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arXiv · 0705.4046

Meson-baryon sigma terms in QCD Sum Rules

G. Erkol·M. Oka
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Abstract

We evaluate the pion-nucleon and the pion-Delta sigma terms by employing the method of quantum chromodynamics (QCD) sum rules. The obtained value of the pion-nucleon sigma term is compatible with the larger values already anticipated by the recent calculations. It is also found that the pion-Delta sigma term is as large as the pion-nucleon sigma term.

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G. Erkol, M. Oka. 2007-11-08. Meson-baryon sigma terms in QCD Sum Rules. https://doi.org/10.1016/j.physletb.2007.11.060

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