γ Production and Polarization in pp̅ Collisions at √s= 1.8 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

4-22-2002

Comments

Published by American Physical Society. Phys. Rev. Lett. 89, 041802 (2002). http://prl.aps.org. Copyright © 2002 American Physical Society. Permission to use.

Abstract

We report on measurements of the ϒ(1S), ϒ(2S), and ϒ(3S) differential cross sections (d²σ/dp_Tdy)|y|pp̅ collisions at √s = 1.8 TeV using a sample of 77±3 pb^-1 collected by the collider detector at Fermilab. The three resonances were reconstructed through the decay ϒ→μ⁺μ^-. The measured angular distribution of the muons in the ϒ(1S) rest frame is consistent with unpolarized meson production.