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Neutron enrichment at midrapidity in {sup 58}Ni + {sup 58}Ni at 52 MeV/u

Abstract

By combining data from a charged particle {sup 58}Ni + {sup 58}Ni experiment at 52 MeV/u with an {sup 36}Ar + {sup 58}Ni experiment at 50 MeV/u for which free neutrons have been detected, an increase in the neutron to proton ratio of the whole nuclear material at midrapidity has been experimentally observed in the reaction {sup 58}Ni + {sup 58}Ni at 52 MeV/u. The neutron to proton ratio is measured above the initial neutron to proton ratio of the system. Neutron to proton ratio of the quasi-projectile emission is analysed for the same reactions and is seen to decrease below the ratio of the initial system. (authors)
Authors:
Theriault, D; Vallee, A; Gingras, L; Larochelle, Y; Roy, R; April, A; Beaulieu, L; Grenier, F; Lemieux, F; Moisan, J; Samri, M; Saint-Pierre, C; Turbide, S; [1]  Yennello, S J; Martin, E; Winchester, E [2] 
  1. Laval Univ., Lab. de Physique Nucleaire, Dept. de Physique, Quebec City, PQ (Canada)
  2. Texas A and M Univ., College Station, TX (United States). Cyclotron Inst.
Publication Date:
Jul 01, 2003
Product Type:
Conference
Report Number:
INIS-FR-3179
Resource Relation:
Conference: IWM2003 International Workshop on Multifragmentation and Related Topics, Caen (France), 5-7 Nov 2003; Other Information: 31 refs; PBD: 2003
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ARGON 36 REACTIONS; CHARGE DISTRIBUTION; DIFFERENTIAL CROSS SECTIONS; GEV RANGE 01-10; MULTIPLE PRODUCTION; NICKEL 58 REACTIONS; NICKEL 58 TARGET; NUCLEAR FRAGMENTATION; NUCLEAR FRAGMENTS
OSTI ID:
20574535
Research Organizations:
Grand Accelerateur National d'Ions Lourds (GANIL), 14 - Caen (France); Laboratori Nazionali del Sud and Sezione di Catania (Italy)
Country of Origin:
France
Language:
English
Other Identifying Numbers:
TRN: FR0404211026489
Availability:
Available from INIS in electronic form
Submitting Site:
FRN
Size:
5 pages
Announcement Date:
Apr 17, 2005

Citation Formats

Theriault, D, Vallee, A, Gingras, L, Larochelle, Y, Roy, R, April, A, Beaulieu, L, Grenier, F, Lemieux, F, Moisan, J, Samri, M, Saint-Pierre, C, Turbide, S, Yennello, S J, Martin, E, and Winchester, E. Neutron enrichment at midrapidity in {sup 58}Ni + {sup 58}Ni at 52 MeV/u. France: N. p., 2003. Web.
Theriault, D, Vallee, A, Gingras, L, Larochelle, Y, Roy, R, April, A, Beaulieu, L, Grenier, F, Lemieux, F, Moisan, J, Samri, M, Saint-Pierre, C, Turbide, S, Yennello, S J, Martin, E, & Winchester, E. Neutron enrichment at midrapidity in {sup 58}Ni + {sup 58}Ni at 52 MeV/u. France.
Theriault, D, Vallee, A, Gingras, L, Larochelle, Y, Roy, R, April, A, Beaulieu, L, Grenier, F, Lemieux, F, Moisan, J, Samri, M, Saint-Pierre, C, Turbide, S, Yennello, S J, Martin, E, and Winchester, E. 2003. "Neutron enrichment at midrapidity in {sup 58}Ni + {sup 58}Ni at 52 MeV/u." France.
@misc{etde_20574535,
title = {Neutron enrichment at midrapidity in {sup 58}Ni + {sup 58}Ni at 52 MeV/u}
author = {Theriault, D, Vallee, A, Gingras, L, Larochelle, Y, Roy, R, April, A, Beaulieu, L, Grenier, F, Lemieux, F, Moisan, J, Samri, M, Saint-Pierre, C, Turbide, S, Yennello, S J, Martin, E, and Winchester, E}
abstractNote = {By combining data from a charged particle {sup 58}Ni + {sup 58}Ni experiment at 52 MeV/u with an {sup 36}Ar + {sup 58}Ni experiment at 50 MeV/u for which free neutrons have been detected, an increase in the neutron to proton ratio of the whole nuclear material at midrapidity has been experimentally observed in the reaction {sup 58}Ni + {sup 58}Ni at 52 MeV/u. The neutron to proton ratio is measured above the initial neutron to proton ratio of the system. Neutron to proton ratio of the quasi-projectile emission is analysed for the same reactions and is seen to decrease below the ratio of the initial system. (authors)}
place = {France}
year = {2003}
month = {Jul}
}