ACCURATE NUCLEON-NUCLEON POTENTIAL WITH CHARGE-INDEPENDENCE BREAKING
ACCURATE NUCLEON-NUCLEON POTENTIAL WITH CHARGE-INDEPENDENCE BREAKING
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DOI：
10.1103/physrevc.51.38
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发表时间：
1995-01-01
影响因子：
3.1
通讯作者：
SCHIAVILLA, R
中科院分区：
文献类型：
--
作者：
WIRINGA, RB;STOKS, VGJ;SCHIAVILLA, R
我们提出了一种新的高质量核子-核子势，具有明确的电荷依赖性和电荷不对称性，我们将其命名为 Argonne v 18。该模型具有一个包含 14 个算子组件的电荷无关部分，是 Argonne v 14 势的更新版本。添加了三个额外的电荷相关算子和一个电荷不对称算子，以及完整的电磁相互作用。该势已直接适合奈梅亨 pp 和 np 散射数据库、低能 nn 散射参数和氘核结合能。它具有 40 个可调节参数，对于 0–350 MeV 范围内的 4301 pp 和 np 数据，每个数据的 χ 2 为 1.09。
We present a new high-quality nucleon-nucleon potential with explicit charge dependence and charge asymmetry, which we designate Argonne v 18. The model has a charge-independent part with 14 operator components that is an updated version of the Argonne v 14 potential. Three additional charge-dependent and one charge-asymmetric operators are added, along with a complete electromagnetic interaction. The potential has been fit directly to the Nijmegen pp and np scattering database, low-energy nn scattering parameters, and deuteron binding energy. With 40 adjustable parameters it gives a χ 2 per datum of 1.09 for 4301 pp and np data in the range 0–350 MeV.