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Title: 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

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. Our search considers the Υ→μμ decay and the decay of the W and Z bosons into muons and electrons. Furthermore, in these purely leptonic decay channels, we observe one ΥW candidate with an expected background of 1.2±0.5 events, and one ΥZcandidate 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/Zproduction are the most sensitive reported from a single experiment and place restrictions on potential contributions from non-standard-model physics.

Authors:
 [1]
  1. Univ. of Helsinki (Finland). et al.
Publication Date:
Research Org.:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Org.:
CDF Collaboration
OSTI Identifier:
1226311
Alternate Identifier(s):
OSTI ID: 1180705
Report Number(s):
FERMILAB-PUB-14-540-PPD
Journal ID: ISSN 1550-7998; arXiv eprint number arXiv:1412.4827; TRN: US1600955
Grant/Contract Number:  
AC02-07CH11359
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. D, Particles, Fields, Gravitation and Cosmology
Additional Journal Information:
Journal Volume: 91; Journal Issue: 05; Journal ID: ISSN 1550-7998
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Aaltonen, T. 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. United States: N. p., 2015. Web. doi:10.1103/PhysRevD.91.052011.
Aaltonen, T. 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. United States. https://doi.org/10.1103/PhysRevD.91.052011
Aaltonen, T. Tue . "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". United States. https://doi.org/10.1103/PhysRevD.91.052011. https://www.osti.gov/servlets/purl/1226311.
@article{osti_1226311,
title = {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.},
abstractNote = {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. Our search considers the Υ→μμ decay and the decay of the W and Z bosons into muons and electrons. Furthermore, in these purely leptonic decay channels, we observe one ΥW candidate with an expected background of 1.2±0.5 events, and one ΥZcandidate 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/Zproduction are the most sensitive reported from a single experiment and place restrictions on potential contributions from non-standard-model physics.},
doi = {10.1103/PhysRevD.91.052011},
journal = {Physical Review. D, Particles, Fields, Gravitation and Cosmology},
number = 05,
volume = 91,
place = {United States},
year = {Tue Mar 17 00:00:00 EDT 2015},
month = {Tue Mar 17 00:00:00 EDT 2015}
}

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Cited by: 6 works
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Works referencing / citing this record:

Associated production of a quarkonium and a Z boson at one loop in a quark-hadron-duality approach
journal, October 2016

  • Lansberg, Jean-Philippe; Shao, Hua-Sheng
  • Journal of High Energy Physics, Vol. 2016, Issue 10
  • DOI: 10.1007/jhep10(2016)153