To access the full text documents, please follow this link: http://hdl.handle.net/2445/15242
| dc.contributor | Universitat de Barcelona |
|---|---|
| dc.contributor.author | Tolós Rigueiro, Laura |
| dc.contributor.author | Molina, R. |
| dc.contributor.author | Oset Baguena, Eulogio |
| dc.contributor.author | Ramos Gómez, Àngels |
| dc.date | 2011-01-13T11:42:07Z |
| dc.date | 2011-01-13T11:42:07Z |
| dc.date | 2010-10-29 |
| dc.identifier.citation | 598753 |
| dc.identifier.uri | http://hdl.handle.net/2445/15242 |
| dc.description.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. |
| dc.format | 12 p. |
| dc.format | application/pdf |
| dc.language.iso | eng |
| dc.publisher | American Physical Society |
| dc.relation | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevC.82.045210 |
| dc.relation | Physical Review C, 2010, vol. 82, núm. 4, p. 045210-1-045210-12 |
| dc.relation | http://dx.doi.org/10.1103/PhysRevC.82.045210 |
| dc.relation | info:eu-repo/grantAgreement/EC/FP7/227431/EU//HADRONPHYSICS2 |
| dc.rights | (c) American Physical Society, 2010 |
| dc.rights | info:eu-repo/semantics/openAccess |
| dc.subject | Teoria de camps (Física) |
| dc.subject | Properties of specific particles |
| dc.subject | General theory of fields and particles |
| dc.subject | Specific reactions and phenomenology |
| dc.title | (K)over-bar* mesons in dense matter |
| dc.type | info:eu-repo/semantics/article |
| dc.type | info:eu-repo/semantics/publishedVersion |
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