# Power corrections in semi-inclusive deep inelastic scatterings at fixed target energies

## TL;DR

This paper investigates the significance of power corrections in semi-inclusive deep inelastic scattering at fixed target energies, showing they are crucial for explaining experimental data near phase space edges.

## Contribution

It provides a quantitative analysis of power corrections, highlighting their importance in low multiplicity and edge-of-phase-space kinematics for SIDIS.

## Key findings

- Power corrections significantly improve data-theory agreement.
- They are especially important at high $P_{h_T}$ and $z_h$.
- Results motivate further studies for future experiments.

## Abstract

The COMPASS collaboration published precise data on production cross section of charged hadrons in lepton-hadron semi-inclusive deep inelastic scattering, showing almost an order of magnitude larger than next-to-leading order QCD calculations when $P_{h_T}$ and $z_h$ are sufficiently large. We explore the role of power corrections to the theoretical calculations, and quantitatively demonstrate that the power corrections are extremely important for these data when the final-state multiplicity is low and the production kinematics is near the edge of phase space. Our finding motivates more detailed studies on power corrections for upcoming experiments at Jefferson Lab, as well as the future Electron-Ion Collider.