Double giant resonances in pion double charge exchange on 51V, 115In, and 197Au

Y. Grof, N. Auerbach, D. Benton, H. T. Fortune, K. Johnson, M. A. Kagarlis, G. Kahrimanis, S. Mordechai, C. L. Morris, J. M. O'Donnell, I. Orion, D. Saunders, D. A. Smith, H. Ward, C. Fred Moore

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Resonances were observed in the continuum in pion-induced double charge exchange (at Tπ=295 MeV) on 51V at Q=-14.0, -32.4, and -48.0 MeV, on 115In at Q=-25.0, -37.3, and -49.6 MeV, and on Au197 at Q=-35.0, -44.3, and -54.9 MeV. The three resonances have different characteristic angular distributions. Partial angular distributions were measured on 51V and 115In and observed to have =0+, 1-, and 2+ shapes, respectively. Based on their centroid energies, angular distributions, and observed cross sections, we identify the resonances as the double isobaric analog state, the giant dipole built on the isobaric analog, and the double giant dipole resonance. The new observations are in close agreement with the gross features reported recently for the double giant resonances, and provide some of the best signals obtained to date for the double resonance states in nuclei.

Original languageEnglish
Pages (from-to)1466-1473
Number of pages8
JournalPhysical Review C - Nuclear Physics
Volume47
Issue number4
DOIs
StatePublished - 1 Jan 1993

Fingerprint

Dive into the research topics of 'Double giant resonances in pion double charge exchange on <sup>51</sup>V, <sup>115</sup>In, and <sup>197</sup>Au'. Together they form a unique fingerprint.

Cite this