### Abstract

A nuclidic mass formula composed of a gross term, an even-odd term and a shell term is presented as a revised version of the mass formula constructed by the present authors and published in 2000. The gross term has almost the same functional form as in the previous formula, but the parameter values in it are somewhat different. The even-odd term is treated more carefully, and a considerable improvement is realized. The shell term is exactly the same as the previous one; it was obtained using spherical single-particle potentials and by treating the deformed nucleus as a superposition of spherical nuclei. The new mass formula is applicable to nuclei with Z ≥ 2 and N ≥ 2. The root-mean-square deviation from experimental masses is 666.7 keV, which is less than that of the previous mass formula, 689.8 keV.

Original language | English |
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Pages (from-to) | 305-325 |

Number of pages | 21 |

Journal | Progress of Theoretical Physics |

Volume | 113 |

Issue number | 2 |

DOIs | |

Publication status | Published - 2005 Feb |

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### ASJC Scopus subject areas

- Physics and Astronomy(all)

### Cite this

*Progress of Theoretical Physics*,

*113*(2), 305-325. https://doi.org/10.1143/PTP.113.305

**Nuclidic mass formula on a spherical basis with an improved even-odd term.** / Koura, Hiroyuki; Tachibana, Takahiro; Uno, Masahiro; Yamada, Masami.

Research output: Contribution to journal › Article

*Progress of Theoretical Physics*, vol. 113, no. 2, pp. 305-325. https://doi.org/10.1143/PTP.113.305

}

TY - JOUR

T1 - Nuclidic mass formula on a spherical basis with an improved even-odd term

AU - Koura, Hiroyuki

AU - Tachibana, Takahiro

AU - Uno, Masahiro

AU - Yamada, Masami

PY - 2005/2

Y1 - 2005/2

N2 - A nuclidic mass formula composed of a gross term, an even-odd term and a shell term is presented as a revised version of the mass formula constructed by the present authors and published in 2000. The gross term has almost the same functional form as in the previous formula, but the parameter values in it are somewhat different. The even-odd term is treated more carefully, and a considerable improvement is realized. The shell term is exactly the same as the previous one; it was obtained using spherical single-particle potentials and by treating the deformed nucleus as a superposition of spherical nuclei. The new mass formula is applicable to nuclei with Z ≥ 2 and N ≥ 2. The root-mean-square deviation from experimental masses is 666.7 keV, which is less than that of the previous mass formula, 689.8 keV.

AB - A nuclidic mass formula composed of a gross term, an even-odd term and a shell term is presented as a revised version of the mass formula constructed by the present authors and published in 2000. The gross term has almost the same functional form as in the previous formula, but the parameter values in it are somewhat different. The even-odd term is treated more carefully, and a considerable improvement is realized. The shell term is exactly the same as the previous one; it was obtained using spherical single-particle potentials and by treating the deformed nucleus as a superposition of spherical nuclei. The new mass formula is applicable to nuclei with Z ≥ 2 and N ≥ 2. The root-mean-square deviation from experimental masses is 666.7 keV, which is less than that of the previous mass formula, 689.8 keV.

UR - http://www.scopus.com/inward/record.url?scp=18444397749&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=18444397749&partnerID=8YFLogxK

U2 - 10.1143/PTP.113.305

DO - 10.1143/PTP.113.305

M3 - Article

AN - SCOPUS:18444397749

VL - 113

SP - 305

EP - 325

JO - Progress of Theoretical Physics

JF - Progress of Theoretical Physics

SN - 0033-068X

IS - 2

ER -