Proton emission cross sections of silicon isotopes

Journal Article · Mon Oct 01 04:00:00 EDT 1990 · Physical Review, C (Nuclear Physics); (USA)

DOI:https://doi.org/10.1103/PhysRevC.42.1559· OSTI ID:6058407

Dias, J F; Martins, M N; Wolynec, E ^[1]

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1. Laboratorio do Acelerador Linear, Instituto de Fisica da Universidade de Sao Paulo, Sao Paulo (Brazil)

Measurements of the electrodisintegration cross sections, ({ital e},{ital p}) and ({ital e},2{ital p}), and their corresponding electrodisintegration-plus-photodisintegration yields for {sup 29}Si and {sup 30}Si are presented. The experiment covers the range from 20 to 60 MeV electron incident energies. The experimental results were analyzed using {ital E}1 and {ital E}2 distorted-wave Born approximation virtual photon spectra for a finite nucleus in order to obtain the corresponding photodisintegration cross sections for both channels and isotopes. For {sup 29}Si the integrated ({gamma},{ital p}) cross sections is 47% bigger than ({gamma},{ital n}) while for {sup 30}Si they are of the same order of magnitude. For both isotopes the ({gamma},{ital p}) decay channel is dominantly {ital E}1. The ({gamma},2{ital p}) channel is much smaller than the ({gamma},2{ital n}) channel but the {ital E}2 contribution to this decay mode is of the same magnitude of the {ital E}1.

• OSTI ID: 6058407
• Journal Information: Physical Review, C (Nuclear Physics); (USA), Journal Name: Physical Review, C (Nuclear Physics); (USA) Vol. 42:4; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

651420* -- Nuclear Properties & Reactions
A=20-38
Experimental
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
BARYONS
BORN APPROXIMATION
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DISSOCIATION
DWBA
ELECTRON REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAMMA SPECTROSCOPY
GE SEMICONDUCTOR DETECTORS
GIANT RESONANCE
HADRONS
HALF-LIFE
LEPTON REACTIONS
MEASURING INSTRUMENTS
MEV RANGE
MEV RANGE 10-100
NUCLEAR REACTIONS
NUCLEONS
PROTONS
RADIATION DETECTORS
RESONANCE
SEMICONDUCTOR DETECTORS
SILICON 29 TARGET
SILICON 30 TARGET
SPECTROSCOPY
TARGETS