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Isospin dependence of the nuclear binding energy

Chinese Physics C 2021年第1期45卷 272-279页

作者： Y.Q.He J.K.Ge G.J.Fu H.Jiang School of Physics Science and Engineering Tongji UniversityShanghai 200092China School of Arts and Sciences Shanghai Maritime UniversityShanghai 201306China

In this paper,we study the symmetry energy and the Wigner energy in the binding energy formula for atomic *** simultaneously extract the I2 symmetry energy and Wigner energy coefficients using the double difference of "experimental" symmetry-Wigner energies,based on the binding energy data of nuclei with A≥*** study of the triple difference formula and the "experimental" symmetry-Wigner energy suggests that the macroscopic isospin dependence of binding energies is explained well by the I2 symmetry energy and the Wigner energy,and further consideration of the I4 term in the binding energy formula does not substantially improve the calculation result.

关键词： symmetry energy i^4 term Wigner energy nuclear binding energy

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Investigation of nuclear binding energy and Charge Radius Based on Random Forest Algorithm

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原子能科学技术 2023年第4期57卷 704-712页

作者： CAI Boshuai YU Tianjun LIN Xuan ZHANG Jilong WANG Zhixuan YUAN Cenxi Sino-French Institute of nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China

The random forest algorithm was applied to study the nuclear binding energy and charge *** regularized root-mean-square of error(RMSE)was proposed to avoid overfitting during the training of random *** for nuclides with Z,N>7 is reduced to 0.816 MeV and 0.0200 fm compared with the six-term liquid drop model and a three-term nuclear charge radius formula,*** interest is in the possible(sub)shells among the superheavy region,which is important for searching for new elements and the island of *** significance of shell features estimated by the so-called shapely additive explanation method suggests(Z,N)=(92,142)and(98,156)as possible subshells indicated by the binding *** the present observed data is far from the N=184 shell,which is suggested by mean-field investigations,its shell effect is not predicted based on present *** significance analysis of the nuclear charge radius suggests Z=92 and N=136 as possible *** effect is verified by the shell-corrected nuclear charge radius model.

关键词： nuclear binding energy nuclear charge radius random forest algorithm

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Effect of nuclear binding energy to K Factor

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Communications in Theoretical Physics 2007年第4期47卷 690-694页

作者： HOU Zhao-Yu GUO Ai-Qiang Department of Mathematics and Physics Shijiazhuang Railway Institute Shijiazhuang 050043 China Department of Physics Hebei Normal University Shijiazhuang 050016 China

We modify the square of virtual photon four-momentum by using nuclear binding energy formula, and calculate the effect of nuclear binding energy to K factor and Compton subprocess and annihilate subprocess in A-A collision Drell-Yan process. The outcome indicates that the effect of nuclear binding energy to K factor is obvious in little x region and it would disappear gradually as x increases.

关键词： Drell-Yan process nuclear binding energy K factor

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