Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/106671
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Type: Journal article
Title: Search for production of an Υ(1S) meson in association with a W or Z boson using the full 1.96 TeV p¯p collision data set at CDF
Other Titles: Search for production of an Upsilon(1S) meson in association with a W or Z boson using the full 1.96 TeV p -bar p collision data set at CDF
Author: Aaltonen, T.
Amerio, S.
Amidei, D.
Anastassov, A.
Annovi, A.
Antos, J.
Apollinari, G.
Appel, J.
Arisawa, T.
Artikov, A.
Asaadi, J.
Ashmanskas, W.
Auerbach, B.
Aurisano, A.
Azfar, F.
Badgett, W.
Bae, T.
Barbaro-Galtieri, A.
Barnes, V.
Barnett, B.
et al.
Citation: Physical Review D, 2015; 91(5):052011-1-052011-10
Publisher: American Physical Society
Issue Date: 2015
ISSN: 1550-7998
1550-2368
Statement of
Responsibility: 
T. Aaltonen et al. (CDF Collaboration: Lawrence Lee-Jr )
Abstract: Production of the Υ(1S) meson in association with a vector boson is a rare process in the standard model with a cross section predicted to be below the sensitivity of the Tevatron. Observation of this process could signify contributions not described by the standard model or reveal limitations with the current nonrelativistic quantum-chromodynamic models used to calculate the cross section. We perform a search for this process using the full Run II data set collected by the CDF II detector corresponding to an integrated luminosity of 9.4  fb−1. The search considers the Υ→μμ decay and the decay of the W and Z bosons into muons and electrons. In these purely leptonic decay channels, we observe one ΥW candidate with an expected background of 1.2±0.5 events, and one ΥZ candidate with an expected background of 0.1±0.1 events. Both observations are consistent with the predicted background contributions. The resulting upper limits on the cross section for Υ+W/Z production are the most sensitive reported from a single experiment and place restrictions on potential contributions from non-standard-model physics.
Description: Published 17 March 2015
Rights: © 2015 American Physical Society
RMID: 0030033624
DOI: 10.1103/PhysRevD.91.052011
Appears in Collections:Physics publications

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