各向异性格点量子色动力学中λ（1405）的五夸克图像
Five-quark picture of Lambda(1405) in anisotropic lattice QCD
摘要：
采用N \bar{K}型奇异5 Q算符，用淬熄格点量子色动力学研究了λ（1405）的5 Q图像.为了离散N \bar{K}和π π散射态，在空间方向上对夸克场施加了一种与味道有关的混合边界条件（HBC）.手征外推到物理夸克质量区后得到5 Q质量m_{5Q} \simeq 1.89 GeV，该质量太重而不能用λ（1405）来鉴别.然后，Lambda（1405）似乎既不是纯的3Q态也不是纯的5Q态，因此我们提出了一个有趣的可能性，即Lambda（1405）是3Q和5Q态的混合态。
英文摘要：
Five-quark (5Q) picture of Lambda(1405) is studied using quenched lattice QCD with an exotic 5Q operator of N\bar{K} type. To discreminate mere N\bar{K} and Σπscattering states, Hybrid Boundary Condition (HBC), a flavor-dependent boundary condition, is imposed on the quark fields along spatial direction. 5Q mass m_{5Q}\simeq 1.89 GeV is obtained after the chiral extrapolation to the physical quark mass region, which is too heavy to be identified with Lambda(1405). Then, Lambda(1405) seems neither a pure 3Q state nor a pure 5Q state, and therefore we present an interesting possibility that Lambda(1405) is a mixed state of 3Q and 5Q states.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
