Meson-exchange currents and superscaling analysis with relativistic effective mass of quasielastic electron scattering from C12

Autor:	J. E. Amaro, V. L. Martinez-Consentino, I. Ruiz Simo
Rok vydání:	2021
Předmět:	Nuclear physics Physics Effective mass (solid-state physics) Meson Mean field theory Nuclear Theory Scalar (mathematics) Nuclear Experiment Nuclear matter Nucleon Scaling Electron scattering
Zdroj:	Physical Review C. 104
ISSN:	2469-9993 2469-9985
DOI:	10.1103/physrevc.104.025501
Popis:	We reanalyze the scaling properties of inclusive quasielastic electron scattering from $^{12}\mathrm{C}$ by subtracting from the data the effects of two-particle emission. A model of relativistic meson-exchange currents (MEC) is employed within the mean field theory of nuclear matter, with scalar and vector potentials that induce an effective mass and a vector energy to the nucleons. A new phenomenological quasielastic scaling function is extracted from a selection of the data after the subtraction of the 2p-2h contribution. The resulting superscaling approach with relativistic effective mass (SuSAM*) can be used to compute the genuine quasielastic cross section without contamination of the 2p-2h channel that can then be added separately to obtain the total quasielastic plus two-nucleon emission response.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5a89a172c2ecdbae4ce3344feb1676e0 https://doi.org/10.1103/physrevc.104.025501 Zobrazit plný text záznamu