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Nuclear medium effects on the (K)over-bar* meson

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	Tolós Rigueiro, Laura; Molina Peralta, Raquel; Oset Báguena, Eulogio Perfil; Ramos Gómez, Àngels
	This document is a artículoDate2012
	Este documento está disponible también en : http://hdl.handle.net/10550/46687
	The K¯∗ meson in dense matter is analyzed by means of a unitary approach in coupled channels based on the local hidden gauge formalism. The K¯∗ self-energy and the corresponding K¯∗ spectral function in the nuclear medium are obtained. We observe that the K¯∗ develops a width in matter up to five times bigger than in free space. We also estimate the transparency ratio of the γA→K+K∗−A′ reaction. This ratio is an excellent tool to detect experimentally modifications of the K¯∗ meson in dense matter.
	Tolós Rigueiro, Laura Molina Peralta, Raquel Oset Báguena, Eulogio Ramos Gómez, Àngels 2012 Nuclear medium effects on the (K)over-bar* meson Nuclear Physics A 881 SI 169 177
	http://dx.doi.org/10.1016/j.nuclphysa.2011.12.011