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作 者:Junhuai Xu Zhi Qin Renjie Zou Dawei Si Sheng Xiao Baiting Tian Yijie Wang Zhigang Xiao 许俊怀;秦智;邹仁杰;司大伟;肖圣;田柏汀;王轶杰;肖志刚(Department of Physics,Tsinghua University,Beijing 100084,China;Center of High Energy Physics,Tsinghua University,Beijing 100084,China)
机构地区:[1]Department of Physics,Tsinghua University,Beijing 100084,China [2]Center of High Energy Physics,Tsinghua University,Beijing 100084,China
出 处:《Chinese Physics Letters》2025年第3期35-43,共9页中国物理快报(英文版)
基 金:supported by the National Natural Science Foundation of China(Grant Nos.12335008 and 12205160);the support of the Center for High Performance Computing and Initiative Scientific Research Program in Tsinghua University。
摘 要:By combining femtoscopic interferometry with an optical deblurring algorithm,we present a novel method to image the source in heavy-ion collisions(HICs),while simultaneously determining the interaction strength between particle pairs.The spatial distribution of the emission source has been reconstructed for protons(p)and antiprotons(^(-)p)from the respective pp and^(-)p^(-)p correlation functions in Au+Au collisions at√S_(NN)=200 GeV.Within experimental uncertainties,protons and antiprotons share the same freeze-out distribution showing higher density in the center compared to the widely assumed Gaussian shape.The results evidence the matter–antimatter symmetry in coordinate space at the freeze-out moment before the nucleons are fully randomized in the collisions.
关 键 词:assumed COORDINATE SYMMETRY
分 类 号:O57[理学—粒子物理与原子核物理]
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