English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Open

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

We investigate the in-medium properties of strange vector mesons ($K^*$ and$\bar K^*$) in dense and hot nuclear matter based on chirally motivated modelsof the meson selfenergies. We parameterise medium effects as density ortemperature dependent effective masses and widths, obtain the vector mesonspectral functions within a Breit-Wigner prescription (as often used intransport simulations) and study whether such an approach can retain theessential features of full microscopic calculations. For $\mu_B\ne 0$ themedium corrections arise from $\bar K^* (K^*) N$ scattering and the $\bar K^*(K^*) \to \bar K (K) \pi$ decay mode (accounting for in-medium $\bar K (K)$dynamics). We calculate the scattering contribution to the $K^*$ selfenergybased on the hidden local symmetry formalism for vector meson nucleoninteractions, whereas for the $\bar K^*$ selfenergy we implement recent resultsfrom a selfconsistent coupled-channel determination within the same approach.For $\mu_B\simeq 0$ and finite temperature we rely on a phenomenologicalapproach for the kaon selfenergy in a hot pionic medium consistent with chiralsymmetry, and evaluate the $\bar K^* (K^*) \to \bar K (K) \pi$ decay width. Theemergence of a mass shift at finite temperature is studied with a dispersionrelation over the imaginary part of the vector meson selfenergy.

Properties of strange vector mesons in dense and hot matter