Momentum distributions of sup 9 Li fragments following the breakup of sup 11 Li

Journal Article · Mon Oct 05 04:00:00 EDT 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.69.2050· OSTI ID:7156675

Orr, N A; Anantaraman, N; Austin, S M; Bertulani, C A; Hanold, K; Kelley, J H; Morrissey, D J; Sherrill, B M; Souliotis, G A; Thoennessen, M; Winfield, J S; Winger, J A ^[1]

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1. National Superconducting Cyclotron Laboratory; Michigan State University; East Lansing; Michigan 48824 (United States) Department of Physics and Astronomy National Superconducting Cyclotron Laboratory; Michigan State University; East Lansing; Michigan; 48824 (United States) Department of Chemistry and National Superconducting Cyclotron Laboratory; Michigan State University; East Lansing; Michigan 48824 (United States) Nuclear Science Division; Lawrence Berkeley Laboratory; Berkeley; California 94720 (United States)

A new method, use of a fragment separator as an energy-loss spectrometer, has been developed and used to make the first measurements of the parallel momentum distributions of {sup 9}Li nuclei produced in the breakup of {sup 11}Li. Measurements were made for 66-MeV/nucleon {sup 11}Li projectiles on {sup 9}Be, {sup 93}Nb, and {sup 181}Ta targets. Distributions with Gaussian width of {sigma}{sub {parallel}}{approx}19 MeV/{ital c} were observed for all targets---the first time such a narrow structure has been observed for medium and high mass targets. From the weak dependence of width on breakup target it appears that the paralell momentum distributions are relatively insensitive to the interaction governing the breakup and reflect an extended neutron distribution for {sup 11}Li.

• OSTI ID: 7156675
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 69:14; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

663520* -- Nuclear Mass Ranges-- A=6-19-- (1992-)
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BERYLLIUM 9 TARGET
BREAKUP REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ENERGY RANGE
EXPERIMENTAL DATA
HEAVY ION REACTIONS
INFORMATION
LITHIUM 11 REACTIONS
MEV RANGE
MEV RANGE 100-1000
MONTE CARLO METHOD
NIOBIUM 93 TARGET
NUCLEAR REACTIONS
NUMERICAL DATA
TANTALUM 181 TARGET
TARGETS