Quark-Model Nucleon-Nucleon Interaction Applied to Nucleon-Deuteron Scattering
Quark-Model Nucleon-Nucleon Interaction Applied to Nucleon-Deuteron Scattering
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夸克模型核子-核子相互作用应用于核子-氘核散射
DOI：
10.1007/s00601-012-0433-z
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发表时间：
2013
期刊：
影响因子：
1.6
通讯作者：
K. Fukukawa and Y. Fujiwara
中科院分区：
文献类型：
--
作者：
Shinji Ejiri;Norikazu Yamada;K. Fukukawa and Y. Fujiwara
本文利用夸克模型核子-核子相互作用fss ~ 2，研究了入射核子能量EN = 65 MeV的核子-氘核弹性散射的中子-氘核低能有效射程参数、微分截面和自旋极化观测值。在低能区EN ≤ 25 MeV，除了核子分析势Ay（θ）和氘矢量分析势iT_（11）（θ）外，在不引入三种核子力的情况下，这些观测量得到了一致的描述。长期存在的Aypuzzle略有改进，但仍然存在。我们已经将屏蔽库仑力的质子-氘散射，修改了锐截止库仑力的的Pakent-Phatak方法。讨论了库仑效应对弹性散射观测值的影响。
We have examined the neutron-deuteron low-energy effective-range parameters, differential cross sections and spin polarization observables of the elastic nucleon-deuteron scattering up to the incident nucleon energyEN= 65 MeV, using the quark-model nucleon–nucleon interaction fss2. These observables are consistently described without introducing three nucleon forces except for the nucleon analyzing powerAy(θ) and the deuteron vector analyzing poweriT11(θ) in the low-energy regionEN≤ 25 MeV. The long-standingAypuzzle is slightly improved, but still remains. We have incorporated the screened Coulomb force to the proton-deuteron scattering, modifying the Vincent–Phatak approach for the sharp cutoff Coulomb force. The Coulomb effect on the elastic scattering observables is discussed.