scholarly journals Deep Underground Neutrino Experiment (DUNE) Near Detector Conceptual Design Report

Instruments ◽  
2021 ◽  
Vol 5 (4) ◽  
pp. 31
Author(s):  
Steven Manly ◽  
Mike Kordosky ◽  
On behalf of the DUNE Collaboration
Keyword(s):  
Conceptual Design ◽  
Neutrino Interaction ◽  
Neutrino Beam ◽  
Design And Technology ◽  
Neutrino Experiment ◽  
Long Distance ◽  
Near Detector ◽  
Starting Point ◽  
Deep Underground ◽  
Conceptual Design Report

The Deep Underground Neutrino Experiment (DUNE) is an international, world-class experiment aimed at exploring fundamental questions about the universe that are at the forefront of astrophysics and particle physics research. DUNE will study questions pertaining to the preponderance of matter over antimatter in the early universe, the dynamics of supernovae, the subtleties of neutrino interaction physics, and a number of beyond the Standard Model topics accessible in a powerful neutrino beam. A critical component of the DUNE physics program involves the study of changes in a powerful beam of neutrinos, i.e., neutrino oscillations, as the neutrinos propagate a long distance. The experiment consists of a near detector, sited close to the source of the beam, and a far detector, sited along the beam at a large distance. This document, the DUNE Near Detector Conceptual Design Report (CDR), describes the design of the DUNE near detector and the science program that drives the design and technology choices. The goals and requirements underlying the design, along with projected performance are given. It serves as a starting point for a more detailed design that will be described in future documents.

scholarly journals Light, long-lived B − L gauge and Higgs bosons at the DUNE near detector

2021 ◽  
Vol 2021 (7) ◽  
Author(s):  
P. S. Bhupal Dev ◽  
Bhaskar Dutta ◽  
Kevin J. Kelly ◽  
Rabindra N. Mohapatra ◽  
Yongchao Zhang
Keyword(s):  
Gauge Boson ◽  
Gauge Coupling ◽  
Higgs Bosons ◽  
Neutrino Experiment ◽  
Mass Generation ◽  
Near Detector ◽  
Additional Production ◽  
Order Of Magnitude ◽  
Deep Underground ◽  
Neutrino Mass Generation

Abstract The low-energy U(1)B−L gauge symmetry is well-motivated as part of beyond Standard Model physics related to neutrino mass generation. We show that a light B − L gauge boson Z′ and the associated U(1)B−L-breaking scalar φ can both be effectively searched for at high-intensity facilities such as the near detector complex of the Deep Underground Neutrino Experiment (DUNE). Without the scalar φ, the Z′ can be probed at DUNE up to mass of 1 GeV, with the corresponding gauge coupling gBL as low as 10−9. In the presence of the scalar φ with gauge coupling to Z′, the DUNE capability of discovering the gauge boson Z′ can be significantly improved, even by one order of magnitude in gBL, due to additional production from the decay φ → Z′Z′. The DUNE sensitivity is largely complementary to other long-lived Z′ searches at beam-dump facilities such as FASER and SHiP, as well as astrophysical and cosmological probes. On the other hand, the prospects of detecting φ itself at DUNE are to some extent weakened in presence of Z′, compared to the case without the gauge interaction.

scholarly journals Optimal configurations of the Deep Underground Neutrino Experiment

2016 ◽  
Vol 31 (07) ◽  
pp. 1650020 ◽  
Author(s):  
Vernon Barger ◽  
Atri Bhattacharya ◽  
Animesh Chatterjee ◽  
Raj Gandhi ◽  
Danny Marfatia ◽  
...  
Keyword(s):  
Beam Power ◽  
Neutrino Experiment ◽  
Mass Hierarchy ◽  
Atmospheric Neutrinos ◽  
Near Detector ◽  
Neutrino Sector ◽  
Long Baseline ◽  
Systematic Uncertainties ◽  
Deep Underground ◽  
Using Data

We perform a comprehensive study of the ability of the Deep Underground Neutrino Experiment (DUNE) to answer outstanding questions in the neutrino sector. We consider the sensitivities to the mass hierarchy, the octant of [Formula: see text] and to CP violation using data from beam and atmospheric neutrinos. We evaluate the dependencies on the precision with which [Formula: see text] will be measured by reactor experiments, on the detector size, beam power and exposure time, on detector magnetization, and on the systematic uncertainties achievable with and without a near detector. We find that a 35 kt far detector in DUNE with a near detector will resolve the eightfold degeneracy that is intrinsic to long baseline experiments and will meet the primary goals of oscillation physics that it is designed for.

scholarly journals Long-baseline neutrino oscillation physics potential of the DUNE experiment

2020 ◽  
Vol 80 (10) ◽  
Author(s):  
B. Abi ◽  
R. Acciarri ◽  
M. A. Acero ◽  
G. Adamov ◽  
D. Adams ◽  
...  
Keyword(s):  
Neutrino Oscillation ◽  
Interaction Model ◽  
Neutrino Interaction ◽  
Neutrino Experiment ◽  
Neutrino Sector ◽  
Long Baseline ◽  
Physics Potential ◽  
Charge Parity ◽  
Deep Underground ◽  
Full Simulation

AbstractThe sensitivity of the Deep Underground Neutrino Experiment (DUNE) to neutrino oscillation is determined, based on a full simulation, reconstruction, and event selection of the far detector and a full simulation and parameterized analysis of the near detector. Detailed uncertainties due to the flux prediction, neutrino interaction model, and detector effects are included. DUNE will resolve the neutrino mass ordering to a precision of 5$$\sigma $$ σ , for all $$\delta _{\mathrm{CP}}$$ δ CP values, after 2 years of running with the nominal detector design and beam configuration. It has the potential to observe charge-parity violation in the neutrino sector to a precision of 3$$\sigma $$ σ (5$$\sigma $$ σ ) after an exposure of 5 (10) years, for 50% of all $$\delta _{\mathrm{CP}}$$ δ CP values. It will also make precise measurements of other parameters governing long-baseline neutrino oscillation, and after an exposure of 15 years will achieve a similar sensitivity to $$\sin ^{2} 2\theta _{13}$$ sin 2 2 θ 13 to current reactor experiments.

scholarly journals Adjusting neutrino interaction models and evaluating uncertainties using NOvA near detector data

2020 ◽  
Vol 80 (12) ◽  
Author(s):  
M. A. Acero ◽  
P. Adamson ◽  
G. Agam ◽  
L. Aliaga ◽  
T. Alion ◽  
...  
Keyword(s):  
Cross Sections ◽  
Neutrino Interaction ◽  
Neutrino Beam ◽  
Order Effects ◽  
Interaction Models ◽  
Near Detector ◽  
Neutrino Oscillation Experiment ◽  
Systematic Uncertainties ◽  
Interaction Cross Sections ◽  
Detector Design

AbstractThe two-detector design of the NOvA neutrino oscillation experiment, in which two functionally identical detectors are exposed to an intense neutrino beam, aids in canceling leading order effects of cross-section uncertainties. However, limited knowledge of neutrino interaction cross sections still gives rise to some of the largest systematic uncertainties in current oscillation measurements. We show contemporary models of neutrino interactions to be discrepant with data from NOvA, consistent with discrepancies seen in other experiments. Adjustments to neutrino interaction models in GENIE are presented, creating an effective model that improves agreement with our data. We also describe systematic uncertainties on these models, including uncertainties on multi-nucleon interactions from a newly developed procedure using NOvA near detector data.

A Computational Product Model for Conceptual Design Using SysML

2009 ◽  
Author(s):  
Stefan Wo¨lkl ◽  
Kristina Shea
Keyword(s):  
Product Development ◽  
Conceptual Design ◽  
Mechanical Design ◽  
System Development ◽  
Concept Design ◽  
Product Modeling ◽  
Product Model ◽  
Mechatronic Systems ◽  
Starting Point

The importance of the concept development phase in product development is contradictory to the level and amount of current computer-based support for it, especially with regards to mechanical design. Paper-based methods for conceptual design offer a far greater level of maturity and familiarity than current computational methods. Engineers usually work with software designed to address only a single stage of the concept design phase, such as requirements management tools. Integration with software covering other stages, e.g. functional modeling, is generally poor. Using the requirements for concept models outlined in the VDI 2221 guideline for systematic product development as a starting point, the authors propose an integrated product model constructed using the Systems Modeling Language (SysML) that moves beyond geometry to integrate all necessary aspects for conceptual design. These include requirements, functions and function structures, working principles and their structures as well as physical effects. In order to explore the applicability of SysML for mechanical design, a case study on the design of a passenger car’s luggage compartment cover is presented. The case study shows that many different SysML diagram types are suitable for formal modeling in mechanical concept design, though they were originally defined for software and control system development. It is then proposed that the creation and use of libraries defining generic as well as more complicated templates raises efficiency in modeling. The use of diagrams and their semantics for conceptual modeling make SysML a strong candidate for integrated product modeling of mechanical as well as mechatronic systems.

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