Structure of charmed baryons studied by pionic decays

Abstract

We investigate the decays of the charmed baryons aiming at the systematic understanding of hadron internal structures based on the quark model by paying attention to heavy quark symmetry. We evaluate the decay widths from the one pion emission for the known excited states, Λ

Three-Body Decay of Λc*(2595) and Λc*(2625Arifi1, Nagahiro2 2017Phys. Rev. D192270View full textAdd to dashboardCite

“…The detailed calculation can be found in Ref. [9]. Likewise, the matrix elements derived from effective Lagrangians are…”

“…In the quark model of harmonic oscillator, there are three model parameters; m the light quark mass, M the heavy quark mass, and k the spring constant [9]. The quark masses are fixed to be…”

“…This is the issue that we would like to address in this paper. Recently, two of the present authors [9] have studied two-body decays of charmed baryons. They have shown that the ratio of the Λ * can also extract the information on the closed channel.…”

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Physics in J-PARC Hadron-Hall Extension

“…This tells us quark correlations in excited baryons can be disentangled by introducing heavy flavors. The nature of internal quark correlations would be reflected in their masses (excitation energies), decay partial widths (decay branching ratios) [6], and their production rates [7].…”