This article is cited in 20 papers

REVIEWS OF TOPICAL PROBLEMS

Δ isobar in nuclei (review of experimental data)

K. N. Mukhin, O. O. Patarakin

Institute of General and Nuclear Physics, Russian Research Centre "Kurchatov Institute", Moscow

Abstract: Experimental and elementary theoretical work relevant to the electromagnetic and hadron excitation of the Δ isobar in nuclei is reviewed. The historical development of the notion of non-nucleon degrees of freedom, from the quasinucleon and the pion to quarks and gluons, is described, and the role of Δ excitations is discussed. Gamma, electron, proton, pion, and ion beam methodologies and detector and target designs are discussed. Preliminary suggestions about γ, e, p, π excitation mechanisms are made. Problem areas that need more research are highlighted, and trends for the future and prospective experiments are discussed.

PACS: 25.10.s, 24.30.Gd, 29.90.r

Received: July 1, 1995

DOI: 10.3367/UFNr.0165.199508a.0841

 English version: Physics–Uspekhi, 1995, 38:8, 803–844

Bibliographic databases:

•