Relativistic effects in ab initio electron-nucleus scattering
Abstract
The electromagnetic responses obtained from Green's function Monte Carlo (GFMC) calculations are based on realistic treatments of nuclear interactions and currents. The main limitations of this method comes from its nonrelativistic nature and its computational cost, the latter hampering the direct evaluation of the inclusive cross sections as measured by experiments. We extend the applicability of GFMC in the quasielastic region to intermediate momentum transfers by performing the calculations in a reference frame that minimizes nucleon momenta. Additional relativistic effects in the kinematics are accounted for employing the two-fragment model. In addition, we developed a novel algorithm, based on the concept of first-kind scaling, to compute the inclusive electromagnetic cross section of 4He through an accurate and reliable interpolation of the response functions. A very good agreement is obtained between theoretical and experimental cross sections for a variety of kinematical setups. Finally, this offers a promising prospect for the data analysis of neutrino-oscillation experiments that requires an accurate description of nuclear dynamics in which relativistic effects are fully accounted for.
- Authors:
-
- Univ. of Surrey, Guildford (United Kingdom)
- Univ. di Trento, Trento (Italy); INFN-TIFPA Trento Institute of Fundamental Physics and Applications, Trento (Italy)
- INFN-TIFPA Trento Institute of Fundamental Physics and Applications, Trento (Italy); Argonne National Lab. (ANL), Argonne, IL (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1466405
- Alternate Identifier(s):
- OSTI ID: 1436009
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review C
- Additional Journal Information:
- Journal Volume: 97; Journal Issue: 5; Journal ID: ISSN 2469-9985
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Rocco, Noemi, Leidemann, Winfried, Lovato, Alessandro, and Orlandini, Giuseppina. Relativistic effects in ab initio electron-nucleus scattering. United States: N. p., 2018.
Web. doi:10.1103/PhysRevC.97.055501.
Rocco, Noemi, Leidemann, Winfried, Lovato, Alessandro, & Orlandini, Giuseppina. Relativistic effects in ab initio electron-nucleus scattering. United States. https://doi.org/10.1103/PhysRevC.97.055501
Rocco, Noemi, Leidemann, Winfried, Lovato, Alessandro, and Orlandini, Giuseppina. Fri .
"Relativistic effects in ab initio electron-nucleus scattering". United States. https://doi.org/10.1103/PhysRevC.97.055501. https://www.osti.gov/servlets/purl/1466405.
@article{osti_1466405,
title = {Relativistic effects in ab initio electron-nucleus scattering},
author = {Rocco, Noemi and Leidemann, Winfried and Lovato, Alessandro and Orlandini, Giuseppina},
abstractNote = {The electromagnetic responses obtained from Green's function Monte Carlo (GFMC) calculations are based on realistic treatments of nuclear interactions and currents. The main limitations of this method comes from its nonrelativistic nature and its computational cost, the latter hampering the direct evaluation of the inclusive cross sections as measured by experiments. We extend the applicability of GFMC in the quasielastic region to intermediate momentum transfers by performing the calculations in a reference frame that minimizes nucleon momenta. Additional relativistic effects in the kinematics are accounted for employing the two-fragment model. In addition, we developed a novel algorithm, based on the concept of first-kind scaling, to compute the inclusive electromagnetic cross section of 4He through an accurate and reliable interpolation of the response functions. A very good agreement is obtained between theoretical and experimental cross sections for a variety of kinematical setups. Finally, this offers a promising prospect for the data analysis of neutrino-oscillation experiments that requires an accurate description of nuclear dynamics in which relativistic effects are fully accounted for.},
doi = {10.1103/PhysRevC.97.055501},
journal = {Physical Review C},
number = 5,
volume = 97,
place = {United States},
year = {Fri May 04 00:00:00 EDT 2018},
month = {Fri May 04 00:00:00 EDT 2018}
}
Web of Science
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