Precise Relations between the Spectra of Vector and Axial-Vector Mesons

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Abstract

Two sum rules are derived, relating moments of the spectral functions of the vector and axial-vector currents. If it is assumed that the and A1 mesons dominate these moments, then their masses must be in the ratio m₀₁{m_}=2, in very good agreement with experiment.

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Cite This Study

Steven Weinberg (Mon,) studied this question.

synapsesocial.com/papers/6a0f0bed37aeb0126447c3c7 https://doi.org/https://doi.org/10.1103/physrevlett.18.507

Discussion

Journals

Physical Review Letters

Institutions

University of California, Berkeley

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