首都师范大学学报（自然科学版）2012，Vol.33Issue(2)：31-33,3.
在Bethe-Salpeter方程框架下研究DK分子态
Analyzing the DK molecular state in the Bethe-Salpeter approach
摘要
Abstract
We analyze the state D++s0 (2317) ,which was discovered as a very narrow peak by the Babar collaboration while analyzing the invariant mass distribution of the decay final state D++,0. Assuming D++s0(2317) that is composed of DK, we use the Bethe-Salpeter equation to study the structure of D++s0(2317) and the isospin breaking decay process D++s0 (2317)→Ds+π0. We also consider the η -π0 mixing effect in the decay. It is shown that D++s0 (2317) can be formed as a molecular bound state of DK and the mixing effect has significant influence on the decay. The decay width in our model agrees with the resolution of the detector. Other theoretical models are also used to study the property and the structure of D++s0(2317) .assuming that D++s0(2317) may have other forms, and the results agree with the experimental data too. So the structure of may be other forms or the mixing of them. Our results will give important instructions to the forthcoming experiments.关键词
Bethe-Salpeter方程/分子态/衰变宽度Key words
Bethe-Salpeter equation/ molecular state/ decay width分类
数理科学引用本文复制引用
谢振兴..在Bethe-Salpeter方程框架下研究DK分子态[J].首都师范大学学报（自然科学版）,2012,33(2):31-33,3.
