A photonuclear reaction transport model based on an isospin-dependent quantum molecular dynamics model （IQMD） is presented in the intermediate energy region, which is named as GiQMD in this study. Methodology to sim...A photonuclear reaction transport model based on an isospin-dependent quantum molecular dynamics model （IQMD） is presented in the intermediate energy region, which is named as GiQMD in this study. Methodology to simulate the course of the photonuclear reaction within the IQMD frame is described to study the photo- absorption cross section and π meson production, and the simulation results are compared with some available experimental data as well as the Giessen Boltzmann-Uehling-Uhlenbeck model.展开更多
Neutron-proton momentum correlation functions are constructed from a three-body photodisintegration channel,i.e.,core+n+p,and used to explore the spatial-time information of the non-clustering Woods-Saxon spherical st...Neutron-proton momentum correlation functions are constructed from a three-body photodisintegration channel,i.e.,core+n+p,and used to explore the spatial-time information of the non-clustering Woods-Saxon spherical structure as well as theα-clustering structures of^12C or^16O based on an extended quantum molecular dynamics model.The emission time sequence of neutrons and protons is indicated by the ratio of velocity-gated neutron-proton correlation functions,demonstrating its sensitivity toα-clustering structures.This work sheds light on a new probe forα-clustering structures.展开更多
基金Supported by the National Natural Science Foundation of China under Grant Nos 11421505 and 11220101005the National Basic Research Program of China under Grant No 2014CB845401the Strategic Priority Research Program of the Chinese Academy of Sciences under Grant No XDB16
文摘A photonuclear reaction transport model based on an isospin-dependent quantum molecular dynamics model （IQMD） is presented in the intermediate energy region, which is named as GiQMD in this study. Methodology to simulate the course of the photonuclear reaction within the IQMD frame is described to study the photo- absorption cross section and π meson production, and the simulation results are compared with some available experimental data as well as the Giessen Boltzmann-Uehling-Uhlenbeck model.
基金Partially supported by the National Natural Science Foundation of China(11890714,11421505,11905284,11961141003)the Strategic Priority Research Program of the CAS(XDB34030200,XDB16)and the Key Research Program of Frontier Sciences of the CAS(QYZDJ-SSW-SLH002)。
文摘Neutron-proton momentum correlation functions are constructed from a three-body photodisintegration channel,i.e.,core+n+p,and used to explore the spatial-time information of the non-clustering Woods-Saxon spherical structure as well as theα-clustering structures of^12C or^16O based on an extended quantum molecular dynamics model.The emission time sequence of neutrons and protons is indicated by the ratio of velocity-gated neutron-proton correlation functions,demonstrating its sensitivity toα-clustering structures.This work sheds light on a new probe forα-clustering structures.
