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Title: Meson-exchange currents and quasielastic predictions for charged-current neutrino- C 12 scattering in the superscaling approach

Abstract

We evaluate and discuss the impact of meson-exchange currents (MECs) on charged-current quasielastic neutrino cross sections. Here, we consider the nuclear transverse response arising from two-particle two-hole states excited by the action of electromagnetic, purely isovector meson-exchange currents in a fully relativistic framework based on the work by the Torino Collaboration [A. D. Pace, M. Nardi, W. M. Alberico, T. W. Donnelly, and A. Molinari, Nucl. Phys. A726, 303 (2003)]. An accurate parametrization of this MEC response as a function of the momentum and energy transfers involved is presented. Results of neutrino-nucleus cross sections using this MEC parametrization together with a recent scaling approach for the one-particle one-hole contributions (named SuSAv2) are compared with experimental data.

Authors:
 [1];  [2];  [2];  [2];  [1];  [1];  [3];  [4];  [4];  [5];
  1. Univ. de Sevilla, Sevilla (Spain). Dept. de Física Atómica
  2. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Center for Theoretical Physics, Lab. for Nuclear Science and Dept. of Physics
  3. Istituto Nazionale di Fisica Nucleare, Torino (Italy)
  4. Univ. di Torino (Italy). Dipartimento di Fisica; Istituto Nazionale di Fisica Nucleare, Torino (Italy)
  5. Univ. de Granada, Granada (Spain). Dept. de Física Atómica, Molecular y Nuclear and Instituto Carlos I de Física Teórica y Computacional
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1505741
Alternate Identifier(s):
OSTI ID: 1179354
Grant/Contract Number:  
SC0011090
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 7; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Megias, G. D., Donnelly, T. W., Moreno, O., Williamson, C. F., Caballero, J. A., González-Jiménez, R., De Pace, A., Barbaro, M. B., Alberico, W. M., Nardi, M., and Amaro, J. E. Meson-exchange currents and quasielastic predictions for charged-current neutrino- C12 scattering in the superscaling approach. United States: N. p., 2015. Web. doi:10.1103/physrevd.91.073004.
Megias, G. D., Donnelly, T. W., Moreno, O., Williamson, C. F., Caballero, J. A., González-Jiménez, R., De Pace, A., Barbaro, M. B., Alberico, W. M., Nardi, M., & Amaro, J. E. Meson-exchange currents and quasielastic predictions for charged-current neutrino- C12 scattering in the superscaling approach. United States. doi:10.1103/physrevd.91.073004.
Megias, G. D., Donnelly, T. W., Moreno, O., Williamson, C. F., Caballero, J. A., González-Jiménez, R., De Pace, A., Barbaro, M. B., Alberico, W. M., Nardi, M., and Amaro, J. E. Tue . "Meson-exchange currents and quasielastic predictions for charged-current neutrino- C12 scattering in the superscaling approach". United States. doi:10.1103/physrevd.91.073004. https://www.osti.gov/servlets/purl/1505741.
@article{osti_1505741,
title = {Meson-exchange currents and quasielastic predictions for charged-current neutrino- C12 scattering in the superscaling approach},
author = {Megias, G. D. and Donnelly, T. W. and Moreno, O. and Williamson, C. F. and Caballero, J. A. and González-Jiménez, R. and De Pace, A. and Barbaro, M. B. and Alberico, W. M. and Nardi, M. and Amaro, J. E.},
abstractNote = {We evaluate and discuss the impact of meson-exchange currents (MECs) on charged-current quasielastic neutrino cross sections. Here, we consider the nuclear transverse response arising from two-particle two-hole states excited by the action of electromagnetic, purely isovector meson-exchange currents in a fully relativistic framework based on the work by the Torino Collaboration [A. D. Pace, M. Nardi, W. M. Alberico, T. W. Donnelly, and A. Molinari, Nucl. Phys. A726, 303 (2003)]. An accurate parametrization of this MEC response as a function of the momentum and energy transfers involved is presented. Results of neutrino-nucleus cross sections using this MEC parametrization together with a recent scaling approach for the one-particle one-hole contributions (named SuSAv2) are compared with experimental data.},
doi = {10.1103/physrevd.91.073004},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 7,
volume = 91,
place = {United States},
year = {2015},
month = {4}
}

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