Effects of In-Medium Nucleon-Nucleon Cross Section and Nuclear Density Distribution on the Proton-Nucleus Total Reaction Cross Section

doi:10.1088/0256-307X/30/12/122501

Chin. Phys. Lett.

2013, Vol. 30

Issue (12): 122501 DOI: 10.1088/0256-307X/30/12/122501

NUCLEAR PHYSICS

Effects of In-Medium Nucleon-Nucleon Cross Section and Nuclear Density Distribution on the Proton-Nucleus Total Reaction Cross Section

HAN Rui^1,2,3, CHEN Zhi-Qiang^1**, R. Wada¹, ZHANG Su-Ya-La-Tu^1,3, LIU Xing-Quan^1,3, LIN Wei-Ping^1,3, JIN Zeng-Xue^1,3, HU Bi-Tao²

¹Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000
²School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000
³University of Chinese Academy of Sciences, Beijing 100049

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HAN Rui, CHEN Zhi-Qiang, R. Wada et al 2013 Chin. Phys. Lett. 30 122501

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Abstract We present the proton-total reaction cross sections σ_R by comparing the experimental data with the Glauber model calculation using four sets of nucleon-nucleon cross sections used in literature (free nucleon-nucleon cross sections (NNCS), phenomenological NNCS, Bruckner-type NNCS and Pauli NNCS) and different nuclear densities for symmetric and asymmetric nuclei. For light symmetric target nuclei, the experimental σ_R data are well reproduced by the former three NNCS with the ground state density distributions of relativistic mean-field theory. On the other hand, for asymmetry heavier target nuclei, the calculations of the σ_R data depend significantly on the nuclear density distribution at large radius in the low energy region. The experimental σ_R of these nuclei are well reproduced by the empirical 3 pF density distribution and the in-medium NNCS. The neutron surface distributions are also discussed based on the 3 pF nuclear charge distributions.

Received: 09 September 2013 Published: 13 December 2013

PACS:	25.40.-h	(Nucleon-induced reactions)
	24.10.-i	(Nuclear reaction models and methods)
	13.75.Cs

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https://cpl.iphy.ac.cn/10.1088/0256-307X/30/12/122501 OR https://cpl.iphy.ac.cn/Y2013/V30/I12/122501

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	HAN Rui
	CHEN Zhi-Qiang
	R. Wada
	ZHANG Su-Ya-La-Tu
	LIU Xing-Quan
	LIN Wei-Ping
	JIN Zeng-Xue
	HU Bi-Tao

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