Isovector Dipole Giant Resonances: a Relativistic Vlasov Equation Approach

Chin. Phys. Lett.

1995, Vol. 12

Issue (3): 144-147 DOI:

Original Articles

Isovector Dipole Giant Resonances: a Relativistic Vlasov Equation Approach

ZHOU Baosen¹;CAI Yanhuang;ZHU Zhiyuan

¹Institute of Nuclear Research, Academia Sinica, Shanghai 201800 China Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080

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ZHOU Baosen, CAI Yanhuang, ZHU Zhiyuan 1995 Chin. Phys. Lett. 12 144-147

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Abstract In the framework of relativistic quantum hadron dynamical theory, under semiclassical approximation and taking the vacuum fluctuation into account, a relativistic Vlasov equation (RVE) has been derived. Using RVE and considering other relativistic effects, we have studied the isovector dipole giant resonances built on ground state in spherical nuclei. The main results shown that the resonance energies for each multipole are larger than those obtained from the non-relativistic classical Vlasov approach. But by means of choosing a reasonable symmetry potential as 100MeV, the relativistic results can fit the experimental results very well.

Keywords: 21.10.-k 24.30.Cz 24.10.Jv

Published: 01 March 1995

PACS:	21.10.-k	(Properties of nuclei; nuclear energy levels)
	24.30.Cz	(Giant resonances)
	24.10.Jv	(Relativistic models)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1995/V12/I3/0144

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