dc.contributor.author | ATLAS, Collaboration | eng |
dc.contributor.author | Aad, Georges | eng |
dc.contributor.author | Abajyan, T. | eng |
dc.contributor.author | Abbott, Brad | eng |
dc.contributor.author | Abdallah, Jalal | eng |
dc.contributor.author | Abdel Khalek, Samah | eng |
dc.contributor.author | Abdelalim, A. A. | eng |
dc.contributor.author | Buanes, Trygve | eng |
dc.contributor.author | Burgess, Thomas | eng |
dc.contributor.author | Eigen, Gerald | eng |
dc.contributor.author | Kastanas, Alex | eng |
dc.contributor.author | Liebig, Wolfgang | eng |
dc.contributor.author | Lipniacka, Anna | eng |
dc.contributor.author | Rosendahl, Peter Lundgaard | eng |
dc.contributor.author | Sandaker, Heidi | eng |
dc.contributor.author | Sjursen, Therese B. | eng |
dc.contributor.author | Stugu, Bjarne | eng |
dc.contributor.author | Tonoyan, Arshak | eng |
dc.contributor.author | Ugland, Maren | eng |
dc.date.accessioned | 2013-03-26T09:13:21Z | |
dc.date.available | 2013-03-26T09:13:21Z | |
dc.date.issued | 2012-12 | eng |
dc.identifier.issn | 1029-8479 (essn) | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/6462 | |
dc.description | There are 2889 authors for this article. Only the six first authors on the by-line and the authors affiliated to the University of Bergen have been given author entries in addition to the Collaboration. | eng |
dc.description.abstract | A measurement of B0s→J/ψϕ decay parameters, including the CP -violating weak phase ϕ s and the decay width difference ΔΓ 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 s√=7 TeV. The mean decay width Γ s and the transversity amplitudes |A 0(0)|2 and |A ∥(0)|2 are also measured. The values reported for these parameters are: ϕs=0.22±0.41 (stat.)±0.10 (syst.) rad ΔΓs=0.053±0.021 (stat.)±0.010 (syst.) ps−1 Γs=0.677±0.007 (stat.)±0.004 (syst.) ps−1 |A0(0)|2=0.528±0.006 (stat.)±0.009 (syst.) |A∥(0)|2=0.220±0.008 (stat.)±0.007 (syst.) where the values quoted for ϕ s and ΔΓ s correspond to the solution compatible with the external measurements to which the strong phase δ ⊥ is constrained and where ΔΓs is constrained to be positive. The fraction of S-wave KK or f 0 contamination through the decays B0s→J/ψK+K−(f0) is measured as well and is found to be consistent with zero. Results for ϕ s and ΔΓ s are also presented as 68%, 90% and 95% likelihood contours, which show agreement with Standard Model expectations. | en_US |
dc.language.iso | eng | eng |
dc.publisher | Springer Verlag | en_US |
dc.rights | Attribution CC BY | eng |
dc.rights.uri | http://creativecommons.org/licenses/by/2.0/ | eng |
dc.subject | Hadron-Hadron Scattering | eng |
dc.title | Time-dependent angular analysis of the decay B0s→J/ψϕ and extraction of ΔΓ s and the CP-violating weak phase ϕ s by ATLAS | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | Open Access, Copyright CERN, for the benefit of the ATLAS collaboration | en_US |
dc.identifier.doi | https://doi.org/10.1007/jhep12(2012)072 | |
dc.identifier.cristin | 1013414 | |
dc.source.journal | Journal of High Energy Physics | |
dc.source.40 | 72 | |