COULOMB ENERGY OF He$sup 3$ AND CHARGE DISTRIBUTION OF NUCLEON

Journal Article · Mon Oct 15 04:00:00 EDT 1962 · Physical Review (U.S.) Superseded in part by Phys.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.128.729· OSTI ID:4779453

Ohmura, H; Ohmura, T

The effect of finite nucleon size on the Coulomb energy of He/sup 3 has been investigated. The experimental value of the difference between the binding energies of H/sup 3/ and He/sup 3/ is 0.764 Mev, while the calculated Coulomb energy is approximately equal to or greater than 1.0 Mev if the nuclear force has no repulsive core. It is shown that, if the finite size of the nucleon is taken into consideration, the Coulomb energy oi He/sup 3/ is reduced by about 15-20%. The effect of finite change distribution is determined mainly by the mean square radius. If there is a hard core (with radius D), the calculated Coulomb energy (assuming point nucleons) is already smaller, with the values 0.8--0.9 Mev for D = 0 2 x 10/sup -13/ cm, approximates 0.7 Mev for D = 0.6 x 10/sup -13/ cm. The reduction of Coulomb energy due to the finite size is about 8% and 3%, respectively, for two different models. The Coulomb potential between extended unpolarized nucleons is given in closed form for exponential and Yukawa charge distributions. (auth)

• Research Organization: Washington Univ., St. Louis
• NSA Number: NSA-17-000829
• OSTI ID: 4779453
• Journal Information: Physical Review (U.S.) Superseded in part by Phys.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 D, Journal Name: Physical Review (U.S.) Superseded in part by Phys.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: 128; ISSN PHRVA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BINDING ENERGY
DISTRIBUTION
ELECTRIC CHARGES
HELIUM 3
NUCLEAR MODELS
NUCLEONS
PHYSICS