Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV

M. Aaboud; G. Aad; B. Abbott; O. Abdinov; B Abeloos; S.H. Abidi; Ossama Sherif Alexander Abouzeid; NL Abraham; H. Abramowicz; H. Abreu; R. Abreu; Y. Abulaiti; B.S. Acharya; Shin-ichi Adachi; L. Adamczyk; J. Adelman; M. Adersberger; T. Adye; A. A. Affolder; Y.  Afik; C. Agheorghiesei; J. A. Aguilar-Saavedra; S. P. Ahlen; Milena Bajic; Geert-Jan Besjes; Mogens Dam; Alejandro Alonso Diaz; Flavia de Almeida Dias; Peter Henrik Hansen; Jørn Dines Hansen; Fabian Alexander Jürgen Thiele; James William Monk; Simon Holm Stark; Gorm Aske Gram Krohn Galster; Jørgen Beck Hansen; Troels Christian Petersen; Graig Wiglesworth; Stefania Xella

doi:10.1007/JHEP04(2018)033

Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV

M. Aaboud, G. Aad, B. Abbott, O. Abdinov, B Abeloos, S.H. Abidi, Ossama Sherif Alexander Abouzeid, NL Abraham, H. Abramowicz, H. Abreu, R. Abreu, Y. Abulaiti, B.S. Acharya, Shin-ichi Adachi, L. Adamczyk, J. Adelman, M. Adersberger, T. Adye, A. A. Affolder, Y. AfikC. Agheorghiesei, J. A. Aguilar-Saavedra, S. P. Ahlen, Milena Bajic, Geert-Jan Besjes, Mogens Dam, Alejandro Alonso Diaz, Flavia de Almeida Dias, Peter Henrik Hansen, Jørn Dines Hansen, Fabian Alexander Jürgen Thiele, James William Monk, Simon Holm Stark, Gorm Aske Gram Krohn Galster, Jørgen Beck Hansen, Troels Christian Petersen, Graig Wiglesworth, Stefania Xella

Experimental Particle Physics

4 Citations (Scopus)

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Abstract

This paper presents combinations of inclusive and differential measurements of the charge asymmetry (A_C) in top quark pair (tt) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centreof- mass energies of 7 and 8TeV. The data correspond to integrated luminosities of about 5 and 20 fb^–1for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are A_C ^LHC7= 0:005±0:007 (stat) ±0:006 (syst) at 7TeV and A_C ^LHC7= 0:0055 ± 0:0023 (stat) ± 0:0025 (syst) at 8TeV. These values, as well as the combination of A_C measurements as a function of the invariant mass of the [formula presented] system at 8TeV, are consistent with the respective standard model predictions.

Original language	English
Article number	033
Journal	Journal of High Energy Physics
Volume	2018
Issue number	4
Number of pages	68
ISSN	1126-6708
DOIs	https://doi.org/10.1007/JHEP04(2018)033
Publication status	Published - 1 Jan 2018

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Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abidi, S. H., Abouzeid, O. S. A., Abraham, NL., Abramowicz, H., Abreu, H., Abreu, R., Abulaiti, Y., Acharya, B. S., Adachi, S., Adamczyk, L., Adelman, J., Adersberger, M., Adye, T., Affolder, A. A., ... Xella, S. (2018). Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV. Journal of High Energy Physics, 2018(4), Article 033. https://doi.org/10.1007/JHEP04(2018)033

Aaboud, M, Aad, G, Abbott, B, Abdinov, O, Abeloos, B, Abidi, SH, Abouzeid, OSA, Abraham, NL, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adachi, S, Adamczyk, L, Adelman, J, Adersberger, M, Adye, T, Affolder, AA, Afik, Y, Agheorghiesei, C, Aguilar-Saavedra, JA, Ahlen, SP, Bajic, M, Besjes, G-J, Dam, M, Alonso Diaz, A, de Almeida Dias, F, Hansen, PH , Hansen, JD, Thiele, FAJ, Monk, JW, Stark, SH, Galster, GAGK, Hansen, JB , Petersen, TC , Wiglesworth, G & Xella, S 2018, 'Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV', Journal of High Energy Physics, vol. 2018, no. 4, 033. https://doi.org/10.1007/JHEP04(2018)033

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title = "Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV",

abstract = "This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centreof- mass energies of 7 and 8TeV. The data correspond to integrated luminosities of about 5 and 20 fb–1for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are AC LHC7= 0:005±0:007 (stat) ±0:006 (syst) at 7TeV and AC LHC7= 0:0055 ± 0:0023 (stat) ± 0:0025 (syst) at 8TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the [formula presented] system at 8TeV, are consistent with the respective standard model predictions.",

author = "M. Aaboud and G. Aad and B. Abbott and O. Abdinov and B Abeloos and S.H. Abidi and Abouzeid, {Ossama Sherif Alexander} and NL Abraham and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and B.S. Acharya and Shin-ichi Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and Affolder, {A. A.} and Y. Afik and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and Milena Bajic and Geert-Jan Besjes and Mogens Dam and {Alonso Diaz}, Alejandro and {de Almeida Dias}, Flavia and Hansen, {Peter Henrik} and Hansen, {J{\o}rn Dines} and Thiele, {Fabian Alexander J{\"u}rgen} and Monk, {James William} and Stark, {Simon Holm} and Galster, {Gorm Aske Gram Krohn} and Hansen, {J{\o}rgen Beck} and Petersen, {Troels Christian} and Graig Wiglesworth and Stefania Xella",

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T1 - Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdinov, O.

AU - Abeloos, B

AU - Abidi, S.H.

AU - Abouzeid, Ossama Sherif Alexander

AU - Abraham, NL

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B.S.

AU - Adachi, Shin-ichi

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Bajic, Milena

AU - Besjes, Geert-Jan

AU - Dam, Mogens

AU - Alonso Diaz, Alejandro

AU - de Almeida Dias, Flavia

AU - Hansen, Peter Henrik

AU - Hansen, Jørn Dines

AU - Thiele, Fabian Alexander Jürgen

AU - Monk, James William

AU - Stark, Simon Holm

AU - Galster, Gorm Aske Gram Krohn

AU - Hansen, Jørgen Beck

AU - Petersen, Troels Christian

AU - Wiglesworth, Graig

AU - Xella, Stefania

PY - 2018/1/1

Y1 - 2018/1/1

N2 - This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centreof- mass energies of 7 and 8TeV. The data correspond to integrated luminosities of about 5 and 20 fb–1for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are AC LHC7= 0:005±0:007 (stat) ±0:006 (syst) at 7TeV and AC LHC7= 0:0055 ± 0:0023 (stat) ± 0:0025 (syst) at 8TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the [formula presented] system at 8TeV, are consistent with the respective standard model predictions.

AB - This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centreof- mass energies of 7 and 8TeV. The data correspond to integrated luminosities of about 5 and 20 fb–1for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are AC LHC7= 0:005±0:007 (stat) ±0:006 (syst) at 7TeV and AC LHC7= 0:0055 ± 0:0023 (stat) ± 0:0025 (syst) at 8TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the [formula presented] system at 8TeV, are consistent with the respective standard model predictions.

U2 - 10.1007/JHEP04(2018)033

DO - 10.1007/JHEP04(2018)033

M3 - Journal article

SN - 1126-6708

VL - 2018

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 4

M1 - 033

ER -

Combination of inclusive and differential t(t)over-bar charge asymmetry measurements using ATLAS and CMS data at root S=7 and 8 TeV

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