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: shiyuji92@126.com
Received:
24
October
2019
Accepted:
8
January
2020
Published online:
24
January
2020
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