Searches for Λ0 b and Ξ0 b decays to K0 spπ- and K 0 spK- final states with first observation of the Λ0 b → k0 sp7π - decay
Title: Searches for Λ0 b and Ξ0 b decays to K0 spπ- and K 0 spK- final states with first observation of the Λ0 b → k0 sp7π - decay Authors: R, Aaij, B, Adeva M., Adinolfi A, Affolder Z, Ajaltouni ... Keywords: B physics;;Branching fraction;Flavor physics;Hadron-hadron scattering Issue Date: 2014 Publisher: Journal of High Energy Physics Citation: Scopus URI: http://link.springer.com/article/10.1007%2FJHEP04%282014%29087 http://repository.vnu.edu.vn/handle/VNU_123/34206 A search for previously unobserved decays of beauty baryons to the final states K0 spπ- and K0 spK- is reported. The analysis is based on a data sample corresponding to an integrated luminosity of 1.0 fb- of pp collisions. The Λ0 b → ̄K pπ- decay is observed with a significance of 8.6σ, with branching fraction (Equation Presented), where the uncertainties are statistical, systematic, from the ratio of fragmentation fractions f Λ 0 b/fd, and from the branching fraction o...