Measurement of the B0s lifetime in the flavor-specific decay channel B0sDs?+?X

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00455620" target="_blank" >RIV/68378271:_____/15:00455620 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1103/PhysRevLett.114.062001" target="_blank" >http://dx.doi.org/10.1103/PhysRevLett.114.062001</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1103/PhysRevLett.114.062001" target="_blank" >10.1103/PhysRevLett.114.062001</a>

Result language
angličtina
Original language name
Measurement of the B0s lifetime in the flavor-specific decay channel B0sDs?+?X
Original language description
We present an updated measurement of the Bs0 lifetime using the semileptonic decays Bs0Ds-?+?X, with Ds-??- and ?K+K- (and the charge conjugate process). This measurement uses the full Tevatron Run II sample of proton-antiproton collisions at s=1.96??TeV, comprising an integrated luminosity of 10.4??fb1. We find a flavor-specific lifetime ?fs(Bs0)=1.4790.010(stat)0.021(syst)??ps. This technique is also used to determine the B0 lifetime using the analogous B0D-?+?X decay with D-??- and ?K+K-, yielding ?(B0)=1.5340.019(stat)0.021(syst)??ps. Both measurements are consistent with the current world averages, and the Bs0 lifetime measurement is one of the most precise to date.
Czech name
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Czech description
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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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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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