We analyze the effects of jet algorithms on each factorized part of the dijet cross sections in e + e − annihilation using the soft-collinear effective theory. The jet function and the soft function with a cone-type jet algorithm and the Sterman-Weinberg jet algorithm are computed to nextto-leading order in α s , and are shown to be infrared finite using pure dimensional regularization. The integrated and unintegrated jet functions are presented, and compared with other types of jet functions. *

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