Heavy baryon wave functions, Bakamjian-Thomas approach to form factors, and observables in ${\Lambda }_b\to {\Lambda }_c\left({\frac{1}{2}}^{\pm }\right)\ell \overline{\nu }$ transitions

D. Bečirević, A. Le Yaouanc, V. Morénas +1

Motivated by the calculation of observables in the decays ${\Lambda }_b\to {\Lambda }_c\left({\frac{1}{2}}^{\pm }\right)\ell \overline{\nu }$, as tests of Lepton Flavor Universality, we present a calculati…