The microscopic global nucleon–nucleus optical model potential(OMP)proposed by Whitehead,Lim,and Holt,the WLH potential(Whitehead et al.,Phys Rev Lett 127:182502,2021),which was constructed in the framework of many-b...The microscopic global nucleon–nucleus optical model potential(OMP)proposed by Whitehead,Lim,and Holt,the WLH potential(Whitehead et al.,Phys Rev Lett 127:182502,2021),which was constructed in the framework of many-body per-turbation theory with state-of-the-art nuclear interactions from chiral effective field theory(EFT),was tested with(p,d)transfer reactions calculated using adiabatic wave approximation.The target nuclei included both stable and unstable nuclei,and the incident energies reached 200 MeV.The results were compared with experimental data and predictions using the phenomenological global optical potential of Koning and Delaroche,the KD02 potential.Overall,we found that the micro-scopic WLH potential described the(p,d)reaction angular distributions similarly to the phenomenological KD02 potential;however,the former was slightly better than the latter for radioactive targets.On average,the obtained spectroscopic factors(SFs)using both microscopic and phenomenological potentials were similar when the incident energies were below approxi-mately 120 MeV.However,their difference tended to increase at higher incident energies,which was particularly apparent for the doubly magic target nucleus 40Ca.展开更多
基金Supported by National Natural Science Foundation of China(Nos.U2067205 and 12205098)National Key Laboratory of Computational Physics(HX02021-35).
文摘The microscopic global nucleon–nucleus optical model potential(OMP)proposed by Whitehead,Lim,and Holt,the WLH potential(Whitehead et al.,Phys Rev Lett 127:182502,2021),which was constructed in the framework of many-body per-turbation theory with state-of-the-art nuclear interactions from chiral effective field theory(EFT),was tested with(p,d)transfer reactions calculated using adiabatic wave approximation.The target nuclei included both stable and unstable nuclei,and the incident energies reached 200 MeV.The results were compared with experimental data and predictions using the phenomenological global optical potential of Koning and Delaroche,the KD02 potential.Overall,we found that the micro-scopic WLH potential described the(p,d)reaction angular distributions similarly to the phenomenological KD02 potential;however,the former was slightly better than the latter for radioactive targets.On average,the obtained spectroscopic factors(SFs)using both microscopic and phenomenological potentials were similar when the incident energies were below approxi-mately 120 MeV.However,their difference tended to increase at higher incident energies,which was particularly apparent for the doubly magic target nucleus 40Ca.
文摘文中指出权威英文词典在物理场定义上的误导并加以澄清。《朗文现代高级词典》(Longman ModernEnglish Dictionary),《朗文当代高级词典》(Longman Dictionary of Contemporary English),《牛津高阶英汉双解词典》(Oxford Advanced Learner s English-Chinese Dictionary),《韦氏词典》(Merriam-Webster s NewCollegiate Dictionary),作为美国勘探地球物理学会(SEG)名词术语,特别是地球物理名词术语标准的《勘探地球物理百科词典》(Encyclopedic Dictionary of Exploration Geophysics)和《应用地球物理百科词典》(TheEncyclopedic Dictionary of Applied Geophysics),以及中国的一些地球物理教科书、专著及词典,把物理场定义为物理作用或效应存在的空间或区域,不同于物理学中场论及国外地球物理文献的定义:空间中存在的作用或效应。定义物理场为物理作用或效应存在的空间,混淆了物理"场"本身及"场域"的概念,不是一个标准的物理学定义。建议物理场定义为:空间中存在的物理作用。
