The Study Of The Feasibility Of Searching Anti-d*(2380)in The Y(nS) Decay Channel

Recent years,the WASA-at-COSY collaboration found an exotic state in a series of nuclear scattering reactions,and relevant data showed that the mass of the particle is 2380MeV,and the decay width is 70MeV.The characteristics of large mass and narrow width suggested that the particle might have a strange structure which different from the traditional quark model.The phenomena quickly ignited the research enthusiasm in scientists.Based on previous theoretical calculations,the particle is generally believed to be a system of six light flavor quarks.On the other hand,since this particle only appeared in the nuclear reaction of WASA-at-COSY collaboration,we think it is necessary to further confirm or exclude its existence in the totally new mechanism in addition to the study of its structure.For this purpose,we based on the SU(3)the chiral quark model,using the S matrix unitarity and cross symmetry,calculated the decay widths of the semi-inclusive process of Y(nS)?d*(2380)+X.We first determined the parameters in the model by the process of decaying to the anti-deuteron,and then transited to the process of generating the anti-d*(2380)with varying parameters in some degrees,and get the possible differential widths of the corresponding process.It is hoped that some help can be given to the related experiments in the search for the particle.