TY - GEN AU - Aad, G. AU - Aguilar Saavedra, Juan Antonio AU - Atlas Collaboration PY - 2016 SN - 1029-8479 UR - http://hdl.handle.net/10481/45217 AB - A measurement of the Bs0 decay parameters in the Bs0 → J/ψϕ channel using an integrated luminosity of 14.3 fb−1 collected by the ATLAS detector from 8 TeV pp collisions at the LHC is presented. The measured parameters include the CP -violating phase... AB - ϕs=−0.090±0.078(stat.)±0.041(syst.)rad AB - ΔΓs=0.085±0.011(stat.)±0.007(syst.)ps−1 AB - Γs=0.675±0.003(stat.)±0.003(syst.)ps−1. AB - In the analysis the parameter ΔΓs is constrained to be positive. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood contours in the ϕs-ΔΓs plane. Also measured in this decay channel are the transversity amplitudes and corresponding... LA - eng PB - Springer Verlang KW - B physics KW - CP violation KW - Flavor physics KW - Hadron-Hadron scattering (experiments) TI - Measurement of the CP-violating phase ϕs and the Bs0 meson decay width difference with Bs0 → J/ψϕ decays in ATLAS DO - 10.1007/JHEP08(2016)147 ER -