LOW-LYING ENERGY STATES IN Ne$sup 20$ FROM THE F$sup 19$(d,n)Ne$sup 20$ REACTION

Journal Article · Mon May 01 04:00:00 EDT 1961 · Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D

DOI:https://doi.org/10.1103/PhysRev.122.874· OSTI ID:4021025

Benenson, R E; Chen, H Y; Lidofsky, L J

Six neutron groups from the F>s1/sup >(/n)Ne>s2/sup > /action corresponding to the lowest states in Ne>s2/sup > /re observed at six angles of observation. The major part of the experiment employed nuclear emulsions and an average deuteron energy of 3.57 Mev. The importance of stripping appears to depend on the particular level involved; in particular, angular distributions leading to unambiguous assignments by stripping theory appear only for the ground, 1.63-Mev, and 6.75-Mev levels. The ground-state assignment appears to be energy dependent when the present l/sub p/ = 2 value is compared to the l/sub p/ = 0 value previously reported for a higher bombarding energy. The 4.25-Mev level in Ne>s2/sup > /ves rise to an angular distribution which could be either l/sub p/ = 2 or l/sub p/ = 3, but the fit to theory is not satisfactory for either case. A qualitative argument is given favoring the latter value. No assignment can be made to the 4.97- and 5.63Mev levels. A brief second experiment with a fast neutron spectrometer was performed in order to obtain an absolute differential cross section at 0 deg for Ne>s2/sup > /ft in its 6.75-Mev level. The reduced width obtained from this cross section is compared with a published reduced width for this same level obtained by elastic scattering of alpha particles by O>s1/sup >./auth)

• Research Organization: Columbia Univ., New York
• NSA Number: NSA-15-017601
• OSTI ID: 4021025
• Journal Information: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D, Journal Name: Physical Review (U.S.) Superseded in part by Phys. Rev. A, Phys. Rev. B: Solid State, Phys. Rev. C, and Phys. Rev. D Vol. Vol: 122; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ALPHA PARTICLES
ANGULAR DISTRIBUTION
ANGULAR MOMENTUM
CROSS SECTIONS
DEUTERONS
ENERGY LEVELS
ENERGY RANGE
EXCITATION
FLUORINE 19
MEASURED VALUES
MOMENTUM
NEON 20
NEUTRON DETECTION
NEUTRON SPECTROMETERS
NEUTRONS
NUCLEAR EMULSIONS
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEAR THEORY
NUCLEONS
OXYGEN 16
PARTICLE TRACKS
PHYSICS
SCATTERING
STRIPPING