nucleon number

1. The Nucleon Number of the Pervading Layer of the Atomic Nucleus and the Cause of Progressive Decreasing of the Heavy Elemental Lifetime
   关于原子核弥散层的核子数和重元素寿命递减的缘由
2. In additions, we can find that the strange matter density where the-condensate emerges is led to the ratio of the nucleon number to baryon number.
   π-凝聚出现时所对应的奇异物质密度值与核子在奇异物质中的比例有关。
3. The present paper reports the average nucleon number density in the intrinsic states of SU ( 3) of the Fermion Dynamical Symmetry Model ( FDSM).
   给出了费米子动力学对称模型中的SU（3）对称极限的内禀态下的平均核子数密度。
4. Low-lying collective spectrum of a nucleus depends on its nucleon number.
   原子核的低能集体谱依赖于它的核子数。
5. Influence of valence nucleon number on the low-lying collective spectrum
   价核子数对核低能集体谱的影响
6. The result shows that the transition from vibrational to rotational spectrum is mainly caused by the increase of valence nucleon number.
   结果表明，从振动能谱向转动能谱的过渡主要是由价核子数增加引起的。
7. With the appearance of different models, their scope of application is more and more wide. Shell model is accurate if nucleon number is magic number or nearby. The scope of collective model can be extended to the situation far away from the magic nuclei.
   随着这些模型的发展，它们所适用的范围也变得越来越广泛：原子核壳模型在核子数为幻数或者是幻数附近的时候比较精确，而集体模型却可以应用于远离幻数核的情况。
8. The distribution height is mainly determined by the effective nucleon number and the center-of-mass energy, and the distribution width is mainly determined by the revised width in the Landau model and the sources rapidity shifts.
   分布的高度主要取决于有效的核子数和质心能量，而分布的宽度则主要取决于朗道模型的修正宽度和发射源的快度移动。

noun

1. the sum of the number of neutrons and protons in an atomic nucleus

   Synonym:    mass number