Comment on "New Limits on Intrinsic Charm in the Nucleon from Global Analysis of Parton Distributions"

TL;DR

This paper provides a critical commentary on a previous study that claimed to set new limits on intrinsic charm within the nucleon, analyzing the methodology and conclusions of that work.

Contribution

It offers an in-depth critique of the methods and assumptions used in the original analysis to evaluate the validity of the new limits on intrinsic charm.

Findings

Highlights potential limitations in the original analysis

Questions the robustness of the claimed limits on intrinsic charm

Suggests alternative interpretations of the data

Abstract

A Comment on the Letter by P. Jimenez-Delgado, T.J. Hobbs, J.T. Londergan, and W. Melnitchouk, Phys. Rev. Lett. 114, 082002 (2015).