Search for production of an Υ (1S) meson in association with a W or Z boson using the full 1.96 TeV pp ¯ collision data set at CDF

0522392 - FZÚ 2020 RIV US eng J - Journal Article
Aaltonen, T. - Amerio, S. - Amidei, D. - Lysák, Roman … Total 402 authors
Search for production of an Υ (1S) meson in association with a W or Z boson using the full 1.96 TeV pp ¯ collision data set at CDF.
Physical Review D. Roč. 91, č. 5 (2015), s. 1-10, č. článku 052011. ISSN 2470-0010. E-ISSN 2470-0029
Institutional support: RVO:68378271
Keywords : CDF * Batavia TEVATRON Coll * quantum chromodynamics: nonrelativistic * vector boson: associated production * experimental results * 1960 GeV-cms
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.506, year: 2015
Method of publishing: Limited access
https://doi.org/10.1103/physrevd.91.052011

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.
Permanent Link: http://hdl.handle.net/11104/0306892