Measurement of the B⁺ total cross section and B⁺ differential cross section dσ/dp_T 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

Date of this Version

3-1-2002

Comments

Published by American Physical Society. Phys. Rev. D 65, 052005 (2002). http://prd.aps.org. Copyright © 2002 American Physical Society. Permission to use.

Abstract

We present measurements of the B⁺ meson total cross section and differential cross section dσ/dp_T. The measurements use a 98±4 pb^-1 sample of pp̅ collisions at √s=1.8 TeV collected by the CDF detector. Charged B meson candidates are reconstructed through the decay B^±→J/ψK^± with J/ψ→μ⁺μ^-. The total cross section, measured in the central rapidity region |y|p_T(B)> 6.0 GeV/c is 3.6±0.6 (stat⊕ syst), μb. The measured differential cross section is  substantially larger than typical QCD predictions calculated to next-to-leading order.