Header

UZH-Logo

Maintenance Infos

Observation of the Production of a W Boson in Association with a Single Charm Quark


CDF Collaboration; et al; Canelli, F; Kilminster, B (2013). Observation of the Production of a W Boson in Association with a Single Charm Quark. Physical Review Letters, 110(7):071801.

Abstract

The first observation of the production of a W boson with a single charm quark (c) jet in pp¯ collisions at s√=1.96  TeV is reported. The analysis uses data corresponding to 4.3  fb−1, recorded with the CDF II detector at the Fermilab Tevatron. Charm quark candidates are selected through the identification of an electron or muon from charm-hadron semileptonic decay within a hadronic jet, and a Wc signal is observed with a significance of 5.7 standard deviations. The production cross section σWc(pTc>20  GeV/c,|ηc|<1.5)×B(W→ℓν) is measured to be 13.6+3.4−3.1  pb and is in agreement with theoretical expectations. From this result the magnitude of the quark-mixing matrix element Vcs is derived, |Vcs|=1.08±0.16 along with a lower limit of |Vcs|>0.71 at the 95% confidence level, assuming that the Wc production through c to s quark coupling is dominant.

Abstract

The first observation of the production of a W boson with a single charm quark (c) jet in pp¯ collisions at s√=1.96  TeV is reported. The analysis uses data corresponding to 4.3  fb−1, recorded with the CDF II detector at the Fermilab Tevatron. Charm quark candidates are selected through the identification of an electron or muon from charm-hadron semileptonic decay within a hadronic jet, and a Wc signal is observed with a significance of 5.7 standard deviations. The production cross section σWc(pTc>20  GeV/c,|ηc|<1.5)×B(W→ℓν) is measured to be 13.6+3.4−3.1  pb and is in agreement with theoretical expectations. From this result the magnitude of the quark-mixing matrix element Vcs is derived, |Vcs|=1.08±0.16 along with a lower limit of |Vcs|>0.71 at the 95% confidence level, assuming that the Wc production through c to s quark coupling is dominant.

Statistics

Citations

12 citations in Web of Science®
14 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

68 downloads since deposited on 20 Feb 2014
43 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2013
Deposited On:20 Feb 2014 09:10
Last Modified:05 Apr 2016 17:37
Publisher:American Physical Society
ISSN:0031-9007
Publisher DOI:https://doi.org/10.1103/PhysRevLett.110.071801

Download

Preview Icon on Download
Preview
Content: Accepted Version
Filetype: PDF
Size: 191kB
View at publisher