Time-dependent angular analysis of the decay B0sJ/?? and extraction of ??s and the CP-violating weak phase ?s by ATLAS

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F12%3A00441681" target="_blank" >RIV/68378271:_____/12:00441681 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1007/JHEP12(2012)072" target="_blank" >http://dx.doi.org/10.1007/JHEP12(2012)072</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/JHEP12(2012)072" target="_blank" >10.1007/JHEP12(2012)072</a>

Result language
angličtina
Original language name
Time-dependent angular analysis of the decay B0sJ/?? and extraction of ??s and the CP-violating weak phase ?s by ATLAS
Original language description
A measurement of Bs J/psi phi decay parameters, including the CP-violating weak phase phi_s and the decay width difference Delta Gamma_s is reported, using 4.9 fb-1 of integrated luminosity collected in 2011 by the ATLAS detector from LHC pp collisions at a centre- of-mass energy sqrt(s) = 7 TeV. The mean decay width Gamma_s and the transversity amplitudes |A0(0)|^2 and |A||(0)|^2 are also measured. The values reported for these parameters are: phi_s = 0.22 /pm 0.41 (stat.) /pm 0.10 (syst.) rad Delta Gamma_s = 0.053 /pm 0.021 (stat.) /pm 0.010 (syst.) ps-1 Gamma_s = 0.677 /pm 0.007 (stat.) /pm 0.004 (syst.) ps-1 |A0(0)|^2 = 0.528 /pm 0.006 (stat.) /pm 0.009 (syst.) |A||(0)|^2 = 0.220 /pm 0.008 (stat.) /pm 0.007 (syst.) where the values quoted for phi_sand Delta Gamma_s correspond to the solution compatible with the external measurements to which the strong phase delta perpendicular is constrained and where Delta Gamma_s is constrained to be positive.
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
BG - Nuclear, atomic and molecular physics, accelerators
OECD FORD branch
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Project
<a href="/en/project/LA08032" target="_blank" >LA08032: International experiment ATLAS-CERN</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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