Role of the newly measured B → KD(D)over-bar process to establish χ c0(2P) state

In this work, the branching ratio B[B -> K chi(c0) (2P) is extracted for the first time through the fit fractions in the newly measured B -> KD (D) over bar process by LHCb. With the rescattering mechanism, this extracted branching ratio is reproduced well. Our study further enforces the role of the newly measured B -> KD (D) over bar process to establish the chi(c0) (2P) charmonium state, which is a crucial step when constructing the charmonium family.

Automated summary

The branching ratio B[B -> K chi(c0) (2P)] is extracted for the first time through fit fractions in the newly measured B -> KD (D) over bar process by LHCb. The extracted branching ratio is well reproduced with the rescattering mechanism, highlighting the role of the B -> KD (D) over bar process in establishing the chi(c0) (2P) charmonium state, a crucial step in constructing the charmonium family.