Journal Article

Predictions for Ξ b - → π - ( D s - ) Ξ c 0 ( 2790 ) Ξ c 0 ( 2815 ) and Ξ b - → ν ¯ l l Ξ c 0 ( 2790 ) Ξ c 0 ( 2815 )

Oset, E, Pavao, R P, Wei-Hong, Liang, Nieves, J

2017

Overview

We have performed calculations for the nonleptonic Ξb-→π-Ξc0(2790)J=12 and Ξb-→π-Ξc0(2815)J=32 decays and the same reactions replacing the π- by a Ds-. At the same time we have also evaluated the semileptonic rates for Ξb-→ν¯llΞc0(2790) and Ξb-→ν¯llΞc0(2815). We look at the reactions from the perspective that the Ξc0(2790) and Ξc0(2815) resonances are dynamically generated from the pseudoscalar–baryon and vector–baryon interactions. We evaluate ratios of the rates of these reactions and make predictions that can be tested in future experiments. We also find that the results are rather sensitive to the coupling of the Ξc∗ resonances to the D∗Σ and D∗Λ components.

• Publisher: Springer Nature B.V
• Subject: Baryons