Speaker
Nico Gubernari
(technische universität münchen)
Description
QCD light-cone sum rules (LCSRs) are a method to calculate the relevant hadronic matrix elements in exclusive $b$-quark decays. I focus on the LCSRs with $B$ or $\Lambda_b$ distribution amplitudes. The versatility of this method allows to apply it to a wide variety of decays, especially to those where lattice QCD calculations are not available yet.
In this spirit, I present a first calculation of the $B\to D^{**}$ form factors, and an estimate of the ``annhilation-like'' contributions in $\Lambda_b\to\Lambda \ell\ell$ using LCSRs.
Author
Nico Gubernari
(technische universität münchen)