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PreprintarXiv licencearXiv

Wigner distribution modeling of nuclear state in NuWro Monte Carlo event generator

  • Rwik Dharmapal Banerjee
  • Alexis Nikolakopoulos
  • Jan T. Sobczyk
  • Hemant Prasad
  • Krzysztof M. Graczyk
  • José L. Bonilla
  • Beata E. Kowal
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Abstract

We develop a method to use the Wigner distribution (WD) description of the nuclear initial state of 12C, 16O, 40Ar, and 56Fe for quasielastic scattering in the NuWro Monte Carlo event generator. We propose two different algorithms to deal with the problem of negative values of the WDs. In our treatment, finite-nucleus WDs provide a correlation between the position and the momentum of bound nucleons that is very different from what is assumed in the standard approaches based on the Fermi gas model and spectral functions. We show that the use of WDs leads to effects that can be measured experimentally and may be relevant for future neutrino oscillation experiments.

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Cite

BibTeXRIS
BibTeX
@misc{banerjee2026wigner,
  title = {{Wigner distribution modeling of nuclear state in NuWro Monte Carlo event generator}},
  author = {Rwik Dharmapal Banerjee and Alexis Nikolakopoulos and Jan T. Sobczyk and Hemant Prasad and Krzysztof M. Graczyk and José L. Bonilla and Beata E. Kowal},
  howpublished = {arXiv},
  year = {2026},
  month = nov,
  doi = {10.48550/arxiv.2611.07817},
  eprint = {2611.07817},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2611.07817},
}
RIS
TY  - UNPB
TI  - Wigner distribution modeling of nuclear state in NuWro Monte Carlo event generator
AU  - Rwik Dharmapal Banerjee
AU  - Alexis Nikolakopoulos
AU  - Jan T. Sobczyk
AU  - Hemant Prasad
AU  - Krzysztof M. Graczyk
AU  - José L. Bonilla
AU  - Beata E. Kowal
PY  - 2026
DA  - 2026/11/05
PB  - arXiv
DO  - 10.48550/arxiv.2611.07817
UR  - https://arxiv.org/abs/2611.07817
AB  - We develop a method to use the Wigner distribution (WD) description of the nuclear initial state of ^12C, ^16O, ^40Ar, and ^56Fe for quasielastic scattering in the NuWro Monte Carlo event generator. We propose two different algorithms to deal with the problem of negative values of the WDs. In our treatment, finite-nucleus WDs provide a correlation between the position and the momentum of bound nucleons that is very different from what is assumed in the standard approaches based on the Fermi gas model and spectral functions. We show that the use of WDs leads to effects that can be measured experimentally and may be relevant for future neutrino oscillation experiments.
ER  -