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Charmed Mesons in Nuclei with Heavy-Quark Spin Symmetry

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Charmed Mesons in Nuclei with Heavy-Quark Spin Symmetry

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Tolós Rigueiro, Laura; García Recio, Carmen; Nieves Pamplona, Juan Miguel; Romanets, Olena; Salcedo, Lorenzo Luis

Aquest document és un/a article, creat/da en: 2013

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 incorporate spin-flavor symmetry and implement 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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