IsovectorM1 transitions inSi28and the role of meson exchange currents

Autor:	F. Neumeyer, C. Lüttge, Chary Rangacharyulu, P. von Neumann-Cosel, B. A. Brown, Achim Richter, S. K. Matthews, D. I. Sober, E. Spamer, G. Schrieder
Rok vydání:	1996
Předmět:	Physics Nuclear physics Nuclear and High Energy Physics Meson Isovector Degree (graph theory) Landé g-factor Order (ring theory) Isotopes of silicon Electron scattering Energy (signal processing)
Zdroj:	Physical Review C. 53:127-130
ISSN:	1089-490X 0556-2813
Popis:	At the newly installed 180{degree} Darmstadt electron scattering facility we have measured the isovector {ital M}1 transition strengths in {sup 28}Si in the excitation energy range from 10 to 18 MeV. Overall agreement with a shell-model calculation using the unified {ital sd}-shell interaction and effective {ital g} factors is obtained. Comparison with Gamow-Teller strength deduced from ({ital p},{ital n}) data reveals the presence of meson exchange current contributions of the order of 25{percent} to the summed {ital M}1 transition strength. {copyright} {ital 1996 The American Physical Society.}
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::72b530850e228a3229b01af60ee60e4a https://doi.org/10.1103/physrevc.53.127 Zobrazit plný text záznamu