Production of pentaquarks with hidden charm and double strangeness in b and b decays

Recently, several pentaquark states P₂ₒₒ, with global flavor c c s s n, have been predicted within a theoretical framework based on unitary coupled channels. We study theoretically the feasibility to observe the P₂ₒₒ with I (JP) =12 (12^-) in the decays b⁰ c ⁰ and b^- K^- c ⁰. Indeed, within the model, the c ⁰ channel is the lowest mass pseudoscalar-baryon channel to which this pentaquark state couples, thus we can expect to observe its signal in the c ⁰ invariant mass distribution of the mentioned decays. We identify the dominant weak decay processes and then implement the hadronization into the different meson-baryon channels in the final state, linked by flavor symmetry. The dominant meson-baryon final state interaction is then implemented to generate the full amplitude, implicitly accounting for the dynamical emergence of the pentaquark states. We obtain a clear Breit-Wigner-like resonant signal in the spectrum of the b^- decay, exceeding that in the b⁰ decay by two to three orders of magnitude. In the case of the latter decay, the resonant state would manifest as a significant dip in the spectrum. We study the feasibility of searching for these b-hadron decay modes and analysing their resonant components using the current and future data samples from the LHCb experiment.