Speaker
Jenifer Nebreda Manjon
(Yukawa Institute for Theoretical Physics, Kyoto University)
Description
We study the in-medium corrections to the neutral pion decay into two photons. For the calculation we use in-medium chiral perturbation theory. We take into account both the wave function renormalization and the medium correction to the one-particle irreducible vertex. Since it was previously shown that there are no medium corrections to the vertex up to O(p^5), that is, linear density in the density expansion, here we go up to next to linear order, or O(p^6). We study the dependence of the corrections with the nuclear density and find that, at normal nuclear density, the corrections to the decay width are of the order of a few percent.
Author
Jenifer Nebreda Manjon
(Yukawa Institute for Theoretical Physics, Kyoto University)
Co-author
Dr
Daisuke Jido
(Tokyo Metropolitan University)
