西北师范大学学报(自然科学版)
西北師範大學學報(自然科學版)
서북사범대학학보(자연과학판)
JOURNAL OF NORTHWEST NORMAL UNIVERSITY(NATURAL SCIENCE)
2015年
1期
40-43
,共4页
重轻介子%相对论方程%自旋耦合%能谱
重輕介子%相對論方程%自鏇耦閤%能譜
중경개자%상대론방정%자선우합%능보
heavy-light meson%relativistic equation%spin interaction%energy spectrum
重味介子在强子谱研究中扮演着特殊的角色,它是含重夸克的最简单的强子体系。借助相对论性势夸克模型计算了各种D介子基态以及S波低激发态的能量,结果表明除了耦合道引起的质量移动外,赝标重味介子与矢量重味介子的质量分裂可归因于重轻夸克间的自旋耦合能。
重味介子在彊子譜研究中扮縯著特殊的角色,它是含重誇剋的最簡單的彊子體繫。藉助相對論性勢誇剋模型計算瞭各種D介子基態以及S波低激髮態的能量,結果錶明除瞭耦閤道引起的質量移動外,贗標重味介子與矢量重味介子的質量分裂可歸因于重輕誇剋間的自鏇耦閤能。
중미개자재강자보연구중분연착특수적각색,타시함중과극적최간단적강자체계。차조상대론성세과극모형계산료각충D개자기태이급S파저격발태적능량,결과표명제료우합도인기적질량이동외,안표중미개자여시량중미개자적질량분렬가귀인우중경과극간적자선우합능。
Heavy flavour mesons play a special role in the study of hadron spectrum , w hich are the simplest hadronic system that contain heavy quarks . In this paper , T he energy spectrum of a variety of D mesons in their ground state and low‐lying excited S waves are calculated based on relativistic potential quark model .In addition to mass shift due to channel coupling ,the mass splitting between heavy flavored pesudoscalar mesons and vector mesons arise from spin‐spin interaction between quarks .