineutrinos can be used to probe the quenching factor model, and a 2 improvement can be achieved in the fit to the measured CE NS data if the quenching factor is described by a modified Lindhard model with a negative value of q, which is also consistent with the direct quenching factor measurement. Constraints on the parameter space of a light vector or scalar mediator that couples to neutrinos and quarks, and on a neutrino magnetic moment, are also placed by using the measured CE NS data, and we find that they are quite sensitive to the quenching factor model at low recoil energies.
Full article
Figure 1
Open AccessProceeding Paper
LDMX: The Light Dark Matter eXperiment and M3: The Muon Missing Momentum Experiment
by
Phys. Sci. Forum 2023, 8(1), 17; https://doi.org/10.3390/psf2023008017 - 20 Jul 2023
Abstract
►▼
Show Figures
The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. The scenario where dark matter originates from thermal contact with familiar matter in the early Universe requires the DM mass to lie within approximately an
[...] Read more.
The constituents of dark matter are still unknown, and the viable possibilities span a very large mass range. The scenario where dark matter originates from thermal contact with familiar matter in the early Universe requires the DM mass to lie within approximately an MeV to 100 TeV. Considerable experimental attention has been given to exploring weakly interacting massive particles in the upper end of this range (few GeV–TeV), while the MeV to GeV region has been steadily gaining more attention in recent years. If there is an interaction between light DM and ordinary matter, as there must be in the case of a thermal origin, then there is a production mechanism in accelerator-based experiments. The Light Dark Matter eXperiment (LDMX) is a planned electron-beam fixed-target missing-momentum experiment that has unique sensitivity to light DM in the sub-GeV range. Of particular interest to the NuFact muon working group is a proposal for a muon LDMX that uses a muon beam to probe the electron-phobic scenario. This contribution will provide an overview of the theoretical motivation, the main experimental challenges, how they are addressed, and the projected sensitivities in comparison to other experiments.
Full article
Figure 1
Open AccessProceeding Paper
Sensitivity to Cabibbo-Suppressed Λ Production in MicroBooNE
Phys. Sci. Forum 2023, 8(1), 16; https://doi.org/10.3390/psf2023008016 - 20 Jul 2023
Abstract
►▼
Show Figures
The MicroBooNE detector is a liquid argon time projection chamber (LArTPC) with an 85 ton active mass that receives flux from the Booster Neutrino and the Nutrinos from the Main Injector (NuMI) beams, providing excellent spatial resolution of the reconstructed final-state particles. Since
[...] Read more.
The MicroBooNE detector is a liquid argon time projection chamber (LArTPC) with an 85 ton active mass that receives flux from the Booster Neutrino and the Nutrinos from the Main Injector (NuMI) beams, providing excellent spatial resolution of the reconstructed final-state particles. Since 2015, MicroBooNE has accumulated many neutrino and anti-neutrino scattering events with argon nuclei enabling searches for rare interaction channels. The Cabibbo-suppressed production of hyperons in anti-neutrino–nucleus interactions provides sensitivity to a range of effects, including second-class currents, SU(3) symmetry violations and reinteractions between the hyperon and the nuclear remnant. This channel exclusively involves anti-neutrinos, offering an unambiguous constraint on wrong-sign contamination. The effects of nucleon structure and final state interactions are distinct from those affecting the quasielastic channel and modify the and production cross sections in different ways, providing new information that could help to break their degeneracy. Few measurements of this channel have been made, primarily in older experiments such as Gargamelle. We present the sensitivity of the MicroBooNE experiment to the cross section for direct (Cabibbo-suppressed) production in muon anti-neutrino interactions, using anti-neutrinos from the off-axis NuMI beam.
Full article
Figure 1
Open AccessProceeding Paper
Calibrating for Precision Calorimetry in LArTPCs at ICARUS and SBN
by
Phys. Sci. Forum 2023, 8(1), 15; https://doi.org/10.3390/psf2023008015 - 20 Jul 2023
Abstract
►▼
Show Figures
The Short-Baseline Neutrino (SBN) Program at Fermilab consists of multiple Liquid Argon Time Projection Chamber (LArTPC) detectors in a single neutrino beam. SBN will have a broad physics program that includes GeV-scale neutrino cross section measurements and physics searches beyond the Standard Model
[...] Read more.
The Short-Baseline Neutrino (SBN) Program at Fermilab consists of multiple Liquid Argon Time Projection Chamber (LArTPC) detectors in a single neutrino beam. SBN will have a broad physics program that includes GeV-scale neutrino cross section measurements and physics searches beyond the Standard Model including a search for short-baseline neutrino oscillations. Especially for the oscillation program at SBN (and, looking ahead, at DUNE) it is imperative to have accurate and precise energy measurements that can be related to the true neutrino energy. At ICARUS, we have developed a precise energy scale calibration procedure to match the needs of these physics goals. Two innovations are important here. First, diffusion plays a role in determining the energy scale in LArTPC calibration in a manner unappreciated by previous experiments. Second, incorporating systematic uncertainties into the energy scale calibration fit allows for a precise determination of the uncertainty of calorimetric measurements in a way that could be propogated to higher-level analyses. The result from the calibration procedure outlined herein is now being applied to neutrino beam data at ICARUS.
Full article
Figure 1
Open AccessProceeding Paper
T2K Latest Results on Neutrino–Nucleus Cross-Sections
by
Phys. Sci. Forum 2023, 8(1), 14; https://doi.org/10.3390/psf2023008014 - 20 Jul 2023
Abstract
►▼
Show Figures
A detailed understanding of neutrino–nucleus interactions is essential for the precise measurement of neutrino oscillations at long baseline experiments, such as T2K. The T2K near detector complex, designed to constrain the T2K flux and cross-section models, also provides a complementary program of neutrino
[...] Read more.
A detailed understanding of neutrino–nucleus interactions is essential for the precise measurement of neutrino oscillations at long baseline experiments, such as T2K. The T2K near detector complex, designed to constrain the T2K flux and cross-section models, also provides a complementary program of neutrino interaction cross-section measurements. Through the use of multiple target materials (carbon, water, lead, iron), and the ability to sample different neutrino spectra (with detectors located on- and off-axis with respect to the beam direction), T2K is able to investigate atomic number and energy dependence of interaction cross-sections in a single experiment. In particular, T2K has recently performed the first joint on-/off-axis measurement of the charged current channel without pion in the final state. Furthermore, dedicated efforts are devoted to investigating rare or poorly studied interaction channels. Indeed, an improved analysis of the coherent pion production cross-section was recently accomplished, including an anti-neutrino sample for the first time. Those results, together with an overview of the T2K measurement strategy, adopted to reduce the model dependence, will be presented in these proceedings.
Full article
Figure 1