An estimate of dibaryon production in the process of at anda facility*

Abstract

Abstract Although was first observed by WASA@COSY, its existence has yet to be further confirmed in different types of processes at other facilities. In this work, the possible production of the single dibaryon state in the process of in a future experiment at the anda facility is estimated. Following the method used in our previous study (Chin. Phys. C 46, 023105), a phenomenological Lagrangian approach is employed to study the single production. Based on the conclusions obtained by the non-relativistic constituent quark model, the cross section of the reaction via the intermediate state is estimated, which is in the order of . It is shown that the dominant contribution comes from the diagram with the subprocess. However, it is difficult to measure owing to the large background. Further, although the cross section of the diagram with the subprocess is small, i.e., only approximately of the total cross section or even smaller, the corresponding number of events is still sufficiently large and can be measured at anda because the outgoing and come from the same source .