https://doi.org/10.1140/epjc/s10052-020-7635-1
Regular Article - Theoretical Physics
Light-cone sum rules analysis of
weak decays
1
INPAC, SKLPPC, MOE KLPPC, School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, 200240, China
2
Helmholtz-Institut für Strahlen- und Kernphysik and Bethe Center for Theoretical Physics, Universität Bonn, 53115, Bonn, Germany
* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
24
October
2019
Accepted:
8
January
2020
Published online:
24
January
2020
Abstract
As a continuation of our previous work, we investigate the weak decays of doubly-heavy baryons
into sextet
with light-cone sum rules. We calculate the form factors for these decays with the parallel light-cone distribution amplitudes of
. Numerical results of these form factors are used to predict the decay widths and branching ratios of the corresponding semi-leptonic processes. Parametric uncertainties and theoretical analyses are also given in detail. We find that the decay widths of
and
decays are several orders of magnitude larger than those of
decays.
© The Author(s), 2020

