skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Very-high energy (E. -->. E/sub beam/) light particle production near O/sup 0/ in heavy-ion collisions, E/A less than or equal to 40 MeV/u

Abstract

Studies of heavy-ion collisions at E/A approx. 10 MeV/u to 20 MeV/u with the production of nucleons and other particles at forward angles with velocities several times that of the projectile have been observed by many groups (TAM, ORNL, MSU, HMI). This is usually attributed to projectile fragmentation with Fermi motion of the light particle which is often described by a source temperature T/sub s/, accounting for the additional velocity component. However, experiments reported by Borcea et al. and those done at the Hahn-Meitner Institute (VIKSI) have suggested that high-energy alpha particles observed near theta = O/sup 0/ in /sup 20/Ne-induced collisions, E/A less than or equal to 20 MeV/u, may arise from mechanisms such as cluster transfer reactions. Here we report observation of a similar phenomenon with a variety of projectiles (Z greater than or equal to 8), E/A = 9 to 40 MeV/u.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Michigan Univ., Ann Arbor (USA). Dept. of Physics; Michigan Univ., Dearborn (USA). Dept. of Natural Sciences; Argonne National Lab., IL (USA)
OSTI Identifier:
6965956
Report Number(s):
CONF-880260-10
ON: DE88011985
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: 5. winter workshop on nuclear dynamics, Sun Valley, ID, USA, 22 Feb 1988; Other Information: Portions are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA PARTICLES; NUCLEAR REACTION YIELD; PROTONS; TANTALUM 181 TARGET; ARGON 40 REACTIONS; NICKEL 58 REACTIONS; OXYGEN 16 REACTIONS; SULFUR 32 REACTIONS; EXPERIMENTAL DATA; FRAGMENTATION; GEV RANGE 01-10; HEAVY ION REACTIONS; MEV RANGE 100-1000; BARYONS; CHARGED PARTICLES; CHARGED-PARTICLE REACTIONS; DATA; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; INFORMATION; MEV RANGE; NUCLEAR REACTIONS; NUCLEONS; NUMERICAL DATA; TARGETS; YIELDS; 651820* - Nuclear Properties & Reactions, A=150-189, Experimental

Citation Formats

Shaheen, S., Becchetti, F.D., Roberts, D., Jaenecke, J., Schulman, P., Stern, R., Nadasen, A., and Kovar, D. Very-high energy (E. -->. E/sub beam/) light particle production near O/sup 0/ in heavy-ion collisions, E/A less than or equal to 40 MeV/u. United States: N. p., 1988. Web.
Shaheen, S., Becchetti, F.D., Roberts, D., Jaenecke, J., Schulman, P., Stern, R., Nadasen, A., & Kovar, D. Very-high energy (E. -->. E/sub beam/) light particle production near O/sup 0/ in heavy-ion collisions, E/A less than or equal to 40 MeV/u. United States.
Shaheen, S., Becchetti, F.D., Roberts, D., Jaenecke, J., Schulman, P., Stern, R., Nadasen, A., and Kovar, D. Mon . "Very-high energy (E. -->. E/sub beam/) light particle production near O/sup 0/ in heavy-ion collisions, E/A less than or equal to 40 MeV/u". United States. https://www.osti.gov/servlets/purl/6965956.
@article{osti_6965956,
title = {Very-high energy (E. -->. E/sub beam/) light particle production near O/sup 0/ in heavy-ion collisions, E/A less than or equal to 40 MeV/u},
author = {Shaheen, S. and Becchetti, F.D. and Roberts, D. and Jaenecke, J. and Schulman, P. and Stern, R. and Nadasen, A. and Kovar, D.},
abstractNote = {Studies of heavy-ion collisions at E/A approx. 10 MeV/u to 20 MeV/u with the production of nucleons and other particles at forward angles with velocities several times that of the projectile have been observed by many groups (TAM, ORNL, MSU, HMI). This is usually attributed to projectile fragmentation with Fermi motion of the light particle which is often described by a source temperature T/sub s/, accounting for the additional velocity component. However, experiments reported by Borcea et al. and those done at the Hahn-Meitner Institute (VIKSI) have suggested that high-energy alpha particles observed near theta = O/sup 0/ in /sup 20/Ne-induced collisions, E/A less than or equal to 20 MeV/u, may arise from mechanisms such as cluster transfer reactions. Here we report observation of a similar phenomenon with a variety of projectiles (Z greater than or equal to 8), E/A = 9 to 40 MeV/u.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1988},
month = {2}
}

Conference:
Other availability
Please see Document Availability for additional information on obtaining the full-text document. Library patrons may search WorldCat to identify libraries that hold this conference proceeding.

Save / Share: