Implementation of the Martini-Ericson-Chanfray-Marteau RPA-based neutrino and antineutrino cross-section model in the GENIE neutrino event generator

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Main Authors: Russo, Lavinia, Martini, Marco, Dolan, Stephen, Munteanu, Laura, Popov, Boris, Giganti, Claudio
Format: Preprint
Published: 2025
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author Russo, Lavinia
Martini, Marco
Dolan, Stephen
Munteanu, Laura
Popov, Boris
Giganti, Claudio
author_facet Russo, Lavinia
Martini, Marco
Dolan, Stephen
Munteanu, Laura
Popov, Boris
Giganti, Claudio
contents We discuss the first implementation of the Martini-Ericson-Chanfray-Marteau random phase approximation-based (anti)neutrino cross-section model for quasielastic (1p1h) and multinucleon (2p2h and 3p3h) excitations in the widely used GENIE neutrino event generator. Validation steps are presented, in particular, through direct comparisons of GENIE cross-section output with original calculations performed by the authors of the model. Predictions for $^{12}$C, $^{16}$O, and $^{40}$Ar are compared with some available T2K and MicroBooNE experimental measurements showing a reasonable agreement.
format Preprint
id arxiv_https___arxiv_org_abs_2508_13939
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Implementation of the Martini-Ericson-Chanfray-Marteau RPA-based neutrino and antineutrino cross-section model in the GENIE neutrino event generator
Russo, Lavinia
Martini, Marco
Dolan, Stephen
Munteanu, Laura
Popov, Boris
Giganti, Claudio
High Energy Physics - Experiment
High Energy Physics - Phenomenology
We discuss the first implementation of the Martini-Ericson-Chanfray-Marteau random phase approximation-based (anti)neutrino cross-section model for quasielastic (1p1h) and multinucleon (2p2h and 3p3h) excitations in the widely used GENIE neutrino event generator. Validation steps are presented, in particular, through direct comparisons of GENIE cross-section output with original calculations performed by the authors of the model. Predictions for $^{12}$C, $^{16}$O, and $^{40}$Ar are compared with some available T2K and MicroBooNE experimental measurements showing a reasonable agreement.
title Implementation of the Martini-Ericson-Chanfray-Marteau RPA-based neutrino and antineutrino cross-section model in the GENIE neutrino event generator
topic High Energy Physics - Experiment
High Energy Physics - Phenomenology
url https://arxiv.org/abs/2508.13939