Spin--3/2 to spin--1/2 heavy baryons and pseudoscalar mesons transitions in QCD

Understand

The strong coupling constants of light pseudoscalar mesons with spin--3/2 and spin--1/2 heavy baryons are calculated in the framework of light cone QCD sum rules.

• It is shown that each class of transitions among members of the sextet spin--3/2 to sextet spin--1/2 baryons and that of the sextet spin--3/2 to spin--1/2 anti--triplet baryons is described by only one invariant function.
• We also estimate the widths of kinematically allowed transitions.
• Our results on decay widths are in good agreement with the existing experimental data, as well as predictions of other nonperturbative approaches.