• Rapid Communication

Mean-field and two-body nuclear effects in inclusive electron scattering on argon, carbon, and titanium: The superscaling approach

M. B. Barbaro, J. A. Caballero, A. De Pace, T. W. Donnelly, R. González-Jiménez, and G. D. Megias
Phys. Rev. C 99, 042501(R) – Published 18 April 2019

Abstract

We compare the predictions of the superscaling approach (SuSAv2) model including two-particle two-hole meson-exchange currents with the recent JLab data for inclusive electron scattering on three different targets (C, Ar, and Ti). The agreement is very good over the full energy spectrum, with some discrepancy seen only in the deep inelastic region. The 2p2h response, peaked in the dip region between the quasielastic and Δ-resonance peak, is essential to reproduce the data. We also analyze the kF (Fermi momentum) dependence of the data in terms of scaling of the second kind, showing that the 2p2h response scales very differently from the quasielastic one, in full accord with what is predicted by the model. The results represent a valuable test of the applicability of the model to neutrino scattering processes on different nuclei.

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  • Received 5 February 2019

DOI:https://doi.org/10.1103/PhysRevC.99.042501

©2019 American Physical Society

Physics Subject Headings (PhySH)

Nuclear PhysicsParticles & Fields

Authors & Affiliations

M. B. Barbaro1, J. A. Caballero2, A. De Pace3, T. W. Donnelly4, R. González-Jiménez5, and G. D. Megias2,6

  • 1Dipartimento di Fisica, Università di Torino and INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
  • 2Departamento de Física Atómica, Molecular y Nuclear, Universidad de Sevilla, 41080 Sevilla, Spain
  • 3INFN, Sezione di Torino, Via P. Giuria 1, 10125 Torino, Italy
  • 4Center for Theoretical Physics, Laboratory for Nuclear Science and Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
  • 5Grupo de Física Nuclear, Departamento de Estructura de la Materia, Física Térmica y Electrónica, Facultad de Ciencias Físicas, Universidad Complutense de Madrid, CEI Moncloa, Madrid 28040, Spain
  • 6IRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, France

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Issue

Vol. 99, Iss. 4 — April 2019

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