65 citations · 371 across the 37 of their papers we have counts for
39 papers
Interplay between final-state nucleon distortion, nuclear transparency and intranuclear cascade models in neutrino event generators
R. González-Jiménez, A. Nikolakopoulos, J. McKean +7
We present an overview of the relativistic distorted-wave impulse approximation (RDWIA) for lepton-nucleus scattering, with emphasis on its use as an elementary-vertex model in eve…
Electromagnetic responses induced by one- and two-body nuclear currents in inclusive electron-nucleus scattering
Kajetan Niewczas, Ashish Kumar Jha, Raúl González-Jiménez +3
The longitudinal and transverse nuclear response functions encode information about the electromagnetic behavior of the nuclear target probed in inclusive electron-nucleus scatteri…
Explicitly on-shell currents in relativistic mean field models
Alexis Nikolakopoulos, Ryan Plestid
Relativistic mean field models are a useful tool for modeling semi-leptonic scattering and photo production on nuclei. When using free-nucleon currents, it is often claimed that th…
Continuum contribution to charged-current absorption of low-energy on Ar
Steven Gardiner, Pablo Barham Alzás, Alexis Nikolakopoulos +3
Accurate modeling of the absorption of tens-of-MeV on Ar is needed to enable measurements of astrophysical neutrinos using large liquid argon time projection chamber (…
Charged-Current Neutrino-Induced Single-Pion Production in the Superscaling Approach and Relativistic Distorted-Wave Impulse Approximation
Jesus Gonzalez-Rosa, Alexis Nikolakopoulos, Maria B. Barbaro +3
In this work, we present a detailed comparison of the SuSAv2 (SuperScaling Approach version 2) and RDWIA (Relativistic Distorted-Wave Impulse Approximation) models with measurement…
Computing neutrino cross sections from Euclidian responses
Alexis Nikolakopoulos, Noemi Rocco
Energy integrated neutrino cross sections are integrals of nuclear responses weighted with kinematic prefactors. We decompose the prefactors into a limited set of functions of ener…
Factorized distorted wave calculations for electron, neutrino, and BSM processes
Alexis Nikolakopoulos, Raúl González-Jiménez
We point out that, under certain conditions, the nuclear currents that couple to vector bosons can be written as the trace of the product of two matrices. One contains `nucleon dyn…
Electron-induced single-pion production to constrain the neutron structure in Ar. A proof of concept
J. García-Marcos, M. Hooft, T. Franco-Munoz +5
We study electron-induced single-pion production as a way to constrain the neutron structure of Ar, information that is necessary for neutrino experiments using argon detect…
Single pion-production and pion propagation in Achilles
Joshua Isaacson, William Jay, Alessandro Lovato +4
We extend the applicability of Achilles (A CHIcagoLand Lepton Event Simulator) by incorporating the single-pion production mechanism in a fully exclusive fashion. The electroweak i…
Quark Phase Space Distributions in Nuclei
Alexis Nikolakopoulos, Gerald A. Miller
In [PRC 110, 025201], the authors construct a model for nuclear matter which features a quarkyonic phase. A main feature in this model is that the nucleon occupation is strongly re…
Neutrino Scattering: Connections Across Theory and Experiment
L. Alvarez-Ruso, A. M. Ankowski, A. Ashkenazi +31
In this document drafted by the Neutrino Scattering Theory Experiment Collaboration (NuSTEC), we provide input on the synergies between theoretical and experimental efforts that ca…
Efficient Monte Carlo Event Generation for Neutrino-Nucleus Exclusive Cross Sections
Mathias El Baz, Federico Sánchez, Natalie Jachowicz +3
Modern neutrino-nucleus cross section predictions need to incorporate sophisticated nuclear models to achieve greater predictive precision. However, the computational complexity of…
Final-state interactions in neutrino-induced proton knockout from argon in MicroBooNE
A. Nikolakopoulos, A. Ershova, R. González-Jiménez +5
Neutrino event generators make use of intranuclear cascade models (INCs), to predict the kinematics of hadrons produced in neutrino-nucleus interactions. We perform a consistent co…
The Ghent Hybrid Model in NuWro: a new neutrino single-pion production model in the GeV regime
Qiyu Yan, Kajetan Niewczas, Alexis Nikolakopoulos +5
Neutrino-induced single-pion production constitutes an essential interaction channel in modern neutrino oscillation experiments, with its products building up a significant fractio…
The Superscaling Variable and Neutrino Energy Reconstruction, From Theoretical Predictions to Experimental Limitations
Dana Douqa, Stefania Bordoni, Lorenzo Giannessi +3
We introduce the novel approach of using the superscaling variable as an observable and an analysis tool in the context of charged current neutrino-nucleus interactions. We study t…
Towards a more complete description of nucleon distortion in lepton-induced single-pion production at low-
J. García-Marcos, T. Franco-Munoz, R. González-Jiménez +3
Theoretical predictions for lepton-induced single-pion production (SPP) on C are revisited in order to assess the effect of different treatments of the current operator. On…
Lepton-Nucleus Interactions within Microscopic Approaches
Alexis Nikolakopoulos, Noah Steinberg, Alessandro Lovato +1
This review paper emphasizes the significance of microscopic calculations with quantified theoretical error estimates in studying lepton-nucleus interactions and their implications…
Relativistic effects in Green's function Monte Carlo calculations of neutrino-nucleus scattering
Alexis Nikolakopoulos, Alessandro Lovato, Noemi Rocco
Microscopic calculations of neutrino-nucleus scattering cross sections are critical for the success of the neutrino-oscillation program. In addition to retaining nuclear correlatio…
From inclusive to semi-inclusive one-nucleon knockout in neutrino event generators
Alexis Nikolakopoulos, Steven Gardiner, Afroditi Papadopoulou +2
In neutrino event generators, for models for neutrino and electron scattering only inclusive cross sections are implemented. When these models are used to describe a semi-inclusive…
Uncertainties on the /, / and / cross-section ratio from the modelling of nuclear effects and their impact on neutrino oscillation experiments
T. Dieminger, S. Dolan, D. Sgalaberna +5
The potential for mis-modeling of /, / and / cross section ratios due to nuclear effects is quantified by considering model spread…
Assessing the theory-data tension in neutrino-induced charged pion production: the effect of final-state nucleon distortion
Alexis Nikolakopoulos, Raúl González-Jiménez, Natalie Jachowicz +1
Pion production on nuclei constitutes a significant part of the total cross section in experiments involving few-GeV neutrinos. Combined analyses of data on deuterium and heavier n…
First Observation of Large Missing-Momentum (e,e'p) Cross-Section Scaling and the onset of Correlated-Pair Dominance in Nuclei
I. Korover, A. W. Denniston, A. Kiral +8
We report the first measurement of -scaling in cross-section ratios off nuclei relative to deuterium at large missing-momentum of MeV/c.…
Electron Scattering and Neutrino Physics
A. M. Ankowski, A. Ashkenazi, S. Bacca +50
A thorough understanding of neutrino-nucleus scattering physics is crucial for the successful execution of the entire US neutrino physics program. Neutrino-nucleus interaction cons…
Benchmarking intra-nuclear cascade models for neutrino scattering with relativistic optical potentials
Alexis Nikolakopoulos, Raúl González-Jiménez, Natalie Jachowicz +3
The description of final-state interactions (FSI) in the large phase space probed in neutrino experiments poses a great challenge. In neutrino experiments, which operate under semi…