Measurement of the CP-violating phase ϕsand the Bs0meson decay width difference with Bs 0→ J/ψϕ decays in ATLAS
Aad, G ; Abbott, B. ; Abdallah, J ; Abdinov, O ; Aben, R ; Abolins, M ; Åkesson, Torsten LU
; Bocchetta, Simona
LU
; BRYNGEMARK, LENE
LU
and Doglioni, Caterina
LU
, et al.
(2016)
In Journal of High Energy Physics
2016(8).
- Abstract
- A measurement of the Bs0decay parameters in the Bs0→ J/ψϕ channel using an integrated luminosity of 14.3 fb−1collected by the ATLAS detector from 8 TeV pp collisions at the LHC is presented. The measured parameters include the CP -violating phase ϕs, the decay width Γs and the width difference between the mass eigenstates ΔΓs. The values measured for the physical parameters are statistically combined with those from 4.9 fb−1of 7 TeV data, leading to the following: Φs = -0.090 ± 0.078 (stat.) ± (syst.) rad Δ Γs = 0.085 ± 0.011 (stat.) ± 0.007 (syst.) Ps-1 Δ Γs = 0.675 ± 0.003 (stat.) ± 0.03 (syst.) Ps-1 In the analysis the parameter ΔΓs is constrained to be positive. Results for ϕs and ΔΓs are also presented as 68% and 95% likelihood... (More)
- A measurement of the Bs0decay parameters in the Bs0→ J/ψϕ channel using an integrated luminosity of 14.3 fb−1collected by the ATLAS detector from 8 TeV pp collisions at the LHC is presented. The measured parameters include the CP -violating phase ϕs, the decay width Γs and the width difference between the mass eigenstates ΔΓs. The values measured for the physical parameters are statistically combined with those from 4.9 fb−1of 7 TeV data, leading to the following: Φs = -0.090 ± 0.078 (stat.) ± (syst.) rad Δ Γs = 0.085 ± 0.011 (stat.) ± 0.007 (syst.) Ps-1 Δ Γs = 0.675 ± 0.003 (stat.) ± 0.03 (syst.) Ps-1 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 strong phases. All measurements are in agreement with the Standard Model predictions.[Figure not available: see fulltext.] © 2016, The Author(s). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/76923515-861b-48fd-8f5f-8b892c4d5073
- author
- Aad, G
; Abbott, B.
; Abdallah, J
; Abdinov, O
; Aben, R
; Abolins, M
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; BRYNGEMARK, LENE
LU
and Doglioni, Caterina
LU
, et al. (More)
- Aad, G
; Abbott, B.
; Abdallah, J
; Abdinov, O
; Aben, R
; Abolins, M
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; BRYNGEMARK, LENE
LU
; Doglioni, Caterina
LU
; Floderus, Anders
LU
; Hawkins, Anthony
LU
; Hedberg, Vincent
LU
; Ivarsson, Jenny
LU
; Jarlskog, Göran
LU
; Lytken, Else
LU
; Mjörnmark, Ulf
LU
; Smirnova, Oxana
LU
and Viazlo, Oleksandr
LU
(Less)
- author collaboration
- organization
- publishing date
- 2016
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- B physics, CP violation, Flavor physics, Hadron-Hadron scattering (experiments)
- in
- Journal of High Energy Physics
- volume
- 2016
- issue
- 8
- article number
- 147
- publisher
- Springer
- external identifiers
-
- scopus:84986903148
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP08(2016)147
- language
- English
- LU publication?
- yes
- additional info
- Export Date: 29 June 2017
- id
- 76923515-861b-48fd-8f5f-8b892c4d5073
- date added to LUP
- 2017-06-29 12:52:02
- date last changed
- 2023-04-07 18:34:25
@article{76923515-861b-48fd-8f5f-8b892c4d5073,
abstract = {{A measurement of the Bs0decay parameters in the Bs0→ J/ψϕ channel using an integrated luminosity of 14.3 fb−1collected by the ATLAS detector from 8 TeV pp collisions at the LHC is presented. The measured parameters include the CP -violating phase ϕs, the decay width Γs and the width difference between the mass eigenstates ΔΓs. The values measured for the physical parameters are statistically combined with those from 4.9 fb−1of 7 TeV data, leading to the following: Φs = -0.090 ± 0.078 (stat.) ± (syst.) rad Δ Γs = 0.085 ± 0.011 (stat.) ± 0.007 (syst.) Ps-1 Δ Γs = 0.675 ± 0.003 (stat.) ± 0.03 (syst.) Ps-1 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 strong phases. All measurements are in agreement with the Standard Model predictions.[Figure not available: see fulltext.] © 2016, The Author(s).}},
author = {{Aad, G and Abbott, B. and Abdallah, J and Abdinov, O and Aben, R and Abolins, M and Åkesson, Torsten and Bocchetta, Simona and BRYNGEMARK, LENE and Doglioni, Caterina and Floderus, Anders and Hawkins, Anthony and Hedberg, Vincent and Ivarsson, Jenny and Jarlskog, Göran and Lytken, Else and Mjörnmark, Ulf and Smirnova, Oxana and Viazlo, Oleksandr}},
issn = {{1029-8479}},
keywords = {{B physics; CP violation; Flavor physics; Hadron-Hadron scattering (experiments)}},
language = {{eng}},
number = {{8}},
publisher = {{Springer}},
series = {{Journal of High Energy Physics}},
title = {{Measurement of the CP-violating phase ϕsand the Bs0meson decay width difference with Bs 0→ J/ψϕ decays in ATLAS}},
url = {{http://dx.doi.org/10.1007/JHEP08(2016)147}},
doi = {{10.1007/JHEP08(2016)147}},
volume = {{2016}},
year = {{2016}},
}