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Loop regularization (LORE) is a novel regularization scheme in modern quantumfield theories. It makes no change to the spacetime structure and respects bothgauge symmetries and supersymmetry. As a result, LORE should be useful incalculating loop corrections in supersymmetry phenomenology. To demonstratefurther its power, in this article we revisit in the light of LORE the oldissue of the absence of quadratic contributions (quadratic divergences) insoftly broken supersymmetric field theories. It is shown explicitly by Feynmandiagrammatic calculations that up to two loops the Wess-Zumino model with softsupersymmetry breaking terms (WZ' model), one of the simplest models with theexplicit supersymmetry breaking, is free of quadratic contributions. All thequadratic contributions cancel with each other perfectly, which is consistentwith results dictated by the supergraph techniques.

Quadratic Contributions of Softly Broken Supersymmetry in the Light of Loop Regularization