The greatest amount of nuclear binding energy per nucleon occurs for nuclei in the vicinity of iron . 按每個核子計,最大的核結合能量出現在鐵附近的核中。
Binding energy per nucleon 每個核子的結合能
Binding energy per nucleon as a function of mass number total number of protons and neutrons 原子核的比結合能與質量數質子和中子總數的關系圖
The effective coupling constants including isoscalar and mesons and isovector and mesons in the rmf are extracted from the dbhf results in symmetric and asymmetric nuclear matter . two sets of effective interactions in the rmf approach are deduced by imposing a condition , where the dbhf scalar and . vector self - energy or scalar self - energy and binding energy per nucleon at each density and asymmetry parameter are reproduced , respectively 為了使我們提取的有效相互作用能夠準確地再現出dbhf計算的核狀態(tài)方程以及密度依賴的不對稱能,我們采用第二種萬法提取有效介子核子耦合常數,即要求在對稱核物質中,每個密度處ilif計算出的標量自能及總結合能與dbhf給出的標量自能及總結合能一致,提取出。
In other words , the same amount of energy will be given off when stand - alone nucleons come together to form the nucleus . when the binding energy per nucleon is plotted against the mass number , i . e . total number of protons and neutrons in a nucleus the bottom right figure , it is found that the curve peaks around the mass number 56 , i . e . the iron nucleus 如果把原子核內每顆核粒子的平均結合能又稱比結合能與質量數原子核中的質子和中子的總數繪制成圖右下圖,便可發(fā)現圖中曲線在質量數大約等于56即鐵原子核時到達最高點,即是鐵原子核的總體能量最低。