Recent progress on intrinsic charm

Abstract

Over the past $\sim 10$ years, the topic of the nucleon's nonperturbative or $\text{intrinsic}$ charm (IC) content has enjoyed something of a renaissance, largely motivated by theoretical developments involving quark modelers and PDF fitters. In this talk I will briefly describe the importance of intrinsic charm to various issues in high-energy phenomenology, and survey recent progress in constraining its overall normalization and contribution to the momentum sum rule of the nucleon. I end with the conclusion that progress on the side of calculation has now placed the onus on experiment to unambiguously resolve the proton's intrinsic charm component.

Invited talk at the Conference "XIIth Quark Confinement and the Hadron Spectrum" (Thessaloniki, Greece; 29th August - 3rd September 2016). 9 pages, 4 figures; reference added in version 2

References in corpus (3)

• Prompt neutrino fluxes from atmospheric charm
• The Charm Parton Content of the Nucleon
• New limits on intrinsic charm in the nucleon from global analysis of parton distributions

Cited by in corpus (2)

• IC at IC: IceCube can constrain the intrinsic charm of the proton
• $D$ - meson production at very forward rapidities: estimating the intrinsic charm contribution