%0 Journal Article
%T Strangeness and charm in nuclear matter
%A Tolos, L.
%A Cabrera, D.
%A Garcia-Recio, C.
%A Molina, R.
%A Nieves, J.
%A Oset, E.
%A Ramos, A.
%A Romanets, O.
%A Salcedo, L. L.
%J Nuclear Physics A
%D 2013
%V 914
%I Elsevier Science Bv
%@ 0375-9474
%G English
%F Tolos_etal2013
%O WOS:000324847700066
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1598), last updated on Fri, 15 Nov 2013 10:57:15 +0000
%X The properties of strange (K, (K) over bar and (K) over bar*) and open-charm (D, (D) over bar and D*) mesons in dense matter are studied using a unitary approach in coupled channels for meson-baryon scattering. In the strangeness sector, the interaction with nucleons always comes through vector-meson exchange, which is evaluated by chiral and hidden gauge Lagrangians. For the interaction of charmed mesons with nucleons we extend the SU(3) Weinberg-Tomozawa Lagrangian to incorporate spin-flavor symmetry and implement a suitable flavor symmetry breaking. The in-medium solution for the scattering amplitude accounts for Pauli blocking effects and meson self-energies. On one hand, we obtain the K, (K) over bar and (K) over bar* spectral functions in the nuclear medium and study their behaviour at finite density, temperature and momentum. We also make an estimate of the transparency ratio of the gamma A -> K+ K*(-) A' reaction, which we propose as a tool to detect in-medium modifications of the (K) over bar* meson. On the other hand, in the charm sector, 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. The properties of these states in matter are analyzed and their influence on the open-charm meson spectral functions is studied. We finally discuss the possible formation of D-mesic nuclei at FAIR energies.
%K Strange mesons
%K Transparency ratio
%K Dynamically-generated baryon resonances
%K Open charm in matter
%K D-mesic nuclei
%R 10.1016/j.nuclphysa.2013.01.018
%U http://arxiv.org/abs/1211.7286
%U https://doi.org/10.1016/j.nuclphysa.2013.01.018
%P 461-471