Relativistic Spin-Isospin Dependent Response Function of Nucleus

Chin. Phys. Lett.

2000, Vol. 17

Issue (9): 652-654 DOI:

Original Articles

Relativistic Spin-Isospin Dependent Response Function of Nucleus

LIU Liang-Gang;CHEN Wei;AI Bao-Quan;ZHENG Xiao-Ping;Masahiro Nakano^*

Department of Physics, Zhongshan University, Guangzhou 510275 ^*University of Occupational and Environmental Health Kitakyusyu 807, Japan

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LIU Liang-Gang, CHEN Wei, AI Bao-Quan et al 2000 Chin. Phys. Lett. 17 652-654

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Abstract A full relativistic formalism is employed to derive the relativistic particle-hole and delta-hole excitation polarization insertion of pion propagator in nuclear matter. The spin-isospin-dependent response function of nucleus at high energy-momentum transfer is calculated with the nuclear matter approximation. The short range correlation effect, two-nucleon absorption and nucleus form factor effects are included in the calculation. The position and width of the resonance peak of the spin-isospin mode are reproduced and found to be coincident with experiment data. The position of the peak and its width is sensitive to Landau-Migdal parameter g’ which is about 0.6.

Keywords: 21.65.+f 24.10.Jv 25.55.Kr

Published: 01 September 2000

PACS:	21.65.+f
	24.10.Jv	(Relativistic models)
	25.55.Kr	(Charge-exchange reactions)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2000/V17/I9/0652

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	LIU Liang-Gang
	CHEN Wei
	AI Bao-Quan
	ZHENG Xiao-Ping
	Masahiro Nakano

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