Document Type

Article

Publication Date

2020

DOI

10.1103/PhysRevX.10.031068

Publication Title

Physical Review X

Volume

10

Issue

3

Pages

031068 (1-15)

Abstract

We carry out an ab initio calculation of the neutrino flux-folded inclusive cross sections measured on ΒΉΒ²C by the MiniBooNE and T2K Collaborations in the charged-current quasielastic regime. The calculation is based on realistic two- and three-nucleon interactions, and on a realistic nuclear electroweak current with one- and two-nucleon terms that are constructed consistently with these interactions and reproduce low-energy electroweak transitions. Numerically exact quantum Monte Carlo methods are utilized to compute the nuclear weak response functions, by fully retaining many-body correlations in the initial and final states and interference effects between one- and two-body current contributions. We employ a nucleon axial form factor of the dipole form with or 1.15 GeV, the latter more in line with a very recent lattice QCD determination. The calculated cross sections are found to be in good agreement with the neutrino data of MiniBooNE and T2K, and antineutrino MiniBooNE data, yielding a consistent picture of nuclei and their electroweak properties across a wide regime of energy and momenta.

Rights

Β© 2020 The Authors.

Published under the terms of the Creative Commons Attribution 4.0 International (CC BY 4.0) License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

Original Publication Citation

Lovato, A., Carlson, J., Gandolfi, S., Rocco, N., & Schiavilla, R. (2020). Ab Initio study of (πœˆβ„“, ℓ⁻) and (πœˆβ„“, ℓ⁺) inclusive scattering in ΒΉΒ²C: Confronting the MiniBooNE and T2K CCQE data. Physical Review X, 10(3), 1-15, Article 031068. https://doi.org/10.1103/PhysRevX.10.031068

ORCID

0000-0001-6049-6683 (Schiavilla)

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