Understanding the D-sJ(+)(2317) and D-sJ(+)(2460) with sum rules in heavy quark effective theory

Understanding the D-sJ(+)(2317) and D-sJ(+)(2460) with sum rules in heavy quark effective theory
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DOI:
10.1103/physrevd.68.114011
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发表时间:
2003-06
期刊:
影响因子:
5
通讯作者:
Yuan-ben Dai;Chao-shang Huang;Chun Liu;Shi-Lin Zhu
Yuan-ben Dai;Chao-shang Huang;Chun Liu;Shi-Lin Zhu
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Yuan-ben Dai;Chao-shang Huang;Chun Liu;Shi-Lin Zhu

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在重夸克有效理论框架下,利用QCD求和规则计算了(c)在棒(0(+),1(+))和(1(+),2(+))激发态上的质量.结果与BABAR和CLEO观测到的态D-sJ(2317)和D-sJ(2460)是j(1)=1/2(+)双重态中的0(+)和1(+)态相一致。
In the framework of heavy quark effective theory we use QCD sum rules to calculate the masses of the (c) over bars(0(+),1(+)) and (1(+),2(+)) excited states. The results are consistent with the states D-sJ(2317) and D-sJ(2460) observed by BABAR and CLEO being the 0(+) and 1(+) states in the j(l)=1/2(+) doublet.