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Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector

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

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Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector. / The ATLAS collaboration.
In: European Physical Journal C: Particles and Fields, Vol. 76, No. 1, 11, 07.01.2016.

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

Harvard

The ATLAS collaboration 2016, 'Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector', European Physical Journal C: Particles and Fields, vol. 76, no. 1, 11. https://doi.org/10.1140/epjc/s10052-015-3852-4

APA

The ATLAS collaboration (2016). Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector. European Physical Journal C: Particles and Fields, 76(1), Article 11. https://doi.org/10.1140/epjc/s10052-015-3852-4

Vancouver

The ATLAS collaboration. Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector. European Physical Journal C: Particles and Fields. 2016 Jan 7;76(1):11. doi: 10.1140/epjc/s10052-015-3852-4

Author

The ATLAS collaboration. / Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector. In: European Physical Journal C: Particles and Fields. 2016 ; Vol. 76, No. 1.

Bibtex

@article{5c898ce9435f49d2a7807356cee8864b,
title = "Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector",
abstract = "Fiducial cross-sections for tt¯ production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb−1 of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for tt¯ events with at least one additional b-jet is measured to be 950 ± 70 (stat.) +240−190 (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) +15−10 (syst.) fb in the eμeμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton channel (eμeμ, μμμμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of tt¯ production with two additional b-jets to tt¯ production with any two additional jets. All measurements are in good agreement with recent theory predictions.",
author = "Barton, {Adam Edward} and Michael Beattie and Guennadi Borissov and Bouhova-Thacker, {Evelina Vassileva} and William Dearnaley and Harald Fox and Grimm, {Kathryn Ann Tschann} and Henderson, {Robert Charles William} and Gareth Hughes and Jones, {Roger William Lewis} and Vakhtang Kartvelishvili and Long, {Robin Eamonn} and Love, {Peter Allan} and Harvey Maddocks and Maria Smizanska and Walder, {James William} and Andy Wharton and {The ATLAS collaboration}",
year = "2016",
month = jan,
day = "7",
doi = "10.1140/epjc/s10052-015-3852-4",
language = "English",
volume = "76",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "SPRINGER",
number = "1",

}

RIS

TY - JOUR

T1 - Measurements of fiducial cross-sections for tt¯ production with one or two additional b-jets in pp collisions at √s=8 TeV using the ATLAS detector

AU - Barton, Adam Edward

AU - Beattie, Michael

AU - Borissov, Guennadi

AU - Bouhova-Thacker, Evelina Vassileva

AU - Dearnaley, William

AU - Fox, Harald

AU - Grimm, Kathryn Ann Tschann

AU - Henderson, Robert Charles William

AU - Hughes, Gareth

AU - Jones, Roger William Lewis

AU - Kartvelishvili, Vakhtang

AU - Long, Robin Eamonn

AU - Love, Peter Allan

AU - Maddocks, Harvey

AU - Smizanska, Maria

AU - Walder, James William

AU - Wharton, Andy

AU - The ATLAS collaboration

PY - 2016/1/7

Y1 - 2016/1/7

N2 - Fiducial cross-sections for tt¯ production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb−1 of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for tt¯ events with at least one additional b-jet is measured to be 950 ± 70 (stat.) +240−190 (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) +15−10 (syst.) fb in the eμeμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton channel (eμeμ, μμμμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of tt¯ production with two additional b-jets to tt¯ production with any two additional jets. All measurements are in good agreement with recent theory predictions.

AB - Fiducial cross-sections for tt¯ production with one or two additional b-jets are reported, using an integrated luminosity of 20.3 fb−1 of proton–proton collisions at a centre-of-mass energy of 8 TeV at the Large Hadron Collider, collected with the ATLAS detector. The cross-section times branching ratio for tt¯ events with at least one additional b-jet is measured to be 950 ± 70 (stat.) +240−190 (syst.) fb in the lepton-plus-jets channel and 50 ± 10 (stat.) +15−10 (syst.) fb in the eμeμ channel. The cross-section times branching ratio for events with at least two additional b-jets is measured to be 19.3 ± 3.5 (stat.) ± 5.7 (syst.) fb in the dilepton channel (eμeμ, μμμμ, and ee) using a method based on tight selection criteria, and 13.5 ± 3.3 (stat.) ± 3.6 (syst.) fb using a looser selection that allows the background normalisation to be extracted from data. The latter method also measures a value of 1.30 ± 0.33 (stat.) ± 0.28 (syst.)% for the ratio of tt¯ production with two additional b-jets to tt¯ production with any two additional jets. All measurements are in good agreement with recent theory predictions.

U2 - 10.1140/epjc/s10052-015-3852-4

DO - 10.1140/epjc/s10052-015-3852-4

M3 - Journal article

VL - 76

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 1

M1 - 11

ER -