Symmetry Energy for Collective Dipole Excitation

Publisher Website

11 October 1971

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 27 (15) , 1013-1016
https://doi.org/10.1103/physrevlett.27.1013

Abstract

Results from radiative proton capture in several nuclei near

A \approx 60

and

A \approx 90

show that the displacement energies of the

T + 1

and

T

isospin components of the collective electric dipole states are well described by a collective symmetry energy

U = \frac{T \tilde{V}}{A}

with a value of

\tilde{V} = 58 \pm 5

MeV. The specific cases of

{}^{49}{Sc}

and

{}^{64}{Zn}

are discussed.

Keywords

This publication has 10 references indexed in Scilit:

Energy Displacement of Dipole Isodoublets
Physical Review Letters, 1971
Isospin Splitting of the Giant Dipole Resonance inNi60
Physical Review C, 1971
Isospin Splitting of the Giant Dipole Resonance in ${}^{64}{Zn}$
Physical Review Letters, 1970
An improved high-energy gamma spectrometer
Nuclear Instruments and Methods, 1970
Isovector excitations in nuclei
Nuclear Physics A, 1970
Splitting of the giant resonance in 26Mg
Physics Letters B, 1970
A comparison between the cross-sections of the reactions35Cl(p, γ)36Ar and37Cl(p, γ)38Ar in the region of the giant dipole resonance
Lettere al Nuovo Cimento (1971-1985), 1970
Isospin splitting of E1 resonances in 88Sr and 90Zr
Physics Letters B, 1969
Photoproton Reactions Through Isobaric Analog States in ${}^{88}{Sr}$ and ${}^{90}{Zr}$
Physical Review Letters, 1969
Collective Treatment of the Giant Resonances in Spherical Nuclei
Physical Review B, 1967