论文标题
$ p_ {c}（4312）$的磁矩为$ \ bar {d}σ_{c} $分子状态
The magnetic moment of $P_{c}(4312)$ as a $\bar{D}Σ_{c}$ molecular state
论文作者
论文摘要
In this paper, we tentatively assign the $P_{c}(4312)$ to be a $\bar{D}Σ_{c}$ molecular state with quantum number $J^{P}=\frac{1}{2}^{-}$, and calculate its magnetic moment using the QCD sum rule method in external weak electromagnetic field.从外部电磁场中的两点相关函数开始，并以电磁相互作用的力量扩展，我们从对外部电磁场的线性响应中提取磁矩。 $ p_ {c}（4312）$的磁矩的数值为$μ__{p_ {c}} = 1.75^{+0.15} _ { - 0.11} $。
In this paper, we tentatively assign the $P_{c}(4312)$ to be a $\bar{D}Σ_{c}$ molecular state with quantum number $J^{P}=\frac{1}{2}^{-}$, and calculate its magnetic moment using the QCD sum rule method in external weak electromagnetic field. Starting with the two-point correlation function in external electromagnetic field and expanding it in power of the electromagnetic interaction Hamiltonian, we extract the magnetic moment from the linear response to the external electromagnetic field. The numerical value of the magnetic moment of $P_{c}(4312)$ is $μ_{P_{c}}=1.75^{+0.15}_{-0.11}$.
