Calculates branching ratios, decay asymmetries, and CP violations for doubly charmed baryon decays to singly charmed baryons and vector mesons by evaluating full real and imaginary parts from final-state rescattering triangle diagrams.
Discovery Potentials of Doubly Charmed Baryons
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abstract
The existence of doubly heavy flavor baryons has not been well established experimentally so far. In this Letter we systematically investigate the weak decays of the doubly charmed baryons, $\Xi_{cc}^{++}$ and $\Xi_{cc}^{+}$, which would be helpful for experimental searches for these particles. The branching fractions are studied under the factorization hypothesis for the short-distance contributions and considering the rescattering effect for the long-distance contributions which are significantly enhanced. Comparing all the decay modes, we recommend the processes of $\Xi_{cc}^{++}\to \Lambda_c^+K^-\pi^+\pi^+$ and $\Xi_c^+\pi^+$ as the first priority for experiments to search for the doubly heavy baryons.
fields
hep-ph 2years
2026 2verdicts
UNVERDICTED 2representative citing papers
Rescattering enhances the anti-D0 Lambda branching fraction by two orders of magnitude and produces large direct CP asymmetries (0.28 and -0.14) in Lambda_b to Lambda D channels.
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Final-state rescattering mechanism of doubly-charmed baryon decays: $\mathcal{B}_{cc}\to\mathcal{B}_{c}V$
Calculates branching ratios, decay asymmetries, and CP violations for doubly charmed baryon decays to singly charmed baryons and vector mesons by evaluating full real and imaginary parts from final-state rescattering triangle diagrams.
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Study of $\Lambda^0_b \to \Lambda D$ decays with the rescattering mechanism
Rescattering enhances the anti-D0 Lambda branching fraction by two orders of magnitude and produces large direct CP asymmetries (0.28 and -0.14) in Lambda_b to Lambda D channels.