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arXiv · 1111.5763

Nuclear medium effects on the $\bar K^*$ meson

L. Tolos·R. Molina·E. Oset·A. Ramos
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Abstract

The $\bar K^*$ meson in dense matter is analyzed by means of a unitary approach in coupled channels based on the local hidden gauge formalism. The $\bar K^*$ self-energy and the corresponding $\bar K^*$ spectral function in the nuclear medium are obtained. We observe that the $\bar K^*$ develops a width in matter up to five times bigger than in free space. We also estimate the transparency ratio of the $γA \to K^+ K^{*-} A^\prime$ reaction. This ratio is an excellent tool to detect experimentally modifications of the $\bar K^*$ meson in dense matter.

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L. Tolos, R. Molina, E. Oset, A. Ramos. 2011-11-24. Nuclear medium effects on the $\bar K^*$ meson. https://doi.org/10.1016/j.nuclphysa.2011.12.011

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