Flavor tagged time-dependent angular analysis of the B0s→J/ψϕ decay and extraction of ΔΓs and the weak phase ϕs in ATLAS

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Experimental Particle Physics

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PhysRevD.90.052007
Rights statement: Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2014 CERN, for the ATLAS Collaboration
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Flavor tagged time-dependent angular analysis of the B0s→J/ψϕ decay and extraction of ΔΓs and the weak phase ϕs in ATLAS. / The ATLAS collaboration.
In: Physical Review D, Vol. 90, No. 5, 052007, 23.09.2014.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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@article{165b005375ec495c9e2a8a858e791393,

title = "Flavor tagged time-dependent angular analysis of the B0s→J/ψϕ decay and extraction of ΔΓs and the weak phase ϕs in ATLAS",

abstract = "A measurement of the B0s→J/ψϕ decay parameters, updated to include flavor tagging is reported using 4.9 fb−1 of integrated luminosity collected by the ATLAS detector from s√=7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters areϕs0.12±0.25(stat)±0.05(syst) radΔΓs0.053±0.021(stat)±0.010(syst) ps−1Γs0.677±0.007(stat)±0.004(syst) ps−1|A∥(0)|20.220±0.008(stat)±0.009(syst)|A0(0)|20.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst) radwhere the parameter ΔΓs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.",

author = "Lee Allison and Adam Barton and Guennadi Borissov and Eva Bouhova-Thacker and James Catmore and Alexandre Chilingarov and William Dearnaley and Harald Fox and Kathryn Grimm and Robert Henderson and Gareth Hughes and Jones, {Roger William Lewis} and Vakhtang Kartvelishvili and Robin Long and Peter Love and Harvey Maddocks and Maria Smizanska and James Walder and {The ATLAS collaboration}",

note = "Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article{\textquoteright}s title, journal citation, and DOI. {\textcopyright} 2014 CERN, for the ATLAS Collaboration",

year = "2014",

month = sep,

day = "23",

doi = "10.1103/PhysRevD.90.052007",

language = "English",

volume = "90",

journal = "Physical Review D",

issn = "1550-7998",

publisher = "American Physical Society",

number = "5",

}

RIS

TY - JOUR

T1 - Flavor tagged time-dependent angular analysis of the B0s→J/ψϕ decay and extraction of ΔΓs and the weak phase ϕs in ATLAS

AU - Allison, Lee

AU - Barton, Adam

AU - Borissov, Guennadi

AU - Bouhova-Thacker, Eva

AU - Catmore, James

AU - Chilingarov, Alexandre

AU - Dearnaley, William

AU - Fox, Harald

AU - Grimm, Kathryn

AU - Henderson, Robert

AU - Hughes, Gareth

AU - Jones, Roger William Lewis

AU - Kartvelishvili, Vakhtang

AU - Long, Robin

AU - Love, Peter

AU - Maddocks, Harvey

AU - Smizanska, Maria

AU - Walder, James

AU - The ATLAS collaboration

N1 - Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2014 CERN, for the ATLAS Collaboration

PY - 2014/9/23

Y1 - 2014/9/23

N2 - A measurement of the B0s→J/ψϕ decay parameters, updated to include flavor tagging is reported using 4.9 fb−1 of integrated luminosity collected by the ATLAS detector from s√=7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters areϕs0.12±0.25(stat)±0.05(syst) radΔΓs0.053±0.021(stat)±0.010(syst) ps−1Γs0.677±0.007(stat)±0.004(syst) ps−1|A∥(0)|20.220±0.008(stat)±0.009(syst)|A0(0)|20.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst) radwhere the parameter ΔΓs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.

AB - A measurement of the B0s→J/ψϕ decay parameters, updated to include flavor tagging is reported using 4.9 fb−1 of integrated luminosity collected by the ATLAS detector from s√=7 TeV pp collisions recorded in 2011 at the LHC. The values measured for the physical parameters areϕs0.12±0.25(stat)±0.05(syst) radΔΓs0.053±0.021(stat)±0.010(syst) ps−1Γs0.677±0.007(stat)±0.004(syst) ps−1|A∥(0)|20.220±0.008(stat)±0.009(syst)|A0(0)|20.529±0.006(stat)±0.012(syst)δ⊥=3.89±0.47(stat)±0.11(syst) radwhere the parameter ΔΓs is constrained to be positive. The S-wave contribution was measured and found to be compatible with zero. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood contours, which show agreement with the Standard Model expectations.

U2 - 10.1103/PhysRevD.90.052007

DO - 10.1103/PhysRevD.90.052007

M3 - Journal article

VL - 90

JO - Physical Review D

JF - Physical Review D

SN - 1550-7998

IS - 5

M1 - 052007

ER -

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