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arXiv · 1206.3444

Charmed baryon resonances with heavy-quark spin symmetry

O. Romanets·L. Tolos·C. Garcia-Recio·J. Nieves·L. L. Salcedo·R. G. E. Timmermans
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Abstract

Charmed baryon resonances that are generated dynamically are studied within a unitary baryon-meson coupled-channel model, which incorporates heavy-quark spin symmetry. The extension of the SU(3) Weinberg-Tomozawa chiral Lagrangian to SU(8) spin-flavor symmetry plus a suitable symmetry breaking is used. The model produces resonances with negative parity from s-wave interaction of pseudoscalar and vector mesons with $1/2^+$ and $3/2^+$ baryons. Some of our dynamically generated states can be readily assigned to resonances found experimentally, while others do not have a straightforward identification and require the compilation of more data and also refinements of the model.

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O. Romanets, L. Tolos, C. Garcia-Recio, J. Nieves, L. L. Salcedo, R. G. E. Timmermans. 2012-06-15. Charmed baryon resonances with heavy-quark spin symmetry. https://arxiv.org/abs/1206.3444

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