TY  - JOUR
AU  - Tolos, L.
AU  - Molina, R.
AU  - Oset, E.
AU  - Ramos, A.
PY  - 2010
DA  - 2010//
TI  - (K)over-bar* mesons in dense matter
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 045210
EP  - 12pp
VL  - 82
IS  - 4
PB  - Amer Physical Soc
AB  - We study the properties of (K) over bar* mesons in nuclear matter using a unitary approach in coupled channels within the framework of the local hidden gauge formalism and incorporating the (K) over bar pi decay channel in matter. The in-medium (K) over bar *N interaction accounts for Pauli blocking effects and incorporates the (K) over bar* self-energy in a self-consistent manner. We also obtain the (K) over bar* (off-shell) spectral function and analyze its behavior at finite density and momentum. At a normal nuclear matter density, the (K) over bar* meson feels a moderately attractive potential, while the (K) over bar* width becomes five times larger than in free space. We estimate the transparency ratio of the gamma A -> K+K*(-) A` reaction, which we propose as a feasible scenario at the present facilities to detect changes in the properties of the (K) over bar* meson in nuclear medium.
SN  - 0556-2813
UR  - http://arxiv.org/abs/1006.3454
UR  - https://doi.org/10.1103/PhysRevC.82.045210
DO  - 10.1103/PhysRevC.82.045210
LA  - English
N1  - ISI:000283648400011
ID  - Tolos_etal2010
ER  -