NuOscProbExact: a general-purpose code to compute exact two-flavor and three-flavor neutrino oscillation probabilities

Bustamante, Mauricio

doi:10.48550/arxiv.1904.12391

Cited by 4 publications

(3 citation statements)

References 127 publications

(172 reference statements)

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“…To compute the exact matter oscillations probabilities numerically in a three-flavour admixture scenario, we use the general-purpose NOPE code (Bustamante 2019), constructing the two Hamiltonians with their associated neutrino effective potential in each case.…”

Section: Resultsmentioning

confidence: 99%

Neutrino propagation in winds around the central engine of sGRB

Morales,

Fraija

2021

Preprint

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Since neutrinos can escape from dense regions without being deflected, they are promising candidates to study the new physics at the sources that produce them. With the increasing development of more sensitive detectors in the coming years, we will infer several intrinsic properties from incident neutrinos. In particular, we centralise our study in those produced by thermal processes in short gamma-ray bursts (sGRBs) and their interactions within the central engine's anisotropic medium. On the one hand, we consider baryonic winds produced with a strong magnetic contribution, and on the other hand, we treat only neutrino-driven winds. First, we obtain the effective neutrino potential considering both baryonic density profiles around the central engine. Then, we get the three-flavour oscillation probabilities in this medium to finally calculate the expected neutrino ratios. We find a stronger angular dependence on the expected neutrino ratios, which, incidentally, contrast from the expected theoretical ratios without considering the winds' additional contribution. The joint analysis of this observable, together with the sGRB ejected jet angle, might lead to an effective mechanism to discriminate between the involved merger progenitors (black hole-neutron star or neutron star-neutron star), acting as an additional detection channel to gravitational waves.

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Section: Resultsmentioning

confidence: 99%

Neutrino propagation in winds around the central engine of sGRB

Morales,

Fraija

2021

Preprint

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“…Note that, we have considered the normal ordering of neutrino mass as true hierarchy throughout the analysis. We have modified the NuOscProbExact package [96] to include the scalar NSI effects. NuOscProbExact is a python-based neutrino oscillation probability generator that uses SU(2) and SU(3) expansions of the evolution operators to compute exact two-flavour and three-flavour neutrino oscillation probabilities for time-independent Hamiltonian.…”

Section: Effects On Oscillation Probabilitiesmentioning

confidence: 99%

Exploring the effects of scalar non standard interactions on the CP violation sensitivity at DUNE

Medhi

Dutta

Devi

2022

J. High Energ. Phys.

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The Neutrino oscillations have provided an excellent opportunity to study new-physics beyond the Standard Model, popularly known as BSM. The unknown couplings involving neutrinos, termed non-standard interactions (NSI), may appear as ‘new-physics’ in different neutrino experiments. The neutrino NSI offers significant effects on neutrino oscillations and CP-sensitivity, which may be probed in various neutrino experiments. The idea of neutrinos coupling with a scalar has evolved recently and looks promising. The effects of scalar NSI may appear as a perturbation to the neutrino mass matrix in the neutrino Hamiltonian. It modifies the neutrino mass matrix and may provide a direct possibility of probing neutrino mass models. As the scalar NSI affects the neutrino mass matrix in the Hamiltonian, its effect is energy independent. Moreover, the matter effects due to scalar NSI scales linearly with the matter density.In this work, we have performed a model-independent study of the effects of scalar NSI at long baseline neutrino experiments, taking DUNE as a case study. We have performed such a thorough study for DUNE for the first time. Various neutrino parameters may get affected due to the inclusion of scalar NSI as it modifies the effective mass matrix of neutrinos. We have explored the impact of scalar NSI in neutrino oscillations and its impact on the measurements of various mixing parameters. We have probed the effects of scalar NSI on different oscillation channels relevant to the experiment. We have also explored the impact of various possible elements in the scalar NSI term on the CP-violation sensitivity at DUNE.

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“…To validate our analytical expressions of probabilities, we have checked the probabilities with a neutrino oscillation probability generator. For this purpose, we have used the NuOscProbExact package [92] and modified it to incorporate the scalar NSI parameters. Then we have generated the probabilities for both SI and some chosen values of NSI elements.…”

Section: Analytical Expressions Of Oscillation Probabilitiesmentioning

confidence: 99%

Exploring the effects of Scalar Non Standard Interactions on the CP violation sensitivity at DUNE

Medhi,

Dutta,

Devi

2021

Preprint

View full text Add to dashboard Cite

Neutrino oscillations have provided an excellent opportunity to study new physics beyond the Standard Model or popularly known as BSM. The unknown couplings involving neutrinos, termed as Non Standard Interactions (NSIs), may appear as 'new physics' in different neutrino experiments. The neutrino NSIs offer significant effects in neutrino oscillations and CP sensitivity, which may be probed in various neutrino experiments. The idea of neutrinos coupling with a scalar has evolved recently and looks promising. The effects of scalar NSI may appear as a perturbation to the neutrino mass matrix in the neutrino Hamiltonian. Also, as it modifies the neutrino mass matrix, it may provide a direct possibility of probing neutrino mass models. As the scalar NSI affects the neutrino mass matrix in the Hamiltonian, its effect is energy independent. Moreover, the matter effects due to scalar NSI scales linearly with the matter density.In this work, we have performed a model independent study of the effects of scalar NSI at long baseline neutrino experiments, taking DUNE as a case study. We have done such a thorough study for the first time for DUNE. Various neutrino parameters may get affected due to the inclusion of scalar NSI as it modifies the effective mass matrix of neutrinos. We have explored the impact of scalar NSI in neutrino oscillations and its impact on the measurements of various mixing parameters. Also, we have probed the effects of scalar NSI on different oscillation channels relevant to the experiment. We have also explored the impact of various possible elements in the scalar NSI term at DUNE.

show abstract

NuOscProbExact: a general-purpose code to compute exact two-flavor and three-flavor neutrino oscillation probabilities

Cited by 4 publications

References 127 publications

Neutrino propagation in winds around the central engine of sGRB

Neutrino propagation in winds around the central engine of sGRB

Exploring the effects of scalar non standard interactions on the CP violation sensitivity at DUNE

Exploring the effects of Scalar Non Standard Interactions on the CP violation sensitivity at DUNE

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