Reworking the Tucson-Melbourne Three-Nucleon Potential

Reworking the Tucson-Melbourne Three-Nucleon Potential
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改造图森-墨尔本三核子潜力

DOI:
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发表时间:
2000
期刊:
影响因子:
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通讯作者:
H. Han
H. Han
中科院分区:
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文献类型:
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作者:
S. Coon;H. Han

文献摘要

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摘要:我们引入了强度常数的新值(即, a,B,c,d系数)。新的值来自介子工厂π N散射数据的当代色散关系分析。我们用变分的蒙特-卡罗方法计算了triton的原始和更新的三体力来研究这种更新的影响。我们去除了由于c系数引起的短程-π-程部分势,并讨论了对triton结合能的影响。
Abstract. We introduce new values of the strength constants (i.e., a, b, c, and d coefficients) of the Tucson-Melbourne (TM) 2π-exchange three-nucleon potential. The new values come from contemporary dispersion-relation analyses of meson-factory πN-scattering data. We make variational Monte-Carlo calculations of the triton with the original and updated three-body forces to study the effects of this update. We remove a short-range–π-range part of the potential due to the c coefficient and discuss the effect on the triton binding energy.