Measurements of inclusive and differential fiducial cross-sections of tt¯ γ production in leptonic final states at √s=13TeV in ATLAS
Aaboud, M ; Åkesson, Torsten LU
; Bocchetta, Simona
LU
; Bryngemark, Lene
LU
; Corrigan, Eric
LU
; Doglioni, Caterina
LU
; Gregersen, Kristian
LU
; Brottmann Hansen, Eva
LU
; Hedberg, Vincent
LU
and Jarlskog, Göran
LU
, et al.
(2019)
In European Physical Journal C
79(5).
- Abstract
- Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb-1, collected by the ATLAS detector at the LHC in 2015 and 2016 at a centre-of-mass energy of 13 TeV. The measurements are performed in single-lepton and dilepton final states in a fiducial volume. Events with exactly one photon, one or two leptons, a channel-dependent minimum number of jets, and at least one b-jet are selected. Neural network algorithms are used to separate the signal from the backgrounds. The fiducial cross-sections are measured to be 521±9(stat.)±41(sys.)fb and 69±3(stat.)±4(sys.)fb for the single-lepton and... (More)
- Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb-1, collected by the ATLAS detector at the LHC in 2015 and 2016 at a centre-of-mass energy of 13 TeV. The measurements are performed in single-lepton and dilepton final states in a fiducial volume. Events with exactly one photon, one or two leptons, a channel-dependent minimum number of jets, and at least one b-jet are selected. Neural network algorithms are used to separate the signal from the backgrounds. The fiducial cross-sections are measured to be 521±9(stat.)±41(sys.)fb and 69±3(stat.)±4(sys.)fb for the single-lepton and dilepton channels, respectively. The differential cross-sections are measured as a function of photon transverse momentum, photon absolute pseudorapidity, and angular distance between the photon and its closest lepton in both channels, as well as azimuthal opening angle and absolute pseudorapidity difference between the two leptons in the dilepton channel. All measurements are in agreement with the theoretical predictions. © 2019, CERN for the benefit of the ATLAS collaboration. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/72db7f5c-7c8a-4bad-84b7-66078610318c
- author
- Aaboud, M
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; Bryngemark, Lene
LU
; Corrigan, Eric
LU
; Doglioni, Caterina
LU
; Gregersen, Kristian
LU
; Brottmann Hansen, Eva
LU
; Hedberg, Vincent
LU
and Jarlskog, Göran
LU
, et al. (More)
- Aaboud, M
; Åkesson, Torsten
LU
; Bocchetta, Simona
LU
; Bryngemark, Lene
LU
; Corrigan, Eric
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
LU
; Pöttgen, Ruth
LU
; Poulsen, Trine
LU
; Smirnova, Oxana
LU
and Zwalinski, L
(Less)
- author collaboration
- organization
- publishing date
- 2019
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 79
- issue
- 5
- article number
- 382
- publisher
- Springer
- external identifiers
-
- scopus:85065246725
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-019-6849-6
- language
- English
- LU publication?
- yes
- additional info
- Export Date: 21 May 2019
- id
- 72db7f5c-7c8a-4bad-84b7-66078610318c
- date added to LUP
- 2019-05-21 14:04:41
- date last changed
- 2023-04-09 11:39:25
@article{72db7f5c-7c8a-4bad-84b7-66078610318c,
abstract = {{Inclusive and differential cross-sections for the production of a top-quark pair in association with a photon are measured with proton-proton collision data corresponding to an integrated luminosity of 36.1 fb-1, collected by the ATLAS detector at the LHC in 2015 and 2016 at a centre-of-mass energy of 13 TeV. The measurements are performed in single-lepton and dilepton final states in a fiducial volume. Events with exactly one photon, one or two leptons, a channel-dependent minimum number of jets, and at least one b-jet are selected. Neural network algorithms are used to separate the signal from the backgrounds. The fiducial cross-sections are measured to be 521±9(stat.)±41(sys.)fb and 69±3(stat.)±4(sys.)fb for the single-lepton and dilepton channels, respectively. The differential cross-sections are measured as a function of photon transverse momentum, photon absolute pseudorapidity, and angular distance between the photon and its closest lepton in both channels, as well as azimuthal opening angle and absolute pseudorapidity difference between the two leptons in the dilepton channel. All measurements are in agreement with the theoretical predictions. © 2019, CERN for the benefit of the ATLAS collaboration.}},
author = {{Aaboud, M and Åkesson, Torsten and Bocchetta, Simona and Bryngemark, Lene and Corrigan, Eric 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 and Pöttgen, Ruth and Poulsen, Trine and Smirnova, Oxana and Zwalinski, L}},
issn = {{1434-6044}},
language = {{eng}},
number = {{5}},
publisher = {{Springer}},
series = {{European Physical Journal C}},
title = {{Measurements of inclusive and differential fiducial cross-sections of tt¯ γ production in leptonic final states at √s=13TeV in ATLAS}},
url = {{http://dx.doi.org/10.1140/epjc/s10052-019-6849-6}},
doi = {{10.1140/epjc/s10052-019-6849-6}},
volume = {{79}},
year = {{2019}},
}