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

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arxiv 1012.5935 v3 pith:VXSKPQBL submitted 2010-12-29 hep-ph

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

classification hep-ph
keywords baryonsspin--1spin--3sextettransitionsheavylightmesons
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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.

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