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arXiv · 1210.1007

Charmed mesons in nuclei with heavy-quark spin symmetry

L. Tolos·C. Garcia-Recio·J. Nieves·O. Romanets·L. L. Salcedo
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Abstract

We study the properties of charmed pseudoscalar and vector mesons in dense matter within a unitary meson-baryon coupled-channel model which incorporates heavy-quark spin symmetry. This is accomplished by extending the SU(3) Weinberg-Tomozawa Lagrangian to SU(8) spin-flavor symmetry and implementing a suitable flavor symmetry breaking. Several resonances with negative parity are generated dynamically by the s-wave interaction between pseudoscalar and vector meson multiplets with $1/2^+$ and $3/2^+$ baryons. Those states are then compared to experimental data as well as theoretical models. Next, Pauli-blocking effects and meson self-energies are introduced in a self-consistent manner to obtain the open-charm meson spectral functions in a dense nuclear environment. We finally discuss the formation of $D$-mesic nuclei.

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L. Tolos, C. Garcia-Recio, J. Nieves, O. Romanets, L. L. Salcedo. 2012-10-03. Charmed mesons in nuclei with heavy-quark spin symmetry. https://doi.org/10.1007/s00601-012-0533-9

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