Dynamical study of Omega(0)(c) in the chiral quark model

作者：Yang, Gang; Ping, Jialun^*

来源：PHYSICAL REVIEW D, 2018, 97(3): 034023.

DOI：10.1103/PhysRevD.97.034023

• PENTAQUARK STATES
• N-ASTERISK

Recently, the experimental results of the LHCb Collaboration suggested the existence of five new excited states of Omega(0)(c) : Omega(c)(3000)(0), Omega(c)(3050)(0), Omega(c)(3066)(0), Omega(c)(3090)(0), and Omega(c)(3119)(0); however, the quantum numbers of these new particles are not determined now. To understand the nature of these states, a dynamical calculation of Omega(0)(c) both in five-quark configuration with quantum numbers IJ(P) = 0(1/2)(-), 0(3/2)(-), 0(5/2)(-) and in three-quark configuration with positive parity and negative parity was performed in the framework of the chiral quark model with the help of the Gaussian expansion method. The results show the masses both of the 1P and the 2S states in ssc systems are comparable to experimental data; Besides, Xi(D)

• 出版日期2018-2-22
• 单位南京师范大学