scholarly journals Nuclear Effects and CP Sensitivity at DUNE

2020 ◽  
Vol 2020 ◽  
pp. 1-6 ◽  
Author(s):  
Srishti Nagu ◽  
Jaydip Singh ◽  
Jyotsna Singh ◽  
R. B. Singh
Keyword(s):  
Neutrino Oscillation ◽  
Precise Measurement ◽  
Neutrino Energy ◽  
Final State ◽  
Energy Reconstruction ◽  
Systematic Uncertainties ◽  
Final State Interactions ◽  
Nuclear Effects ◽  
Nuclear Targets

The precise measurement of neutrino-oscillation parameters is one of the highest priorities in neutrino-oscillation physics. To achieve the desired precision, it is necessary to reduce the systematic uncertainties related to neutrino energy reconstruction. An error in energy reconstruction is propagated to all the oscillation parameters; hence, a careful estimation of the neutrino energy is required. To increase the statistics, neutrino-oscillation experiments use heavy nuclear targets like argon (Z=18). The use of these nuclear targets introduces nuclear effects that severely impact the neutrino energy reconstruction which in turn poses influence in the determination of neutrino-oscillation parameters. In this work, we have tried to quantify the presence of nuclear effects on the bounds of the CP phase by DUNE using final state interactions.

scholarly journals Effect of final state interactions on neutrino energy reconstruction at DUNE

2018 ◽  
Vol 933 ◽  
pp. 40-52 ◽  
Author(s):  
Sabeeha Naaz ◽  
Anupam Yadav ◽  
Jyotsna Singh ◽  
R.B. Singh
Keyword(s):  
Neutrino Energy ◽  
Final State ◽  
Energy Reconstruction ◽  
Final State Interactions

scholarly journals Nuclear Effects in Neutrino Interactions and Their Impact on the Determination of Oscillation Parameters

2013 ◽  
Vol 2013 ◽  
pp. 1-16 ◽  
Author(s):  
Omar Benhar ◽  
Noemi Rocco
Keyword(s):  
Neutrino Oscillation ◽  
Cross Sections ◽  
Reaction Mechanisms ◽  
Quantitative Description ◽  
Impulse Approximation ◽  
Neutrino Energy ◽  
Long Baseline ◽  
Nuclear Effects ◽  
The Impact

The quantitative description of the effects of nuclear dynamics on the measured neutrino-nucleus cross sections—needed to reduce the systematic uncertainty of long baseline neutrino oscillation experiments—involves severe difficulties. Owing to the uncertainty on the incoming neutrino energy, different reaction mechanisms contribute to the cross section measured at fixed energy and scattering angle of the outgoing lepton, and must therefore be consistently taken into account within a unified model. We research the theoretical approach based on the impulse approximation and the use of realistic nucleon spectral functions, allowing one to describe a variety of reaction mechanisms active in the broad kinematical range covered by neutrino experiments. The extension of this scheme to include more complex mechanisms involving the two-nucleon currents, which are believed to be important, is also outlined. The impact of nuclear effects on the determination of neutrino oscillation parameters is illustrated by analyzing the problem of neutrino energy reconstruction.

scholarly journals Design and Diagnostics of High-Precision Accelerator Neutrino Beams

2021 ◽  
Vol 11 (4) ◽  
pp. 1644
Author(s):  
Nikolaos Charitonidis ◽  
Andrea Longhin ◽  
Michelangelo Pari ◽  
Elisabetta Giulia Parozzi ◽  
Francesco Terranova
Keyword(s):  
Ab Initio ◽  
Neutrino Oscillation ◽  
High Precision ◽  
Cross Sections ◽  
Neutrino Energy ◽  
Event Reconstruction ◽  
Cent Level ◽  
The Cross

Neutrino oscillation physics has entered a new precision era, which poses major challenges to the level of control and diagnostics of the neutrino beams. In this paper, we review the design of high-precision beams, their current limitations, and the latest techniques envisaged to overcome such limits. We put emphasis on “monitored neutrino beams” and advanced diagnostics to determine the flux and flavor of the neutrinos produced at the source at the per-cent level. We also discuss ab-initio measurements of the neutrino energy–i.e., measurements performed without relying on the event reconstruction at the ν detector–to remove any flux induced bias in the determination of the cross sections.

scholarly journals Study of the hyperon-nucleon interaction via final-state interactions in exclusive reactions

2020 ◽  
Author(s):  
Nicholas Zachariou ◽  
Daniel Watts ◽  
Yordanka Ilieva
Keyword(s):  
Spin Asymmetry ◽  
Thomas Jefferson ◽  
Large Set ◽  
Nuclear System ◽  
Nucleon Interaction ◽  
Final State ◽  
Novel Approach ◽  
Final State Interactions ◽  
Beam Spin Asymmetry

A novel approach that allows access to long-sought information on the Hyperon-Nucleon (YN) interaction was developed by producing a hyperon beam within a few-body nuclear system, and studying final-state interactions. The determination of polarisation observables, and specifically the beam spin asymmetry, in exclusive reactions allows a detailed study of the various final-state interactions and provides us with the tools needed to isolate kinematic regimes where the YN interaction dominates. High-statistics data collected using the CLAS detector housed in Hall-B of the Thomas Jefferson laboratory allows us to obtain a large set of polarisation observables and place stringent constraints on the underlying dynamics of the YN interaction.

scholarly journals SEARCH FOR IN-MEDIUM MODIFICATIONS OF THE ρ MESON

2007 ◽  
Vol 22 (02n03) ◽  
pp. 380-387 ◽  
Author(s):  
◽  
D. P. WEYGAND ◽  
C. DJALALI ◽  
R. NASSERIPOUR ◽  
M. WOOD
Keyword(s):  
Spectral Function ◽  
Vector Mesons ◽  
Medium Effects ◽  
Final State ◽  
Collisional Broadening ◽  
Final State Interactions ◽  
Medium Modifications ◽  
Carbon Iron ◽  
Large Acceptance ◽  
Nuclear Effects

The photoproduction of vector mesons on various nuclei has been studied using the Cebaf Large Acceptance Spectrometer (CLAS) at Jefferson Laboratory, and here we present preliminary results. All three vector mesons, ρ, ω, and ϕ, are observed via their decay to e+e-, in order to reduce the effects of final state interactions in the nucleus. Of particular interest is possible in-medium effects on the properties of the ρ meson. The ρ spectral function is extracted from the data on various nuclei, carbon, iron, and titanium, and compared to the spectrum from liquid deuterium, which is relatively free of nuclear effects. We observe no effects on the mass of the ρ meson, however, there is some widening of the resonance in titanium and iron, which is consistent with expected collisional broadening.

scholarly journals NUCLEAR EFFECTS IN NEUTRINO INDUCED REACTIONS

2008 ◽  
Vol 23 (27n30) ◽  
pp. 2321-2324
Author(s):  
M. J. VICENTE VACAS ◽  
L. ALVAREZ-RUSO ◽  
L. S. GENG ◽  
J. NIEVES ◽  
M. VALVERDE ◽  
...  
Keyword(s):  
Cross Section ◽  
Pion Production ◽  
Medium Energy ◽  
Medium Effects ◽  
Strong Reduction ◽  
Final State ◽  
Pion Wave Function ◽  
Final State Interactions ◽  
Nuclear Effects ◽  
Production Mechanisms

We discuss the relevance of nuclear medium effects in the analysis of some low and medium energy neutrino reactions of current interest. In particular, we study the Quasi-Elastic (QE) process, where RPA correlations and Final State Interactions (FSI) are shown to play a crucial role. We have also investigated the ν induced coherent pion production. We find a strong reduction of the cross section due to the distortion of the pion wave function and the modification of the production mechanisms in the nucleus. The sensitivity of the results to the axial NΔ coupling [Formula: see text] has been also investigated.

scholarly journals Impact of nuclear effects in the determination of neutrino oscillation parameters

2011 ◽  
Author(s):  
Davide Meloni ◽  
S. K. Singh ◽  
J. G. Morfin ◽  
Makoto Sakuda ◽  
K. D. Purohit
Keyword(s):  
Neutrino Oscillation ◽  
Nuclear Effects
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