180 degree electron scattering from sup 14 C

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Physical Review (Section) C: Nuclear Physics; (USA)

DOI:https://doi.org/10.1103/PhysRevC.40.1861· OSTI ID:5015871

Plum, M A; Lindgren, R A; Dubach, J; Hicks, R S; Huffman, R L; Parker, B; Peterson, G A ^[1]; Alster, J; Lichtenstadt, J; Moinester, M A ^[2]; Baer, H ^[3]

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1. University of Massachusetts at Amherst, Amherst, Massachusetts 01003 (USA)
2. School of Physics and Astronomy, Raymond and Beverly Sackler Faculty of Exact Science, Tel Aviv University, Tel Aviv, Israel 69778 (IL)
3. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (USA)

Inelastic electron scattering cross sections for {sup 14}C have been measured at a scattering angle of 180{degree}, with incident beam energies ranging from 81.9 to 268.9 MeV. Transverse form factors were measured for transitions to low-lying natural-parity states, to unnatural-parity stretched'' {ital J}{sup {pi}}=4{sup {minus}} states, and to the {ital J}{sup {pi}}=2{sup {minus}} analog to the {sup 14}B ground state. Cross sections for 4{sup {minus}} states at 11.7 and 17.3 MeV are combined with pion scattering data to determine the isoscalar and isovector transition amplitudes. Form factors for other states are compared to shell-model calculations. From the excitation energy of the newly discovered {ital J}{sup {pi}}T=2{sup {minus}}2 state at 22.1 MeV, the {sup 14}C-{sup 14}B Coulomb energy difference is determined to be 2.25{plus minus}0.10 MeV.

• OSTI ID: 5015871
• Journal Information: Physical Review (Section) C: Nuclear Physics; (USA), Journal Name: Physical Review (Section) C: Nuclear Physics; (USA) Vol. 40:5; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BORON 14
BORON ISOTOPES
CARBON 14
CARBON 14 TARGET
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CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DISTRIBUTION
ELECTRON REACTIONS
ENERGY LEVELS
ENERGY RANGE
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
EXPERIMENTAL DATA
FORM FACTORS
INELASTIC SCATTERING
INFORMATION
ISOTOPES
LEPTON REACTIONS
LIGHT NUCLEI
M4-TRANSITIONS
MATHEMATICAL MODELS
MEV RANGE
MEV RANGE 10-100
MEV RANGE 100-1000
MULTIPOLE TRANSITIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
NUMERICAL DATA
ODD-ODD NUCLEI
PARITY
PARTICLE PROPERTIES
RADIOISOTOPES
SCATTERING
SHELL MODELS
SPIN
TARGETS
YEARS LIVING RADIOISOTOPES