Measurement of the CP-violating phase ϕs in Bs0→J/ψϕ decays in ATLAS at 13 TeV
Aad, G ; Åkesson, Torsten LU
; Bryngemark, Lene
LU
; Bocchetta, Simona
LU
; Corrigan, Eric Edward
LU
; Doglioni, Caterina
LU
; Gregersen, Kristian
LU
; Brottmann Hansen, Eva
LU
; Hedberg, Vincent
LU
and Jarlskog, Göran
LU
, et al.
(2021)
In European Physical Journal C
81(4).
- Abstract
- A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference Δ Γ s between the Bs0 meson mass eigenstates and the average decay width Γ s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕs and Δ Γ s are also presented as 68% confidence level contours in the ϕs–Δ Γ s plane. Furthermore the transversity amplitudes and... (More)
- A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference Δ Γ s between the Bs0 meson mass eigenstates and the average decay width Γ s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕs and Δ Γ s are also presented as 68% confidence level contours in the ϕs–Δ Γ s plane. Furthermore the transversity amplitudes and corresponding strong phases are measured. ϕs and Δ Γ s measurements are in agreement with the Standard Model predictions. © 2021, The Author(s). (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/d2db93f7-c36f-49c1-b5ab-b211e1a478fc
- author
- Aad, G
; Åkesson, Torsten
LU
; Bryngemark, Lene
LU
; Bocchetta, Simona
LU
; Corrigan, Eric Edward
LU
; Doglioni, Caterina
LU
; Gregersen, Kristian
LU
; Brottmann Hansen, Eva
LU
; Hedberg, Vincent
LU
and Jarlskog, Göran
LU
, et al. (More)
- Aad, G
; Åkesson, Torsten
LU
; Bryngemark, Lene
LU
; Bocchetta, Simona
LU
; Corrigan, Eric Edward
LU
; Doglioni, Caterina
LU
; Gregersen, Kristian
LU
; Brottmann Hansen, Eva
LU
; Hedberg, Vincent
LU
; Jarlskog, Göran
LU
; Kalderon, Charles
LU
; Kellermann, Edgar
LU
; Konya, Balazs
LU
; Lytken, Else
LU
; Mankinen, Katja
LU
; Marcon, Caterina
LU
; Mjörnmark, Ulf
LU
; Mullier, Geoffrey André Adrien
LU
; Pöttgen, Ruth
LU
; Poulsen, Trine
LU
; Skorda, Eleni
LU
; Smirnova, Oxana
LU
and Zwalinski, L.
(Less)
- author collaboration
- organization
- publishing date
- 2021
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 81
- issue
- 4
- article number
- 342
- publisher
- Springer
- external identifiers
-
- scopus:85104776936
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-021-09011-0
- language
- English
- LU publication?
- yes
- id
- d2db93f7-c36f-49c1-b5ab-b211e1a478fc
- date added to LUP
- 2021-05-10 15:11:50
- date last changed
- 2023-04-02 07:06:43
@article{d2db93f7-c36f-49c1-b5ab-b211e1a478fc,
abstract = {{A measurement of the Bs0→J/ψϕ decay parameters using 80.5fb-1 of integrated luminosity collected with the ATLAS detector from 13 Te proton–proton collisions at the LHC is presented. The measured parameters include the CP-violating phase ϕs, the width difference Δ Γ s between the Bs0 meson mass eigenstates and the average decay width Γ s. The values measured for the physical parameters are combined with those from 19.2fb-1 of 7 and 8 Te data, leading to the following: ϕs=-0.087±0.036(stat.)±0.021(syst.)radΔΓs=0.0657±0.0043(stat.)±0.0037(syst.)ps-1Γs=0.6703±0.0014(stat.)±0.0018(syst.)ps-1Results for ϕs and Δ Γ s are also presented as 68% confidence level contours in the ϕs–Δ Γ s plane. Furthermore the transversity amplitudes and corresponding strong phases are measured. ϕs and Δ Γ s measurements are in agreement with the Standard Model predictions. © 2021, The Author(s).}},
author = {{Aad, G and Åkesson, Torsten and Bryngemark, Lene and Bocchetta, Simona and Corrigan, Eric Edward and Doglioni, Caterina and Gregersen, Kristian and Brottmann Hansen, Eva and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Konya, Balazs and Lytken, Else and Mankinen, Katja and Marcon, Caterina and Mjörnmark, Ulf and Mullier, Geoffrey André Adrien and Pöttgen, Ruth and Poulsen, Trine and Skorda, Eleni and Smirnova, Oxana and Zwalinski, L.}},
issn = {{1434-6044}},
language = {{eng}},
number = {{4}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Measurement of the CP-violating phase ϕs in Bs0→J/ψϕ decays in ATLAS at 13 TeV}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-021-09011-0}},
doi = {{10.1140/epjc/s10052-021-09011-0}},
volume = {{81}},
year = {{2021}},
}