Since neutrino oscillation was observed, several experiments have been built to measure its parameters. At the present there ia tension between T2K and NOVA. We propose a non-standard neutrino interaction at production. In this scenario, computed by quantum field theory formalism can made a better description of combined data. A new phase from this new interaction can made a role in search for...
This work proposes an adaptation of the parameter verification method for CPT violation and CPT conservation in LIV parameters, as implemented in previous works by other authors using the GLoBES software. The adaptation will be based on the ant colony methodology (ACM) developed in the author's previous works.
The main objective is to reproduce the graphs and values obtained by other authors...
The Lorentz Invariance is deeply connected to Special Relativity, which states that the laws of physics are the same for different observers in relative motion. It is the foundation of other successful theories, like quantum field theory, and connected to fundamental symmetries, like charge, parity, and time reversal (CPT), which is essential in the Standard Model of particle physics....
For the operation of precision neutrino experiments, the understanding of neutrino interactions with matter are preconditioned requirements of all detections and measurements of neutrinos. The largest uncertainties in estimating neutrino-nucleus interaction cross sections arise in the incomplete understanding of nuclear effects. In the study of neutrino oscillations and nuclear scattering...
In recent years, neutron multiplicity associated with neutrino-nucleus interactions has become important observable in large neutrino detectors such as Super-Kamiokande, KamLAND, and JUNO. The neutron multiplicity can be measured by detecting gamma rays emitted by neutron capture by taking delayed coincidence. It is expected to improve the results of various physics analyses by using the...
In nature there are about 50 nuclear systems where the single beta-decay is energetically forbidden, and double beta-decay turns out to be only possible mode of disintegration. It is the nuclear pairing force which causes such an “anomaly”, by making the mass of the odd-odd isobar, (N-1,Z+1), to be greater than the masses of its even-even neighbors, (N,Z) and (N-2,Z-2). The modes by which the...
In High Energy Physics it is essential the study of the particles that make up everything (at least the known baryonic universe). Carrying out a study of these particles is necessary devices (detectors). These devices interact with particles through known physical processes and then, through a data acquisition system, one can proceed for further analysis. In the MINER𝜈A experiment, the...
Future long-baseline neutrino oscillation experiments, such as the Deep Underground Neutrino Experiment (DUNE), aim to measure neutrino oscillation parameters with unprecedented precision.
Such sensitivity demands precise characterization of the incoming neutrino energy, which can only be determined via comprehensive cross-section models. In particular DUNE, which flux peaks at 2.5~GeV,...
The study of neutrino oscillation and its quantumness was studied by means of the Leggett-Garg inequality, which is based on the concept of macrorealism. This research considered the results from the Daya Bay and RENO reactor experiments, as well as the MINOS and NOvA accelerator experiments. It was found that Daya Bay and MINOS exhibit a strong violation of the Leggett-Garg inequality, while...
This poster presents a Monte Carlo simulation implemented with the GiBUU model tailored for neutrino experiments. Specifically, we focus on its implementation, generating events in a generic liquid argon time projection chamber and comparing them with other neutrino event generators such as GENIE. The simulation generates realistic neutrino event samples, contributing to the prediction and...
The existence of oscillating massive neutrinos poses a challenge to the standard model of particle physics (SM). Even standard oscillation theory cannot replicate the experimental results, such as the anomalies in the LSND and MiniBooNE data, pushing physicists to look for new alternatives, such as exploring physics Beyond the Standard Model (BSM). Utilizing a model involving Lorentz...
The Short-Baseline Neutrino program in Fermilab aims to resolve the nature of the low-energy excess events observed in LSND and MiniBooNE, and analyze with unprecedented precision neutrino interactions with argon, which requires reliable estimate of neutrino cross sections. We report updates of the NuWro generator that bring the state-of-the-art spectral functions to model the ground state...
The Standard Model is highly successful in describing the behavior of particles and the nongravitational forces that govern their interactions. However, its limitations hinder our ability to explain certain phenomena, like the observed matter-antimatter asymmetry. Such limitations led to the development of extensions to the Standard Model. Unified theories, such as string theory and loop...
NOvA is a long-baseline neutrino experiment based at Fermilab in the US, with the primary aim of measuring neutrino and antineutrino oscillations. This will enhance our understanding of electroweak interactions by measuring the neutrino mixing angles, CP-violating phase and neutrino mass ordering. To measure these oscillations, we first need to have a deep understanding of how neutrinos and...
The contributions of neutral and charged forbidden and allowed multipole to $\nu- ^{40}$Ar cross sections are evaluated within the QRPA and PQRPA models as function of the neutrino energy in the interval of interest for supernova neutrinos. These calculations are important as input for neutrino generator and simulator as the Marley code used for DUNE experiment.
Single pion production (SPP) is an important interaction mechanism in accelerator-based neutrino experiments, contributing significantly to total cross-sections and impacting precision measurements. Its study is essential for understanding neutrino oscillations, distinguishing signal from background, and refining theoretical models, which will help to reduce systematic errors in the neutrino...
This work describes an alternative tool for the study of matter effects over neutrino propagation, by numerically describing the mixing amplitudes and mass splittings as a function of a single parameter. It allows the description of these observables in the same manner as it is commonly seen in 2-neutrino phenomenology, identifying resonant mixing and level crossing, except in a N-neutrino...
The opacity of the Earth for the incidence of high energy neutrinos is directly related to the neutrino-nucleon cross sections and the description of the distribution of matter in the Earth's interior. In this work we investigate the sensitivity of neutrino transmission to the use of different models for Earth's density profile. In particular, we compare neutrino transmission using the PREM...
This study presented the development and application of two Random Forest (RF) models to KASCADE-Grande data with zenith angles $\theta < 40^{\circ}$, obtained from the KASCADE Cosmic Ray Data Centre. The aim was to predict the primary energy and correct the muon number for systematic effects on an event-by-event basis. Model training involved KCDC simulations using the high-energy hadronic...
In long-baseline neutrino oscillation experiments, Monte Carlo (MC) simulations based on hadron interactions and decays are used to predict the neutrino flux. The 10%-level systematic uncertainty of the predicted neutrino fluxes from these simulations is dominated by uncertainties in hadron interaction cross sections due to limited hadron scattering data. EMPHATIC aims to reduce the neutrino...
The Short-Baseline Near Detector (SBND) is a 100-ton scale Liquid Argon Time Projection Chamber (LArTPC) neutrino detector positioned in the Booster Neutrino Beam (BNB) at Fermilab, as part of the Short-Baseline Neutrino (SBN) program. Located only 110 m from the neutrino production target, SBND is expected to record millions of neutrino interaction events every year allowing neutrino-argon...
The Intermediate Water Cherenkov Detector (IWCD) is a planned component of the Hyper-K long baseline neutrino experiment with vertical mobility capable of scanning a region of the JPARC accelerator-made neutrino beam spectrum. It will contribute to control systematic uncertainties arising from neutrino interaction cross sections and extrapolation of the beam flux between the Hyper-K near and...
Neutrinos are the only known fermions with zero electric charge, and thus far the unique candidates to act as their own antimatter counterpart. If indeed a neutrino is its own antiparticle, we can find processes in which lepton number conservation, a global symmetry of the Standard Model, is violated. Such a discovery would have great implications in neutrino physics and their interactions....