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The giant dipole resonance in very hot nuclei studied with the MEDEA detector

Abstract

The characteristics of the Giant Dipole Resonance in hot nuclei formed by incomplete fusion of {sup 36}Ar + {sup 90}Zr at 27 MeV/u were measured at GANIL with the MEDEA detector. This set-up allows the simultaneous measurement of {gamma} rays, light charged particles, and fusion residues. Preliminary results indicate that the giant dipole resonance shows up prominently in coincidence with the incomplete fusion residues which have a mean excitation energy of 550 MeV. By dividing the data into different momentum transfer bins, indications for the saturation with increasing excitation energy of the gamma multiplicity from Giant Dipole Resonance decay are obtained. (author) 27 refs.; 5 figs.; 2 tabs.
Authors:
Le Faou, J H; Suomijaervi, T; Blumenfeld, Y; [1]  Piattelli, P; Agodi, C; Alba, R; [2]  Alamanos, N; Auger, F; [3]  Chomaz, Ph; [4]  Gaardhoje, J J [5] 
  1. Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire
  2. Istituto Nazionale di Fisica Nucleare, Catania (Italy)
  3. CEA Centre d`Etudes de Saclay, 91 - Gif-sur-Yvette (France). Dept. d`Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l`Instrumentation Associee
  4. Grand Accelerateur National d`Ions Lourds (GANIL), 14 - Caen (France)
  5. Niels Bohr Inst., Copenhagen (Denmark); and others
Publication Date:
Dec 31, 1993
Product Type:
Conference
Report Number:
IPNO-DRE-93-07; CONF-9301126-
Reference Number:
SCA: 663300; 663450; PA: AIX-25:023944; EDB-94:059569; ERA-19:013704; NTS-94:017768; SN: 94001172638
Resource Relation:
Conference: International winter meeting on nuclear physics,Bormio (Italy),31 Jan 1993; Other Information: PBD: 1993
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; GIANT RESONANCE; DIPOLES; ARGON 36 REACTIONS; GAMMA RADIATION; GAMMA SPECTRA; INCOMPLETE FUSION REACTIONS; ZIRCONIUM 90 TARGET; 663300; 663450; NUCLEAR REACTIONS AND SCATTERING, GENERAL; HEAVY-ION-INDUCED REACTIONS AND SCATTERING
OSTI ID:
10137140
Research Organizations:
Paris-11 Univ., 91 - Orsay (France). Inst. de Physique Nucleaire
Country of Origin:
France
Language:
English
Other Identifying Numbers:
Other: ON: DE94618642; TRN: FR9400369023944
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
FRN
Size:
12 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Le Faou, J H, Suomijaervi, T, Blumenfeld, Y, Piattelli, P, Agodi, C, Alba, R, Alamanos, N, Auger, F, Chomaz, Ph, and Gaardhoje, J J. The giant dipole resonance in very hot nuclei studied with the MEDEA detector. France: N. p., 1993. Web.
Le Faou, J H, Suomijaervi, T, Blumenfeld, Y, Piattelli, P, Agodi, C, Alba, R, Alamanos, N, Auger, F, Chomaz, Ph, & Gaardhoje, J J. The giant dipole resonance in very hot nuclei studied with the MEDEA detector. France.
Le Faou, J H, Suomijaervi, T, Blumenfeld, Y, Piattelli, P, Agodi, C, Alba, R, Alamanos, N, Auger, F, Chomaz, Ph, and Gaardhoje, J J. 1993. "The giant dipole resonance in very hot nuclei studied with the MEDEA detector." France.
@misc{etde_10137140,
title = {The giant dipole resonance in very hot nuclei studied with the MEDEA detector}
author = {Le Faou, J H, Suomijaervi, T, Blumenfeld, Y, Piattelli, P, Agodi, C, Alba, R, Alamanos, N, Auger, F, Chomaz, Ph, and Gaardhoje, J J}
abstractNote = {The characteristics of the Giant Dipole Resonance in hot nuclei formed by incomplete fusion of {sup 36}Ar + {sup 90}Zr at 27 MeV/u were measured at GANIL with the MEDEA detector. This set-up allows the simultaneous measurement of {gamma} rays, light charged particles, and fusion residues. Preliminary results indicate that the giant dipole resonance shows up prominently in coincidence with the incomplete fusion residues which have a mean excitation energy of 550 MeV. By dividing the data into different momentum transfer bins, indications for the saturation with increasing excitation energy of the gamma multiplicity from Giant Dipole Resonance decay are obtained. (author) 27 refs.; 5 figs.; 2 tabs.}
place = {France}
year = {1993}
month = {Dec}
}