Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Charmed-meson (D+, D_s and D0) production above 100 GeV #77

Closed
candreop opened this issue Nov 22, 2019 · 0 comments
Closed

Charmed-meson (D+, D_s and D0) production above 100 GeV #77

candreop opened this issue Nov 22, 2019 · 0 comments
Assignees

Comments

@candreop
Copy link
Member

candreop commented Nov 22, 2019

Issue reported by Emircan Elikkaya and Murat Ali Guler (SHiP):

Although charm-production cross section looks correct, we have seen that charmed-meson(D+, D_s and D0) production is strongly suppressed after about 100 GeV, only lambda_C+ is produced after 100 GeV.

The issue here is that the input charm fraction tables used by the charm hadronization code go only up to 100 GeV. Since the charm fractions are nearly flat / change very weakly with energy, the proposed solution for an event with neutrino energy Enu, is to use min(Enu, 100.) when looking up that table.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants