Baryonic mixing and production of hypernuclei

We address mixing of different baryonic states in hypernuclei and formation of strange nuclei of various kinds. First, production of neutron-rich Lambda hypernuclei by the (pi-,K+) reaction is considered, and one-step production via baryonic admixtures in the final as well as in the initial state is discussed. Then, the Lambda Lambda - Xi N mixing in p shell Lambda Lambda hypernuclei exemplified by $^{12}_{\Lambda\Lambda}$Be is studied. The last topic is devoted to production of Theta pentaquark nuclei (pentanuclei). We suggest a type of reactions with recoilless Theta production.