$\rho$ meson decay from the lattice
Proceedings of XXIVth International Symposium on Lattice Field Theory — PoS(LAT2006)(2006)
摘要
We present preliminary results on the $\rho$ meson decay width estimated from the scattering phase shift of the I=1 two-pion system. The phase shift is calculated by the finite size formula for non-zero total momentum frame (the moving frame) derived by Rummukainen and Gottlieb, using the $N_f=2$ improved Wilson fermion action at $m_\pi/m_\rho=0.41$ and $L=2.53 {\rm fm}$.
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关键词
high energy physics,phase shift
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