2016/10/15 by D. Q. Fang, Deqing Fang, Y. G. +58 · 30 citations
Physics and Astronomy · #Atomic and Molecular Physics #Atomic physics #Nuclear physics #Nuclear physics research studies #Physics #Proton #Proton emission #Quantum Chromodynamics and Particle Interactions #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.94.044621
published in Physical Review C 94(4) (American Institute of Physics) · 6 pages, 4 figures; accepted by Phys. Rev. C
arxiv created 2016/10/15 · openalex created_date 2016/10/28 · openalex publication_date 2016/10/28 · arxiv updated 2017/06/06 · openalex updated_date 2026/08/05
The proton-proton momentum correlation functions [Cpp(q)] for the kinematically complete decay channels 23Al\ensuremath→p+p+21Na and 22Mg\ensuremath→p+p+20Ne have been measured at the RIKEN RI Beam Factory. From the very different correlation strength of Cpp(q) for 23Al and 22Mg, the source size and emission time information were extracted from the Cpp(q) data by assuming a Gaussian source profile in the correlation function calculation code (crab). The results indicated that the mechanism of two-proton emission from 23Al was mainly sequential emission, while that of 22Mg was mainly three-body simultaneous emission. By combining our earlier results of the two-proton relative momentum and the opening angle, it is pointed out that the mechanism of two-proton emission could be distinguished clearly.