Estimates of W-exchange contributions to cc decays
Abstract
Encouraged by recent discovery of cc++ baryon, we investigate two body non-leptonic weak decays of doubly charmed, cc, baryons. We calculate the branching ratios for CKM-favored and suppressed modes in factorization and pole model approach. We give the first estimates of nonfactorizable W-exchange contributions using pole model. We find that W-exchange contributions to cc decays being sizable can not be ignored.
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