Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector

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

doi:10.1140/epjc/s10052-017-5442-0

Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector

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

Experimental Particle Physics

21 Citations (Scopus)

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Abstract

Measurements of transverse energy–energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to s=8TeV proton–proton collisions with an integrated luminosity of 20.2fb-1. The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of α_s(μ) predicted in QCD up to scales over 1TeV. A global fit to the transverse energy–energy correlation distributions yields αs(mZ)=0.1162±0.0011(exp.)-0.0070+0.0084(theo.), while a global fit to the asymmetry distributions yields a value of αs(mZ)=0.1196±0.0013(exp.)-0.0045+0.0075(theo.).

Original language	English
Article number	872
Journal	European Physical Journal C
Volume	77
Issue number	12
Number of pages	34
ISSN	1434-6044
DOIs	https://doi.org/10.1140/epjc/s10052-017-5442-0
Publication status	Published - 1 Dec 2017

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Aaboud, M., Aad, G., Abbott, B., Abdallah, J., 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., Adersberger, M., Adelman, J., Adye, T., ... Xella, S. (2017). Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector. European Physical Journal C, 77(12), Article 872. https://doi.org/10.1140/epjc/s10052-017-5442-0

Aaboud, M, Aad, G, Abbott, B, Abdallah, J, Abdinov, O, Abeloos, B, Abidi, SH, Abouzeid, OSA, Abraham, NL, Abramowicz, H, Abreu, H, Abreu, R, Abulaiti, Y, Acharya, BS, Adachi, S, Adamczyk, L, Adersberger, M, Adelman, J, Adye, T, Bajic, M, Dam, M , Hansen, JB , Hansen, JD, Alonso Diaz, A, Hansen, PH, Besjes, G-J, Monk, JW, Petersen, TC, Stark, SH, Wiglesworth, G, de Almeida Dias, F, Galster, GAGK, Thiele, FAJ & Xella, S 2017, 'Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector', European Physical Journal C, vol. 77, no. 12, 872. https://doi.org/10.1140/epjc/s10052-017-5442-0

@article{6017edb0dd6e478f98038ae9bc36c69c,

title = "Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector",

abstract = "Measurements of transverse energy–energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to s=8TeV proton–proton collisions with an integrated luminosity of 20.2fb-1. The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of αs(μ) predicted in QCD up to scales over 1TeV. A global fit to the transverse energy–energy correlation distributions yields αs(mZ)=0.1162±0.0011(exp.)-0.0070+0.0084(theo.), while a global fit to the asymmetry distributions yields a value of αs(mZ)=0.1196±0.0013(exp.)-0.0045+0.0075(theo.).",

author = "M. Aaboud and G. Aad and B. Abbott and J. Abdallah 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 Sosuke Adachi and L. Adamczyk and M. Adersberger and J. Adelman and T. Adye and Milena Bajic and Mogens Dam and Hansen, {J{\o}rgen Beck} and Hansen, {J{\o}rn Dines} and {Alonso Diaz}, Alejandro and Hansen, {Peter Henrik} and Geert-Jan Besjes and Monk, {James William} and Petersen, {Troels Christian} and Stark, {Simon Holm} and Graig Wiglesworth and {de Almeida Dias}, Flavia and Galster, {Gorm Aske Gram Krohn} and Thiele, {Fabian Alexander J{\"u}rgen} and Stefania Xella",

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T1 - Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

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, Sosuke

AU - Adamczyk, L.

AU - Adersberger, M.

AU - Adelman, J.

AU - Adye, T.

AU - Bajic, Milena

AU - Dam, Mogens

AU - Hansen, Jørgen Beck

AU - Hansen, Jørn Dines

AU - Alonso Diaz, Alejandro

AU - Hansen, Peter Henrik

AU - Besjes, Geert-Jan

AU - Monk, James William

AU - Petersen, Troels Christian

AU - Stark, Simon Holm

AU - Wiglesworth, Graig

AU - de Almeida Dias, Flavia

AU - Galster, Gorm Aske Gram Krohn

AU - Thiele, Fabian Alexander Jürgen

AU - Xella, Stefania

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Measurements of transverse energy–energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to s=8TeV proton–proton collisions with an integrated luminosity of 20.2fb-1. The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of αs(μ) predicted in QCD up to scales over 1TeV. A global fit to the transverse energy–energy correlation distributions yields αs(mZ)=0.1162±0.0011(exp.)-0.0070+0.0084(theo.), while a global fit to the asymmetry distributions yields a value of αs(mZ)=0.1196±0.0013(exp.)-0.0045+0.0075(theo.).

AB - Measurements of transverse energy–energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to s=8TeV proton–proton collisions with an integrated luminosity of 20.2fb-1. The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of αs(μ) predicted in QCD up to scales over 1TeV. A global fit to the transverse energy–energy correlation distributions yields αs(mZ)=0.1162±0.0011(exp.)-0.0070+0.0084(theo.), while a global fit to the asymmetry distributions yields a value of αs(mZ)=0.1196±0.0013(exp.)-0.0045+0.0075(theo.).

U2 - 10.1140/epjc/s10052-017-5442-0

DO - 10.1140/epjc/s10052-017-5442-0

M3 - Journal article

SN - 1434-6044

VL - 77

JO - European Physical Journal C

JF - European Physical Journal C

IS - 12

M1 - 872

ER -

Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector

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