An improved determination of the width of the top quark
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00379922" target="_blank" >RIV/68378271:_____/12:00379922 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevD.85.091104" target="_blank" >http://dx.doi.org/10.1103/PhysRevD.85.091104</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevD.85.091104" target="_blank" >10.1103/PhysRevD.85.091104</a>
Alternative languages
Result language
angličtina
Original language name
An improved determination of the width of the top quark
Original language description
We present an improved determination of the total width of the top quark, ?t, using 5.4 fb1 of integrated luminosity collected by the D0 Collaboration at the Tevatron pp? Collider. The total width ?t is extracted from the partial decay width ?(tWb) and the branching fraction B(tWb). ?(tWb) is obtained from the t-channel single top quark production cross section and B(tWb) is measured in tt? events. For a top mass of 172.5//GeV, the resulting width is ?t=2.00+0.470.43 GeV. This translates to a top-quarklifetime of ?t=(3.29+0.900.63)1025 s. We also extract an improved direct limit on the CKM matrix element 0.81<|Vtb|1 at 95% C.L. and a limit of |Vtb|<0.59 for a high mass fourth generation bottom quark assuming unitarity of the fourth generation quark mixing matrix.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BF - Elementary particle theory and high energy physics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LA08047" target="_blank" >LA08047: Collaboration on the D0 Experiment at FNAL, U.S.A.</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Physical Review D: Particles, Fields, Gravitation and Cosmology
ISSN
1550-7998
e-ISSN
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Volume of the periodical
85
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
"091104-1"-"091104-8"
UT code for WoS article
000303659200003
EID of the result in the Scopus database
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