Tetraneutron in the Chiral Quark Model
MENG Nan, LI Bo-Lin, PING Jia-Lun**
Department of Physics, Nanjing Normal University, Nanjing 210046
Abstract ：The tetraneutron state is studied in the framework of the chiral quark model with tetrahedron configuration. The universal attraction property of σ -meson exchange leads to a strong attraction in the effective potential of the system. It is possible to form a bound state. For comparison, the naive quark model is also employed to carry out the calculation. A weak attraction, which is too weak to bind the system, is obtained.
收稿日期: 2013-11-06
出版日期: 2014-01-28
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2014, Vol. 31 
