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Matter Density Profile Shape Effects at DUNE
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Quantum mechanical interactions between neutrinos and matter along the path of propagation, the Wolfenstein matter effect, are of particular importance for the upcoming long-baseline neutrino oscillation experiments, specifically the Deep Underground Neutrino Experiment (DUNE). Here, we explore specifically what about the matter density profile can be measured by DUNE, considering both the shape and normalization of the profile between the neutrinos' origin and detection. Additionally, we explore the capability of a perturbative method for calculating neutrino oscillation probabilities and whether this method is suitable for DUNE. We also briefly quantitatively explore the ability of DUNE to measure the Earth's matter density, and the impact of performing this measurement on measuring standard neutrino oscillation parameters.
Forward citations
Cited by 4 Pith papers
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Fibonacci Fast Convergence for Neutrino Oscillations in Matter
Applying the vacuum 2-3 rotation and then repeatedly eliminating the largest off-diagonal matrix element makes the effective Hamiltonian converge with an error order that grows like the Fibonacci sequence.
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Effects of the Matter Potential at One-Loop Level on Neutrino Oscillations in Long-Baseline Experiments
Including the Standard Model one-loop correction to the matter potential, a 2.0% increase when expressed with G_mu, improves DUNE's mass-ordering sensitivity by about 0.4 sigma and reaches 5 sigma four to nine days earlier.
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On T-Invariance Violation in Neutrino Oscillations and Matter Effects
Matter-induced T-invariance violation in neutrino oscillations requires an asymmetric matter potential along the neutrino path, and for Earth-bound experiments the effect is numerically tiny.
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Earth-Density Effects in Long Baseline Neutrino Experiments
Realistic Earth density profiles introduce energy-dependent structures in neutrino oscillation probabilities that path-averaged models miss, potentially biasing CP phase inference in long-baseline experiments.
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