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H-Dibaryon from Lattice QCD with Improved Anisotropic Actions | | Zhi-Huan Luo
; Mushtaq Loan
; Xiang-Qian Luo
; | | Date: |
22 Mar 2008 | | Abstract: | The six quark state(uuddss) called H dibaryon($J^P=0^+$,$S=-2$) has been
calculated to study its existence and stability. The simulations are performed
in quenched QCD on $8^3 imes 24$ and $16^3 imes 48$ anisotropic lattices
with Symanzik improved gauge action and Clover fermion action. The gauge
coupling is $eta=2.0$ and aspect ratio $xi=a_s/a_t=3.0$. Preliminary results
indicate that mass of H dibaryon is 2134(100)Mev on $8^3 imes 24$ lattice and
2167(59)Mev on $16^3 imes 48$ respectively. It seems that the radius of H
dibaryon is very large and the finite size effect is very obvious. | | Source: | arXiv, 0803.3171 | | Services: | Forum | Review | PDF | Favorites | |
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