|Table of Contents|

The Effect of Four-Quark Components on the s(-overs) Spectrum(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2013年03期
Page:
31-36
Research Field:
物理学
Publishing date:

Info

Title:
The Effect of Four-Quark Components on the s(-overs) Spectrum
Author(s):
Song Yameng; Zou Jing; Hu Zhihui; Ping Jialun
School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China
Keywords:
s(-overs) states; channel-coupling; 3P0 model; chiral quark model
PACS:
O572.33
DOI:
-
Abstract:
The effect of four-quark component on the s(-overs) spectrum is studied in the framework of 3P0 model.The parameters of the chiral quark model are re-adjusted to fit the experimental data.The results show that the effect of four-quark component is rather large,and the effect cannot be absorbed by model parameters even for low-lying states.Our calculations also show that the percentage of four-quark components in the s(-overs) states is smaller than 15%,so the higher Fock components can be ignored.

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Last Update: 2013-09-30