Terminology/Reference: Stochatic domination with "slack"

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I'm looking for the name of the following (well-known?) property, or usage of it: Let $X,Y$ be random variables (or distributions) over $\mathbb{R}$. What is the name of following "dominance with slack $L$": $$ \Pr[X > c] \leq L \cdot \Pr[Y > c] $$