Determining hybrid content of heavy quarkonia using lattice nonrelativistic QCD

Details Determining hybrid content of heavy quarkonia using lattice nonrelativistic QCD Determining hybrid content of heavy quarkonia using lattice nonrelativistic QCD

2001-09-28

arxiv.org/abs/hep-lat/0110001v1

Nucl.Phys.Proc.Suppl. 106 (2002) 382-384

Physics

High Energy Physics

High Energy Physics - Lattice

Lattice2001(heavyquark) ; 3 pages, 2 figures

Scientific paper

Using lowest-order lattice NRQCD to create heavy meson propagators and applying the spin-dependent interaction, $c_B^{} \frac{-g}{2m_q}\vec\sigma\cdot\vec{B}$, at varying intermediate time slices, we compute the off-diagonal matrix element of the Hamiltonian for the quarkonium-hybrid two-state system. Diagonalizing this two-state Hamiltonian, the admixture of hybrid ($|Q\bar{Q}g>$) in the ground state is found. We present results from a set of quenched lattices with an interpolation in quark mass to match the bottomonium spectrum.

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