In this work, we carry out the study of heavy flavor pentatuarks with four heavy quarks, which have typical $QQQQbar q$ configuration. Within the Chromomagnetic Interaction model, the mass spectrum of these discussed $QQQQbar q$ pentaquarks is given.
In addition to the mass spectrum analysis, we also illustrate their two-body strong decay behavior by estimating some ratios of decay channels. By these effort, we suggest that future experiment should pay attention to this kind of pentaquark.
Very recently, the LHCb Collaboration reported a fully charmed tetraquark state $X(6900)$ in the invariant mass spectrum of $J/psi$ pairs. If one $J/psi$ meson is replaced with a fully charmed baryon, we obtain a fully charmed pentaquark candidate. I
n this work, we perform a systematic study on the mass spectra of the S-wave fully heavy pentaquark $QQQQbar{Q}$ in the framework of the chromomagnetic interaction model. Based on our results in two different schemes, we further investigate the decay behaviors for them. We hope that our study will be helpful in searching for such types of exotic pentaquark states in experiments in the future.
In the framework of the modified chromo-magnetic interaction model, we perform a systematical study on the mass spectrums of the ground pentaquark states with $qqqqbar{Q}$, $qqqQbar{q}$, $QQQQbar{q}$, $QQQQbar{Q}$, and $QQQqbar{Q}$, $(Q=c,b; q=n,s; n
=u,d)$ configurations. The isospin-color-spin wave functions satisfying Pauli principle for each type of ground pentaquark states are constructed. With the help of experimental data, we estimate their possible mass spectrums in two different schemes. Based on our results, we present a detailed analysis on the mass spectrums and decay behaviors for the discussed pentquark states. We hope that our study will be helpful to experimentally search for such types of the exotic pentaquark states in the future.
In the framework of the color-magnetic interaction model, we have systematically calculated the mass splittings for the S-wave triply heavy pentaquark states with the configuration $qqQQbar{Q}$ $(Q=c,b;q=u,d,s)$. Their masses are estimated and their
stabilities are discussed according to possible rearrangement decay patterns. Our results indicate that there may exist several stable or narrow such states. We hope the present study can help experimentalists to search for exotic pentaquarks.
