The Chiral Loop Expansion of the Nonleptonic Weak Interactions of Mesons
Aug, 198948 pages
Published in:
- Nucl.Phys.B 346 (1990) 17-64
- Published: 1990
Report number:
- PSI-PR-89-18,
- ETH-TH-89-42
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Abstract: (Elsevier)
In the framework of the effective low-energy chiral lagrangian, we determine the one-loop effective action describing the strangeness-changing nonleptonic weak interactions of the pseudoscalar mesons. The effective action includes the counterterms necessary to accomodate the ultraviolet divergences arising from the loops, which we calculate. We obtain a closed expression for the regularized one-loop effective action sufficient to describe amplitudes involving up to four mesons. Finally, we discuss the observability of the tadpole caused by weak interactions.- weak interaction: flavor changing
- flavor changing: weak interaction
- effective Lagrangian
- pseudoscalar meson
- perturbation theory: chiral
- renormalization
- Feynman graph: tadpole
References(49)
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- [2]
- [2]
- [3]
- [4]
- [4]
- [4]
- [4]
- [5]
- [5]
- [5]
- [6]
- [6]
- [6]
- [6]
- [7]
- [7]
- [7]
- [7]
- [8]
- [9]
- [10]
- [11]
- [12]
- [13]