The Off Shell ρ − ω Mixing in the QCD Sum Rules
نویسندگان
چکیده
The q 2 dependence of the ρ − ω mixing amplitude is analyzed with the use of the QCD sum rules and the dispersion relation. Going off shell the mixing decreases, changes sign at q 2 ≃ 0.4m 2 ρ > 0 and is negative in the space like region. Implications of this result to the isospin breaking part of the nuclear force are discussed.
منابع مشابه
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تاریخ انتشار 2008