S = 1 four - quark operators for domain - wall QCD
نویسنده
چکیده
Renormalization factors for ∆S = 1 four-quark operators in the effective weak Hamiltonian are perturbatively evaluated in domain-wall QCD. The one-loop corrections of ∆S = 1 four-quark operators consist of two types of diagrams: one is gluon exchange between quark lines and the other is penguin diagrams containing quark loops. Combining both contributions, our results allow a lattice calculation of the amplitude for K → ππ decays with O(g2) corrections included. 11.15Ha, 11.30Rd, 12.38Bx, 12.38Gc Typeset using REVTEX On leave from Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization(KEK), Tsukuba, Ibaraki 305-0801, Japan
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