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Title: Scattering of 28.1 Mev Deuterons by Hydrogen, Lithium, Carbon and Aluminum. Report No. 54; DISPERSION DE DEUTERONES DE 28,1 Mev POR HIDROGENO, LITIO, CARBONO Y ALUMINIO. INFORME NO. 54

Technical Report ·
OSTI ID:4833513

Natural lithium, polyethylene, and aluminum targets were bombarded with 28.1 Mev deuterons. The outgoing particles were analyzed with a scintillation spectrometer. The angular distributions for the following processes were measured: Li(d,d')Li, Li/sup 7/(d,d')Li/sup 7*/ -4.61 Mev, Li/sup 7/(d,t) Li/su p 6/, Cr/sup 12/(d,d')C/sup 12/, C/sup 12/(d,d')C/sup 12*/-4.43 Mev, C/sup 12/ (d,p)C/s up 13*/-3.68 Mev, Alsup 27/(d,d')Al/sup 27/, Alsup 27/(d,d')Al/sup 27*/- 2.21 Mev, and H/sup 1/(d,p)H/sup 2/. The angular distributions of the inelastic processes are due predominantly to direct nuclear interaction; there is no significant compound nucleus contribution. The Li/sup 7/(d,d')Li/sup 7*/-4.61 Mev angular distribution can be adjusted by superimposing direct reaction curves correspondingto l =0, a =3.4f and l =2, a =3.9f, where a is the interaction radius and l the angular momentum change; this leads to an odd parity assignement for the level. The ith a "pick-up" curve corresponding to l = 1 and a = 5f. The reaction C/sup 12/(d,d')C/sup 12*/ Mev is adjusted by superimposing the curves of l = 1, a= 4.1f and l =2, a = 4.6f. The C/sup 12/(d,p)C/sup 13*/ - 3.68 M ev angular distribution is well adjusted by superimposing the curves of l = 1, a - 3.9f, consistently with the known spin and parity change, instead the one belonging to the reaction and l = 3 with a = 3.5f. The Al/sup 27/(d,d')Al/ sup 27*/-2.21 Mev angular distribution is adequately adjusted with a curve of l = 1, a = 5.1f; therefore it follows an odd parity assignent for the level. The possible spin assignments of the levels are discussed. The angular distribution of the inraction H/sup 1/(d,p)H/sup 2/ is consistent with the measurements performed at neighboring energies and agrees with the curve obtained with a Serber type force. The elastic scattering angular distributions show the usual diffraction pattern and interaction radii for the deuteron-nucleus system ere calculated using an optical analogy. The inelastic scattering curves yield some evidence of a total spin flip of the deuteron in the reaction. (auth)

Research Organization:
Argentina. Comision Nacional de Energia Atomica, Buenos Aires
NSA Number:
NSA-16-002487
OSTI ID:
4833513
Report Number(s):
NP-10974
Resource Relation:
Other Information: Orig. Receipt Date: 31-DEC-62
Country of Publication:
Country unknown/Code not available
Language:
English

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Related Subjects

PHYSICS
ALUMINUM 27
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BINDING ENERGY
CARBON 12
CARBON 13
COMPOUND NUCLEI
DEUTERIUM
DEUTERON BEAMS
DIAGRAMS
DIFFRACTION
DIRECT REACTIONS
ENERGY
ENERGY LEVELS
ENERGY RANGE
EXCITATION
HYDROGEN
HYDROGEN 1
HYDROGEN 2
INTERACTIONS
LITHIUM 6
LITHIUM 7
MEASURED VALUES
MOMENTUM
NUCLEAR REACTIONS
NUCLEI
NUMERICALS
PARITY
POLYETHYLENES
PROTONS
SCATTERING
SCINTILLATION COUNTERS
SPECTROMETERS
SPIN
TARGETS
VARIATIONS