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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

Journal Article · · Physical Review. D, Particles, Fields, Gravitation and Cosmology
 [1]
  1. Univ. of Helsinki (Finland). et al.
+ Show Author Affiliations

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.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Contributing Organization:
CDF Collaboration
Grant/Contract Number:
AC02-07CH11359
OSTI ID:
1226311
Alternate ID(s):
OSTI ID: 1180705
Report Number(s):
FERMILAB-PUB-14-540-PPD; arXiv eprint number arXiv:1412.4827; TRN: US1600955
Journal Information:
Physical Review. D, Particles, Fields, Gravitation and Cosmology, Vol. 91, Issue 05; ISSN 1550-7998
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 6 works
Citation information provided by
Web of Science

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Cited By (2)

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

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