A triangle singularity in Lambda_c+ -> Lambda pi+ pi+ pi- enhances the dynamically generated Sigma*(1430), yielding a 1434 MeV pi+Lambda peak and a predicted 1875 MeV pi-Sigma* bump with branching fraction 3.5e-4.
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The $\Lambda_c^+\to\Lambda\pi^+\pi^+\pi^-$ reaction, and a triangle singularity producing the $\Sigma^*(1430)$ state
A triangle singularity in Lambda_c+ -> Lambda pi+ pi+ pi- enhances the dynamically generated Sigma*(1430), yielding a 1434 MeV pi+Lambda peak and a predicted 1875 MeV pi-Sigma* bump with branching fraction 3.5e-4.