Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8195268 | Physics Letters B | 2008 | 8 Pages |
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.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
G. Erkol, M. Oka,