1109.5219 (Zhi-Gang Wang)

Analysis of mass modifications of the vector and axial-vector heavy
mesons in the nuclear matter with the QCD sum rules    [PDF]

Zhi-Gang Wang

In this article, we calculate the mass modifications of the vector and axial-vector mesons $D^*$, $B^*$, $D_1$ and $B_1$ in the nuclear matter with the QCD sum rules, and obtain the mass-shifts $\delta M_{D^*}=-71\,\rm{MeV}$, $\delta M_{B^*}=-380\,\rm{MeV}$, $\delta M_{D_1}=72\,\rm{MeV}$, $\delta M_{B_1}=264\,\rm{MeV}$, and the scattering lengths $a_{D^*}=-1.07\,\rm{fm}$, $a_{B^*}=-7.17\,\rm{fm}$, $a_{D_1}=1.15\,\rm{fm}$ and $a_{B_1}=5.03\,\rm{fm}$ for the $D^*N$, $B^*N$, $D_1N$ and $B_1N$ interactions, respectively.

View original: http://arxiv.org/abs/1109.5219