In this study,we reconstruct theγ-photon energy spectrum,which is in good agreement with the experimental data of ^(86)Kr+^(12)C at E/A=44 Me V within the framework of the modified EQMD model.The directed and ellipti...In this study,we reconstruct theγ-photon energy spectrum,which is in good agreement with the experimental data of ^(86)Kr+^(12)C at E/A=44 Me V within the framework of the modified EQMD model.The directed and elliptic flows of free protons and direct photons were investigated by considering theα-clustering structure of ^(12)C.Compared with free protons,direct photon flows provide clearer information about the early stage of a nuclear reaction.The difference in the collective flows between different configurations of ^(12)C is observed in this study.This indicates that the collective flows of direct photons are sensitive to the initial configuration.Therefore,theγbremsstrahlung process might be taken as an alternative probe to investigate theα-clustering structure in a light nucleus from heavy-ion collisions within the Fermienergy region.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 Guangdong Major Project of Basic and Applied Basic Research(No.2020B0301030008)the National Natural Science Foundation of China(Nos.11890710,11890714,and 11961141003)the Strategic Priority Research Program of the CAS(No.XDB34000000)。
文摘In this study,we reconstruct theγ-photon energy spectrum,which is in good agreement with the experimental data of ^(86)Kr+^(12)C at E/A=44 Me V within the framework of the modified EQMD model.The directed and elliptic flows of free protons and direct photons were investigated by considering theα-clustering structure of ^(12)C.Compared with free protons,direct photon flows provide clearer information about the early stage of a nuclear reaction.The difference in the collective flows between different configurations of ^(12)C is observed in this study.This indicates that the collective flows of direct photons are sensitive to the initial configuration.Therefore,theγbremsstrahlung process might be taken as an alternative probe to investigate theα-clustering structure in a light nucleus from heavy-ion collisions within the Fermienergy region.
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.
基金National Key R&D Program of China(2018YFA0404403,2016YFE0129300)National Natural Science Foundation of China(11535004,11761161001,11375086,11120101005,11175085,11235001,11565010,and11881240623)+1 种基金Science and Technology Development Fund of Macao(008/2017/AFJ)China Postdoctoral Science Foundation(2018M640470)~~
