Some inequalities among hadron masses

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Some rigorous inequalities governing hadron masses in QCD are proved. One states that the electromagnetic mass shift of the pion is positive. The other states that if mAB̄ is the mass of the lightest meson made from a quark of type A and an antiquark of type B, then-under conditions such that annihilation into gluons can be ignored-2mAB̄>~mAĀ+mBB̄. These inequalities agree with experimental data and have analogs for arbitrary vectorlike gauge theories. The first inequality has applications to the vacuum alignment problem in vectorlike technicolor theories.

Original languageEnglish (US)
Pages (from-to)2351-2354
Number of pages4
JournalPhysical review letters
Issue number26
StatePublished - 1983

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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