Measurement of the CP-violating phase [phi]s and the B0s meson decay width difference with B0s → J/[psi][phi] decays in ATLAS
A measurement of the B 0 s decay parameters in the B 0 s → 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 ϕ s , the decay width Γ s and the width diffe...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
24 August 2016
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| In: |
Journal of high energy physics
Year: 2016, Issue: 8 |
| ISSN: | 1029-8479 |
| DOI: | 10.1007/JHEP08(2016)147 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1007/JHEP08(2016)147
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| Author Notes: | The ATLAS collaboration* |
MARC
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| 245 | 1 | 0 | |a Measurement of the CP-violating phase [phi]s and the B0s meson decay width difference with B0s → J/[psi][phi] decays in ATLAS |c The ATLAS collaboration* |
| 246 | 3 | 0 | |a ϕ ψ |
| 246 | 3 | 3 | |a Measurement of the CP-violating phase [phi] s and the B 0 s meson decay width difference with B 0 s → J / [psi] [phi] decays in ATLAS |
| 264 | 1 | |c 24 August 2016 | |
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| 500 | |a *The ATLAS collaboration: G. Aad, C.F. Anders, V. Andrei, A.E. Baas, O. Brandt, Y. Davygora, J.I. Djuvsland, M. Dunford, M.P. Geisler, M. Giulini, P. Hanke. J. Jongmanns, E.-E. Kluge, M. Kretz, A. Kugel, V.S. Lang, M. Lisovyi, K. Meier, S. Schaetzel, V. Scharf, S. Schmitt, A. Schoening, H.-C. Schultz-Coulon, D. Sosa, R. Stamen, M. Wessels [und sehr viele weitere Personen] | ||
| 500 | |a Gesehen am 29.06.2020 | ||
| 520 | |a A measurement of the B 0 s decay parameters in the B 0 s → 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 ϕ s , the decay width Γ s and the width difference between the mass eigenstates ΔΓ s . The values measured for the physical parameters are statistically combined with those from 4.9 fb−1 of 7 TeV data, leading to the following: ϕs=−0.090±0.078(stat.)±0.041(syst.)rad, ΔΓs=0.085±0.011(stat.)±0.007(syst.)ps−1, Γs=0.675±0.003(stat.)±0.003(syst.)ps−1. In the analysis the parameter ΔΓ s is constrained to be positive. Results for ϕ s and ΔΓ s are also presented as 68% and 95% likelihood contours in the ϕ s -ΔΓ s plane. Also measured in this decay channel are the transversity amplitudes and corresponding strong phases. All measurements are in agreement with the Standard Model predictions. | ||
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