Effect of source size and emission time on the p-p momentum correlation function in the two-proton emission process

doi:10.1007/s41365-020-00759-w

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Effect of source size and emission time on the p-p momentum correlation function in the two-proton emission process
	Zhou, L ; Fang, DQ
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2020
卷号	31 期号:5 页码:-
关键词	PROTON NUCLEI
ISSN号	1001-8042
DOI	10.1007/s41365-020-00759-w
文献子类	期刊论文
英文摘要	The effect of source size and emission time on the proton-proton (p-p) momentum correlation function (Cpp(q) has been studied systematically. Assuming a spherical Gaussian source with space and time profile according to the function the correlation function calculation code (CRAB), the results indicate that one C-pp(q) distribution corresponds to a unique combination of source size r(0) and emission time tau. Considering the possible nuclear deformation from a spherical nucleus, an ellipsoidal Gaussian source characterized by the deformation parameter epsilon = Delta R/R has been simulated. There is almost no difference of C-pp(q) between the results of spherically and ellipsoidally shaped sources with small deformation. These results indicate that a unique source size r(0) and emission time could be extracted from the p-p momentum correlation function, which is especially important for identifying the mechanism of two-proton emission from proton-rich nuclei. Furthermore, considering the possible existence of cluster structures within a nucleus, the double Gaussian source is assumed. The results show that the p-p momentum correlation function for a source with or without cluster structures has large systematical differences with the variance of r(0) and tau. This may provide a possible method for experimentally observing the cluster structures in proton-rich nuclei.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/32826]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China 3.Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion Beam Applicat MOE, Shanghai 200433, Peoples R China
推荐引用方式 GB/T 7714	Zhou, L,Fang, DQ. Effect of source size and emission time on the p-p momentum correlation function in the two-proton emission process[J]. NUCLEAR SCIENCE AND TECHNIQUES,2020,31(5):-.
APA	Zhou, L,&Fang, DQ.(2020).Effect of source size and emission time on the p-p momentum correlation function in the two-proton emission process.NUCLEAR SCIENCE AND TECHNIQUES,31(5),-.
MLA	Zhou, L,et al."Effect of source size and emission time on the p-p momentum correlation function in the two-proton emission process".NUCLEAR SCIENCE AND TECHNIQUES 31.5(2020):-.