Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Determination of the Width of the Top Quark
Stockholm University, Faculty of Science, Department of Physics. (Elementarpartikelfysik)
2011 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 106, no 2, 022001- p.Article in journal (Refereed) Published
Abstract [en]

We extract the total width of the top quark, Γt, from the partial decay width Γ(t→Wb) measured using the t-channel cross section for single top-quark production and from the branching fraction B(t→Wb) measured in tt̅ events using up to 2.3  fb-1 of integrated luminosity collected by the D0 Collaboration at the Tevatron pp̅ Collider. The result is Γt=1.99-0.55+0.69  GeV, which translates to a top-quark lifetime of τt=(3.3-0.9+1.3)×10-25  s. Assuming a high mass fourth generation b quark and unitarity of the four-generation quark-mixing matrix, we set the first upper limit on |Vtb|<0.63 at 95% C.L.

Place, publisher, year, edition, pages
2011. Vol. 106, no 2, 022001- p.
National Category
Subatomic Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:su:diva-62028DOI: 10.1103/PhysRevLett.106.022001ISI: 000286746300004OAI: oai:DiVA.org:su-62028DiVA: diva2:439453
Projects
D0
Funder
Swedish Research Council
Note
Publikationen har totalt 433 författare, V. Abazov et al.Available from: 2011-09-07 Created: 2011-09-07 Last updated: 2017-12-08Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Åsman, Barbro
By organisation
Department of Physics
In the same journal
Physical Review Letters
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 28 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf