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Tensor Charge of the Nucleon in Lattice QCD | | S. Aoki
; M. Doui
; T. Hatsuda
; Y. Kuramashi
; | | Date: |
22 Aug 1996 | | Journal: | Phys.Rev. D56 (1997) 433-436 | | Subject: | hep-lat hep-ph | | Affiliation: | U. Tsukuba) and Y. Kuramashi (KEK | | Abstract: | First results of lattice QCD simulation on the nucleon tensor-charge $delta q$ are presented. From the quenched QCD simulations with the Wilson quark action at $eta = 5.7$ on a 16$^3 imes$ 20 lattice and on a $12^3 imes 20$ lattice, we find (i) the connected part $delta q_{con.}$ is determined with small statistical error, (ii) the disconnected part $delta q_{dis.}$, which violates the OZI rule, is consistent with zero, and (iii) the flavor-singlet tensor charge $ delta Sigma (mu^2 = 2 {
m GeV}^2) = delta u + delta d + delta s$ takes 0.562(88) at $eta=5.7$, which is in contrast with the flavor-singlet axial charge $Delta Sigma = 0.1-0.3$. | | Source: | arXiv, hep-lat/9608115 | | Services: | Forum | Review | PDF | Favorites | |
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