A Review of the Intrinsic Heavy Quark Content of the Nucleon

Figure 7

(a) NLO predictions for the production of a prompt photon in association with a charm quark jet in collisions at AFTER@LHC versus the transverse momentum of the photon. Shown are results for a BHPS and a sea-like intrinsic charm using the CTEQ6.6c PDFs. For comparison, the predictions without an IC using the CTEQ6.6M PDFs are shown as well together with the uncertainty band obtained by varying the central factorization scale by a factor 2 up and down (blue, dotted curves). (b) Depicting the ratio of the curves in (a) with respect to the central prediction without intrinsic charm.

(a)

(b)