Doubly charmed molecular pentaquarks

Abstract

We perform a systematic exploration of the possible doubly charmed molecular pentaquarks composed of Σc(⁎)D(⁎) with the one-boson-exchange potential model. After taking into account the S−D wave mixing and the coupled channel effects, we predict several possible doubly charmed molecular pentaquarks, which include the ΣcD with I(JP)=1/2(1/2−), Σc⁎D with 1/2(3/2−), and ΣcD⁎ with 1/2(1/2−), 1/2(3/2−). The ΣcD state with 3/2(1/2−) and ΣcD⁎ state with 3/2(1/2−) may also be suggested as candidates of doubly charmed molecular pentaquarks. The ΣcD and Σc⁎D states can be searched for by analyzing the ΛcDπ invariant mass spectrum of the bottom baryon and B meson decays. The ΣcD⁎ states can be searched for in the invariant mass spectrum of ΛcD⁎π, ΛcDππ and ΛcDπγ. Since the width of Σc⁎ is much larger than that of D⁎, Σc⁎D→ΛcDπ will be the dominant decay mode. We sincerely hope these candidates for the doubly charmed molecular pentaqurks will be searched by LHCb or BelleII collaboration in the near future.