Literatur

439-1439-1439-1transitions: model-independent bounds on invariant form factors

“…Recently it has been shown how to obtain model-independent bounds on the formfactors that describe semileptonic decays of heavy hadrons. In what follows, we extend previous results on mesonic transitions B → D, D * [1-3] and the baryonic transitions Λ b → Λ c [4] to the baryonic transitions Ω b → Ω c , Ω * c . 2.…”

“…The result for the invariant form factors (which are defined in full analogy with refs. [2,3,4]) are too lenghty to be presented here. What is really of interest is the zero-recoil projection of these quantaties onto the helicity structure functions.…”

“…Here R a stands for the Ω b state in HQET (see Refs. [5][6][7][8][9] ). The constants u 1 , u 2 ,u 3 , appearing in Eq.…”

“…( for further details see ref. [4] ). The exact expressions of Ω c and Ω * c contributions to this quantities for the case of axial and vector current are presented in the Appendix.…”