Extracting meson properties in nuclear matter from pA reactions

pA反応から抽出する核物質における中間子の性質

Gubler, P. 

Gubler, P.

There is presently no consensus on how the meson mass and width will change once it is put in a dense environment such as nuclear matter. While many theoretical works exist, connecting them with experimental measurements remains non-trivial task, as the meson in nuclear matter is usually produced in relatively high-energy pA reactions, which are generally on-equilibrium processes. In this presentation, the status of recent theoretical research related to the behavior of the meson in nuclear matter is reviewed, including works based on QCD sum rules and ongoing transport simulations of pA reactions in which the meson is produced in nuclei, focusing on observables that will be measured at the J-PARC E16 experiment and related recent measurements at ALICE and HADES.