Measurement of Prompt Charm Meson Production Cross Sections in pp̅ Collisions at √s=1.96 TeV

Authors

• Darin Acosta, University of FloridaFollow
• Kenneth A. Bloom, University of Nebraska-LincolnFollow
• Collider Detector at Fermilab Collaboration

Document Type

Article

Date of this Version

12-12-2003

Comments

Published by American Physical Society. Phys. Rev. Lett. 91, 241804 (2003). http://prl.aps.org. Copyright © 2003 American Physical Society. Permission to use.

Abstract

We report on measurements of differential cross sections d /dpT for prompt charm meson production in pp̅ collisions at √s=1.96 TeV using 5.8±0.3 pb^-1 of data from the CDF II detector at the Fermilab Tevatron. The data are collected with a new trigger that is sensitive to the long lifetime of hadrons containing heavy flavor. The charm meson cross sections are measured in the central rapidity region |y|≤1 in four fully reconstructed decay modes: D⁰→K^- π⁺, D*+→D⁰ π⁺, D⁺→K^- π⁺ π⁺, D_s⁺→ Φπ⁺, and their charge conjugates. The measured cross sections are compared to theoretical calculations.