Associated Production of Upsilon and Weak Gauge Bosons at the Tevatron
Abstract
We calculate the rate of production of W+Upsilon and Z+Upsilon at the Tevatron. We find the cross sections at a center-of-mass energy of 1.8 TeV to be roughly 450 pb for W+Upsilon and 150 pb for Z+Upsilon. The dominant production mechanism involves the binding of a color-octet b-bbar pair into a P-wave bottomonium state which subsequently decays into Upsilon. The purely leptonic decay modes of Upsilon, W, and Z provide signatures with small backgrounds. In Run I of the Tevatron, the number of events in the purely leptonic decay channels before allowing for detector acceptances and efficiencies should be about 500 for W+Upsilon and about 60 for Z+Upsilon. We conclude that W+Upsilon events may be observable in the Run I data.
Keywords
Cite
@article{arxiv.hep-ph/9812505,
title = {Associated Production of Upsilon and Weak Gauge Bosons at the Tevatron},
author = {Eric Braaten and Sean Fleming and Jungil Lee},
journal= {arXiv preprint arXiv:hep-ph/9812505},
year = {2010}
}
Comments
8 pages, Latex, One figure included as eps file. Minor changes made. Version to be published