η- mixing in U(3) chiral perturbation theory |
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Authors: | N. Beisert B. Borasoy |
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Affiliation: | Physik Department, Technische Universit?t München, D-85747 Garching, Germany, DE
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Abstract: | We investigate η- mixing in infrared regularized U(3) chiral perturbation theory by calculating the η and masses up to one-loop order. From this analysis it becomes obvious that even at leading order η--mixing does not obey the usually assumed one-mixing-angle scheme if large N c counting rules are not employed. Received: 12 March 2001 / Accepted: 4 July 2001 |
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Keywords: | PACS. 12.39.Fe Chiral Lagrangians – 14.40.-n Mesons |
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