Recently I came across the terms signal efficiency and background rejection (for example in this paper), but I couldn't find an understandable definitions to those terms and how they are uses. Specifically, I couldn't find a mathematical definition.

I'd appreciate an explanation with an example or a reference.

Recently I came across the terms signal efficiency and background rejection (for example in this paper), but I couldn't find an understandable definitions to those terms and how they are used. Specifically, I couldn't find a mathematical definition.

I'd appreciate an explanation with an example or a reference.

Recently I came across the terms signal efficiency and background rejection (for example in this paper), but I couldn't find an understandable definitions to those terms and how they are uses. Specifically, I couldn't find a mathematical definition.

I'd appreciate an explanation with an example or a reference.

Recently I came across the terms signal efficiency and background rejection (for example in this paper), but I couldn't find an understandable definitions to those terms and how they are uses. Specifically, I couldn't find a mathematical definition.

I'd appreciate an explanation with an example or a reference.