Empirical mass formula with proton-neutron interaction
Abstract
An atomic mass formula consisting of a gross part, and averge even-odd part and an empirical shell part is studied. The gross part is, apart from a small atomic term, taken to be the sum of nucleon rest masses. Coulomb energies and a polynomial in A/sup 1/3/ and chemically bondN-Zchemically bond/A. The shell part includes, in addition to proton and neutron support of nuclear magicities and the cooperative deformation effect. After the first construction of such a formula, refinements have been made in two respects. One is a separate treatment of Z = N odd-odd nuclei suggested by a quartet model, and the other is an improvement of the proton neutron interaction term. By these refinements the root-mean-square deviation of calculated masses from the 1986 Audi-Wapstra masses has been reduced from 538 keV to 460 keV.
- Authors:
- Publication Date:
- Research Org.:
- Science and Engineering Research Laboratory, Waseda University, 3-4-1 Okubo, Shinjuku-ku, Tokyo 160, Japan
- OSTI Identifier:
- 5462321
- Report Number(s):
- CONF-870970-
Journal ID: CODEN: APCPC; TRN: 88-012628
- Resource Type:
- Conference
- Journal Name:
- AIP Conf. Proc.; (United States)
- Additional Journal Information:
- Journal Volume: 164:1; Conference: 5. international conference on nuclei far from stability, Lake Rosseau, Canada, 14 Sep 1987
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; NUCLEI; MASS; MASS FORMULAE; COULOMB ENERGY; EXPERIMENTAL DATA; PROTON-NEUTRON INTERACTIONS; SHELL MODELS; THEORETICAL DATA; BARYON-BARYON INTERACTIONS; DATA; ENERGY; HADRON-HADRON INTERACTIONS; INFORMATION; INTERACTIONS; MATHEMATICAL MODELS; NUCLEAR MODELS; NUCLEON-NUCLEON INTERACTIONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PROTON-NUCLEON INTERACTIONS; 653001* - Nuclear Theory- Nuclear Structure, Moments, Spin, & Models
Citation Formats
Tachibana, T, Uno, M, Yamada, S, and Yamada, M. Empirical mass formula with proton-neutron interaction. United States: N. p., 1987.
Web.
Tachibana, T, Uno, M, Yamada, S, & Yamada, M. Empirical mass formula with proton-neutron interaction. United States.
Tachibana, T, Uno, M, Yamada, S, and Yamada, M. 1987.
"Empirical mass formula with proton-neutron interaction". United States.
@article{osti_5462321,
title = {Empirical mass formula with proton-neutron interaction},
author = {Tachibana, T and Uno, M and Yamada, S and Yamada, M},
abstractNote = {An atomic mass formula consisting of a gross part, and averge even-odd part and an empirical shell part is studied. The gross part is, apart from a small atomic term, taken to be the sum of nucleon rest masses. Coulomb energies and a polynomial in A/sup 1/3/ and chemically bondN-Zchemically bond/A. The shell part includes, in addition to proton and neutron support of nuclear magicities and the cooperative deformation effect. After the first construction of such a formula, refinements have been made in two respects. One is a separate treatment of Z = N odd-odd nuclei suggested by a quartet model, and the other is an improvement of the proton neutron interaction term. By these refinements the root-mean-square deviation of calculated masses from the 1986 Audi-Wapstra masses has been reduced from 538 keV to 460 keV.},
doi = {},
url = {https://www.osti.gov/biblio/5462321},
journal = {AIP Conf. Proc.; (United States)},
number = ,
volume = 164:1,
place = {United States},
year = {Thu Dec 10 00:00:00 EST 1987},
month = {Thu Dec 10 00:00:00 EST 1987}
}