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Validity of the relativistic impulse approximation for elastic proton-nucleus scattering at energies lower than 200 MeV
Li, Z. P.; Hillhouse, G. C.; Meng, J.; Li, ZP , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
2008
发表期刊PHYSICAL REVIEW C
ISSN0556-2813
卷号78期号:1页码:-
摘要We present the first study to examine the validity of the relativistic impulse approximation (RIA) for describing elastic proton-nucleus scattering at incident laboratory kinetic energies lower than 200 MeV. For simplicity we choose a (208)Pb target, which is a spin-saturated spherical nucleus for which reliable nuclear structure models exist. Microscopic scalar and vector optical potentials are generated by folding invariant scalar and vector scattering nucleon-nucleon (NN) amplitudes, based on our recently developed relativistic meson-exchange model, with Lorentz scalar and vector densities resulting from the accurately calibrated PK1 relativistic mean field model of nuclear structure. It is seen that phenomenological Pauli blocking (PB) effects and density-dependent corrections to sigma N and omega N meson-nucleon coupling constants modify the RIA microscopic scalar and vector optical potentials so as to provide a consistent and quantitative description of all elastic scattering observables, namely, total reaction cross sections, differential cross sections, analyzing powers and spin rotation functions. In particular, the effect of PB becomes more significant at energies lower than 200 MeV, whereas phenomenological density-dependent corrections to the NN interaction also play an increasingly important role at energies lower than 100 MeV.
部门归属[Li, ZP; Hillhouse, GC; Meng, J] Peking Univ, Sch Phys, Beijing 100871, Peoples R China; [Hillhouse, GC; Meng, J] Univ Stellenbosch, Dept Phys, ZA-7600 Stellenbosch, South Africa; [Meng, J] Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; [Meng, J] Natl Lab Heavy Ion Accelerator, Ctr Theory Nucl Phys, Lanzhou 730000, Peoples R China
关键词Reaction Cross-sections Mean-field Theory Lorentz Covariant Representation Ground-state Properties Nn Interaction Intermediate Energies Polarized Protons Optical-model Exotic Nuclei Pb-208
学科领域Physics
资助者Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166] ; Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166] ; Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166] ; Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166]
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收录类别SCI
资助者Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166] ; Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166] ; Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166] ; Major State Basic Research Developing Program[2007CB815000]; National Natural Science Foundation of China[10435010, 10775004, 10221003]; National Research Foundation of South Africa[2054166]
WOS记录号WOS:000258636200039
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5510
专题理论物理所1978-2010年知识产出
通讯作者Li, ZP , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
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Li, Z. P.,Hillhouse, G. C.,Meng, J.,et al. Validity of the relativistic impulse approximation for elastic proton-nucleus scattering at energies lower than 200 MeV[J]. PHYSICAL REVIEW C,2008,78(1):-.
APA Li, Z. P.,Hillhouse, G. C.,Meng, J.,&Li, ZP , Peking Univ, Sch Phys, Beijing 100871, Peoples R China.(2008).Validity of the relativistic impulse approximation for elastic proton-nucleus scattering at energies lower than 200 MeV.PHYSICAL REVIEW C,78(1),-.
MLA Li, Z. P.,et al."Validity of the relativistic impulse approximation for elastic proton-nucleus scattering at energies lower than 200 MeV".PHYSICAL REVIEW C 78.1(2008):-.
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