Radiative capture in few nucleon systems

Conference · Tue Jan 15 04:00:00 EST 1985 · AIP Conf. Proc.; (United States)

OSTI ID:5643154

Weller, H R

This talk will constitute an attempt to report recent low energy capture experiments which are providing new information on small components of the nuclear wavefunctions in the 2, 3 and 4 body nuclear systems. Recent polarized n-capture data on /sup 1/H which address the question of whether these data require meson exchange current effects will be presented. Several new results will be described in the case of the three body problem; new polarized proton capture data, analyzed with D-state effects included, yield new and lower E2 strengths which are in reasonable agreement with inverse reaction measurements and calculations. Polarized d-arrow-right on p and p-arrow-right on d data will be presented which exhibit the sensitivity of these measurements to the presence of s = 3/2 M1 strength just above threshold in /sup 3/He. And tensor analyzing power measurements of the /sup 1/H(d,..gamma..) /sup 3/He reaction which are sensitive to D-state effects in He will be described and compared to calculations which employ recent Faddeev generated wavefunctions. Finally, new data on the tensor analyzing powers for the /sup 2/H(d,..gamma..) /sup 4/He reaction which provide new information on the D-state of /sup 4/He will be described. A simple model calculation will be used to demonstrate that the observed isotropic T/sub 20/(theta) of -0.22 +- 0.014 is consistent with a 4.8% D-state admixture in the two deuteron wavefunction used to described /sup 4/He.

• Research Organization: Triangle Universities Nuclear Laboratory and Duke University, Durham, North Carolina 27706
• OSTI ID: 5643154
• Report Number(s): CONF-840906-
• Conference Information: Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 125:1
• Country of Publication: United States
• Language: English

Related Subjects

651220* -- Nuclear Properties & Reactions
A=1-5
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANALYZING POWER
BARYON REACTIONS
BEAMS
CAPTURE
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DEUTERIUM TARGET
DEUTERON REACTIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
FADDEEV EQUATIONS
GAMMA RADIATION
GAMMA SPECTRA
HADRON REACTIONS
HYDROGEN 1 TARGET
IONIZING RADIATIONS
MANY-BODY PROBLEM
NEUTRON REACTIONS
NUCLEAR REACTIONS
NUCLEON REACTIONS
POLARIZED BEAMS
PROTON REACTIONS
RADIATIONS
SPECTRA
TARGETS
THREE-BODY PROBLEM