# Fock-space projection operators for semi-inclusive final states

## TL;DR

This paper introduces explicit Fock-space projection operators designed for realistic semi-inclusive scattering experiments, efficiently summing over unobserved particles and accounting for non-emission regions.

## Contribution

It provides novel explicit expressions for Fock-space projection operators tailored to semi-inclusive states in scattering, enhancing theoretical modeling capabilities.

## Key findings

- Operators automatically sum over unobserved quanta
- Account for non-emission into specific momentum regions
- Facilitate more accurate semi-inclusive state analysis

## Abstract

We present explicit expressions for Fock-space projection operators that correspond to realistic final states in scattering experiments. Our operators automatically sum over unobserved quanta and account for non-emission into sub-regions of momentum space.