Determination of the strong coupling constant αs from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector

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Determination of the strong coupling constant α_s from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector. / The ATLAS collaboration; The ATLAS collaboration ; Харламов, Алексей Георгиевич et al.

In: European Physical Journal C, Vol. 77, No. 12, 872, 15.12.2017.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{30a17d9d290e411d8339ce6d1c567335,

title = "Determination of the strong coupling constant αs from transverse energy–energy correlations in multijet events at √s=8TeV 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.).",

keywords = "ELECTRON-POSITRON ANNIHILATION, HADRON-HADRON COLLISIONS, TO-LEADING ORDER, E+E-ANNIHILATION, SHAPE VARIABLES, MODEL, QCD, DISTRIBUTIONS, OBSERVABLES, DEPENDENCE",

author = "{The ATLAS collaboration} and {The ATLAS collaboration} and M. Aaboud and G. Aad and B. Abbott and J. Abdallah and O. Abdinov and B. Abeloos and Abidi, {S. H.} and AbouZeid, {O. S.} and Abraham, {N. L.} and H. Abramowicz and H. Abreu and R. Abreu and Y. Abulaiti and Acharya, {B. S.} and S. Adachi and L. Adamczyk and J. Adelman and M. Adersberger and T. Adye and Affolder, {A. A.} and T. Agatonovic-Jovin and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and Ahlen, {S. P.} and F. Ahmadov and G. Aielli and S. Akatsuka and H. Akerstedt and {\AA}kesson, {T. P.A.} and E. Akilli and Akimov, {A. V.} and Alberghi, {G. L.} and J. Albert and P. Albicocco and {Alconada Verzini}, {M. J.} and M. Aleksa and Aleksandrov, {I. N.} and C. Alexa and G. Alexander and T. Alexopoulos and Anisenkov, {A. V.} and Baldin, {E. M.} and Bobrovnikov, {V. S.} and Buzykaev, {A. R.} and Kazanin, {V. F.} and T. Kharlamova and Korol, {A. A.} and Peleganchuk, {S. V.} and Soukharev, {A. M.} and Talyshev, {A. A.} and Харламов, {Алексей Георгиевич} and Масленников, {Алексей Леонидович} and Максимов, {Дмитрий Александрович} and Bogdanchikov, {A. G.} and Резанова, {Ольга Леонардовна} and Подберёзко, {Павел Сергеевич} and Тихонов, {Юрий Анатольевич}",

note = "{\textcopyright} CERN for the benefit of the ATLAS collaboration 2017.",

year = "2017",

month = dec,

day = "15",

doi = "10.1140/epjc/s10052-017-5442-0",

language = "English",

volume = "77",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer Nature",

number = "12",

}

RIS

TY - JOUR

T1 - Determination of the strong coupling constant αs from transverse energy–energy correlations in multijet events at √s=8TeV using the ATLAS detector

AU - The ATLAS collaboration

AU - Aaboud, M.

AU - Aad, G.

AU - Abbott, B.

AU - Abdallah, J.

AU - Abdinov, O.

AU - Abeloos, B.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abreu, R.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Adachi, S.

AU - Adamczyk, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adye, T.

AU - Affolder, A. A.

AU - Agatonovic-Jovin, T.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahlen, S. P.

AU - Ahmadov, F.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Akerstedt, H.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Alconada Verzini, M. J.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexander, G.

AU - Alexopoulos, T.

AU - Anisenkov, A. V.

AU - Baldin, E. M.

AU - Bobrovnikov, V. S.

AU - Buzykaev, A. R.

AU - Kazanin, V. F.

AU - Kharlamova, T.

AU - Korol, A. A.

AU - Peleganchuk, S. V.

AU - Soukharev, A. M.

AU - Talyshev, A. A.

AU - Харламов, Алексей Георгиевич

AU - Масленников, Алексей Леонидович

AU - Максимов, Дмитрий Александрович

AU - Bogdanchikov, A. G.

AU - Резанова, Ольга Леонардовна

AU - Подберёзко, Павел Сергеевич

AU - Тихонов, Юрий Анатольевич

PY - 2017/12/15

Y1 - 2017/12/15

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.).

KW - ELECTRON-POSITRON ANNIHILATION

KW - HADRON-HADRON COLLISIONS

KW - TO-LEADING ORDER

KW - E+E-ANNIHILATION

KW - SHAPE VARIABLES

KW - MODEL

KW - QCD

KW - DISTRIBUTIONS

KW - OBSERVABLES

KW - DEPENDENCE

UR - http://www.scopus.com/inward/record.url?scp=85038354668&partnerID=8YFLogxK

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

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

M3 - Article

C2 - 31985738

AN - SCOPUS:85038354668

VL - 77

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 12

M1 - 872

ER -

ID: 9867887