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Entrance channel effects and the superdeformed band in {sup 152}Dy

Abstract

Recent experiments on {sup 152}Dy indicate that the fraction of decays via the superdeformed (SD) band depends on the mass asymmetry in the entrance channel. Such results may indicate that the time scale for fusion is larger for mass symmetric reactions than for mass asymmetric ones, thus allowing neutron evaporation to compete better with fusion. To test this idea, one needs accurate intensity measurements of the highest member of the SD band, using a very large data set, so it is an ideal experiment for the Eurogam array. At the time of the conference, a series of experiments was being carried out using the {sup 36}S + {sup 120}Sn and {sup 82}Se + {sup 74}Ge reactions. Preliminary results were inconclusive. 7 refs., 3 figs.
Authors:
Beausang, C W; Alderson, A; Ali, I; Dagnall, P J; Fallon, P; Forsyth, P D; Smith, G; Twin, P J; [1]  France, G de; Duchene, G; Flibotte, S; Haas, B; Romain, P; Theisen, C H; Vivien, J P; [2]  Bentley, M A [3] 
  1. Liverpool Univ. (United Kingdom)
  2. Strasbourg-1 Univ., 67 (France). Centre de Recherches Nucleaires
  3. Daresbury Lab. (United Kingdom)
Publication Date:
Aug 01, 1992
Product Type:
Conference
Report Number:
AECL-10613(v.2); CONF-920548-; CONF-9205444-
Reference Number:
SCA: 663110; 663570; PA: AIX-28:057799; EDB-97:122561; SN: 97001841922
Resource Relation:
Conference: Workshop on large gamma-ray detector arrays, Ottawa (Canada); Chalk River (Canada), 18-23 May 1992; 19-23 May 1992; Other Information: PBD: Aug 1992; Related Information: Is Part Of Proceedings of the international conference on nuclear structure at high angular momentum and the workshop on large gamma-ray detector arrays; PB: 500 p.
Subject:
66 PHYSICS; DYSPROSIUM 152; SUPERDEFORMED NUCLEI; ENERGY-LEVEL TRANSITIONS; COINCIDENCE METHODS; GAMMA SPECTRA; GAMMA SPECTROSCOPY; GERMANIUM 74 TARGET; HEAVY ION FUSION REACTIONS; HIGH SPIN STATES; NUCLEAR DEFORMATION; NUCLEAR STRUCTURE; SELENIUM 82 REACTIONS; SULFUR 36 REACTIONS; TIN 120 TARGET; YRAST STATES
OSTI ID:
520560
Research Organizations:
Atomic Energy of Canada Ltd., Chalk River, ON (Canada). Chalk River Nuclear Labs.
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE97638960; TRN: CA9700459057799
Availability:
INIS; OSTI as DE97638960
Submitting Site:
INIS
Size:
pp. 54-58
Announcement Date:
Sep 23, 1997

Citation Formats

Beausang, C W, Alderson, A, Ali, I, Dagnall, P J, Fallon, P, Forsyth, P D, Smith, G, Twin, P J, France, G de, Duchene, G, Flibotte, S, Haas, B, Romain, P, Theisen, C H, Vivien, J P, and Bentley, M A. Entrance channel effects and the superdeformed band in {sup 152}Dy. Canada: N. p., 1992. Web.
Beausang, C W, Alderson, A, Ali, I, Dagnall, P J, Fallon, P, Forsyth, P D, Smith, G, Twin, P J, France, G de, Duchene, G, Flibotte, S, Haas, B, Romain, P, Theisen, C H, Vivien, J P, & Bentley, M A. Entrance channel effects and the superdeformed band in {sup 152}Dy. Canada.
Beausang, C W, Alderson, A, Ali, I, Dagnall, P J, Fallon, P, Forsyth, P D, Smith, G, Twin, P J, France, G de, Duchene, G, Flibotte, S, Haas, B, Romain, P, Theisen, C H, Vivien, J P, and Bentley, M A. 1992. "Entrance channel effects and the superdeformed band in {sup 152}Dy." Canada.
@misc{etde_520560,
title = {Entrance channel effects and the superdeformed band in {sup 152}Dy}
author = {Beausang, C W, Alderson, A, Ali, I, Dagnall, P J, Fallon, P, Forsyth, P D, Smith, G, Twin, P J, France, G de, Duchene, G, Flibotte, S, Haas, B, Romain, P, Theisen, C H, Vivien, J P, and Bentley, M A}
abstractNote = {Recent experiments on {sup 152}Dy indicate that the fraction of decays via the superdeformed (SD) band depends on the mass asymmetry in the entrance channel. Such results may indicate that the time scale for fusion is larger for mass symmetric reactions than for mass asymmetric ones, thus allowing neutron evaporation to compete better with fusion. To test this idea, one needs accurate intensity measurements of the highest member of the SD band, using a very large data set, so it is an ideal experiment for the Eurogam array. At the time of the conference, a series of experiments was being carried out using the {sup 36}S + {sup 120}Sn and {sup 82}Se + {sup 74}Ge reactions. Preliminary results were inconclusive. 7 refs., 3 figs.}
place = {Canada}
year = {1992}
month = {Aug}
}