Meson’s correlation functions in a nuclear medium

Article history: Received 16 March 2016 Received in revised form 11 June 2016 Accepted 20 June 2016 Available online 23 June 2016 Editor: M. Cvetič We investigate meson’s spectrum, decay constant and form factor in a nuclear medium through holographic twoand three-point correlation functions. To describe a nuclear medium composed of protons and neutrons, we consider a hard wall model on the thermal charged AdS geometry and show that due to the isospin interaction with a nuclear medium, there exist splittings of the meson’s spectrum, decay constant and form factor relying on the isospin charge. In addition, we show that the ρ-meson’s form factor describing an interaction with pseudoscalar fluctuation decreases when the nuclear density increases, while the interaction with a longitudinal part of an axial vector meson increases. © 2016 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3.