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首页> 中文期刊> 《中国物理快报：英文版》 >ON THE VECTOR MESON DOMINATE HYPOTHESIS AND THE R_(A)=σ^(A)_(L )/σ^(A)_(T) VALUE IN ELECTRON-NUCLEUS DEEP INELASTIC SCATTERING

ON THE VECTOR MESON DOMINATE HYPOTHESIS AND THE R_(A)=σ^(A)_(L )/σ^(A)_(T) VALUE IN ELECTRON-NUCLEUS DEEP INELASTIC SCATTERING

         
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摘要

It is argued that the longitudinal part of space-like photon in its Breit frame is unable to transform into vector meson.Starting from this argument and adding a small amount of diquark component into the nucleon structure functions in nuclei,the A dependence of the R_(A)=σ^(A)_(L )/σ^(A)_(T) value observed in electron nucleus DIS by the SLAC Group is explained.

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