Coincidence reactions based on a three-body model of /sup 6/Li

Thesis/Dissertation · Tue Dec 31 23:00:00 EST 1985

OSTI ID:6694934

Christou, C T

This work involves the study of the ..cap alpha..-d and p-(N..cap alpha..) configurations of the ground state of /sup 6/Li, according to the Lehman-Rajan-Ghovanlou model. The ..cap alpha..-d momentum distribution, sensitive to the form of the S/sub 1/2/ interaction, may be extracted from the /sup 6/Li(e,e'd)..cap alpha.. reaction under conditions of deuteron pole-dominance. An analysis was carried out to determine the optimal kinematical conditions to ensure this. The p-(n..cap alpha..) momentum distribution was calculated as a function of p, the relative p-(n..cap alpha..) momentum, and E/sub kappa/, the relative energy of the n..cap alpha.. pair. The outstanding features are a strong peak at low p and small E/sub K/ due to the n..cap alpha.. pair scattering in the P/sub 3/2/ partial wave, and a secondary maximum at the origin due to interference between the final state plane-wave and S/sub 1/2/ interaction terms. The p-(N..cap alpha..) spectral function may be extracted from /sup 6/Li(p,2p)n..cap alpha.. and /sup 6/Li(e,e'p)n..cap alpha.. coincidence experiments under conditions of proton pole-dominance. The four fold differential cross section displays a prominent peak at small E/sub K/. Depending on the values of q, the peak originates from either the P/sub 3/2/n..cap alpha.. resonance or the interference of the plane-wave and S/sub 1/2/ terms. Integration over this peak yields the three-fold cross section, with a partial minimum at q = 0. Both cross sections are sensitive to the form of the S/sub 1/2/ interaction. The predictions were compared with data form (p,2p) and (e,e'p) experiments.

• Research Organization: George Washington Univ., Washington, DC (USA)
• OSTI ID: 6694934
• Country of Publication: United States
• Language: English

Related Subjects

653001* -- Nuclear Theory-- Nuclear Structure
Moments
Spin
& Models
653003 -- Nuclear Theory-- Nuclear Reactions & Scattering
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALKALI METAL ISOTOPES
BARYON REACTIONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIRECT REACTIONS
ELECTRON REACTIONS
ENERGY DEPENDENCE
HADRON REACTIONS
INFORMATION
ISOTOPES
KNOCK-OUT REACTIONS
LEPTON REACTIONS
LIGHT NUCLEI
LINEAR MOMENTUM
LITHIUM 6
LITHIUM 6 TARGET
LITHIUM ISOTOPES
NUCLEAR REACTIONS
NUCLEAR STRUCTURE
NUCLEI
NUCLEON REACTIONS
NUMERICAL DATA
ODD-ODD NUCLEI
PROTON REACTIONS
QUASI-FREE REACTIONS
STABLE ISOTOPES
TARGETS
THEORETICAL DATA