Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/15242
Title: (K)over-bar* mesons in dense matter
Author: Tolós Rigueiro, Laura
Molina, R.
Oset Baguena, Eulogio
Ramos Gómez, Àngels
Keywords: Teoria de camps (Física)
Properties of specific particles
General theory of fields and particles
Specific reactions and phenomenology
Issue Date: 29-Oct-2010
Publisher: American Physical Society
Abstract: We study the properties of (K) over bar* mesons in nuclear matter using a unitary approach in coupled channels within the framework of the local hidden gauge formalism and incorporating the (K) over bar pi decay channel in matter. The in-medium (K) over bar *N interaction accounts for Pauli blocking effects and incorporates the (K) over bar* self-energy in a self-consistent manner. We also obtain the (K) over bar* (off-shell) spectral function and analyze its behavior at finite density and momentum. At a normal nuclear matter density, the (K) over bar* meson feels a moderately attractive potential, while the (K) over bar* width becomes five times larger than in free space. We estimate the transparency ratio of the gamma A -> K+K*(-) A` reaction, which we propose as a feasible scenario at the present facilities to detect changes in the properties of the (K) over bar* meson in nuclear medium.
Note: Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevC.82.045210
It is part of: Physical Review C, 2010, vol. 82, núm. 4, p. 045210-1-045210-12
Related resource: http://dx.doi.org/10.1103/PhysRevC.82.045210
URI: http://hdl.handle.net/2445/15242
Appears in Collections:Publicacions de projectes de recerca finançats per la UE
Articles publicats en revistes (Física Quàntica i Astrofísica)

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