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The OZI rule is easy formulated at the quark level as the suppression of the three-gluon annihilation [13]. At the level of real intermediate states, it is formulated as the condition of compensation of their contribution to the OZI rule violating amplitude, cf. H. J. Lipkin, Nucl. Phys. B291, 720 (1987);
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could result in some unacceptable features of the s dependence of g,p7r. As Tingen and Willrodt show, gj,p, being fixed to its physical value at the mass, grows rapidly in the spacelike region of 5 where it reaches the magnitude comparable with gpv This behavior contradicts the QCD qualitative picture which predicts that the typical OZI rule violating effects are small in this region. See [12]
-
The restriction to the only KK intermediate state, as it was assumed by R. Tingen and J. Willrodt, Nuovo Cimento A 43, 495 (1978), could result in some unacceptable features of the s dependence of g,p7r. As Tingen and Willrodt show, gj,p, being fixed to its physical value at the mass, grows rapidly in the spacelike region of 5 where it reaches the magnitude comparable with gpv This behavior contradicts the QCD qualitative picture which predicts that the typical OZI rule violating effects are small in this region. See [12].
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Tingen, R.1
Willrodt, J.2
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and Tegen and Willrodt [14], to take into account some unitarity effects in the -+pi7 amplitude. These works are restricted to the inclusion of the KK intermediate state only. Pasupathy gives the -pvr decay amplitude is purely imaginary. The latter is.ruled out by the data on the
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There were earlier attempts, cf. J. Pasupathy, Phys. Rev. D 12, 2929 (1975), and Tegen and Willrodt [14], to take into account some unitarity effects in the -+pi7 amplitude. These works are restricted to the inclusion of the KK intermediate state only. Pasupathy gives the -pvr decay amplitude is purely imaginary. The latter is.ruled out by the data on the
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Pasupathy, J.1
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