Measurement of the top-quark mass in tt + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV

The ATLAS Collaboration

Measurement of the top-quark mass in tt + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV

The ATLAS Collaboration

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

Abstract

A determination of the top-quark mass is presented using 20.2 fb^-1of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is: m^pole_t= 171.1 ± 0.4 (stat) ± 0.9 (syst)^+0.7_-0.3(theo) GeV. The extracted value in the running-mass scheme is: m_t(m_t) = 162.9 ± 0.5 (stat) ± 1.0 (syst)^+2.1_-1.2(theo) GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other.

Original language	English (US)
Journal	Unknown Journal
State	Published - May 6 2019

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@article{65163d9ca932457ab620034be8fc9969,

title = "Measurement of the top-quark mass in tt + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV",

abstract = "A determination of the top-quark mass is presented using 20.2 fb-1of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is: mpolet= 171.1 ± 0.4 (stat) ± 0.9 (syst)+0.7-0.3(theo) GeV. The extracted value in the running-mass scheme is: mt(mt) = 162.9 ± 0.5 (stat) ± 1.0 (syst)+2.1-1.2(theo) GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other.",

author = "{The ATLAS Collaboration} and G. Aad and B. Abbott and Abbott, {D. C.} and O. Abdinov and Abud, {A. Abed} and K. Abeling and Abhayasinghe, {D. K.} and Abidi, {S. H.} and AbouZeid, {O. S.} and Abraham, {N. L.} and H. Abramowicz and H. Abreu and Y. Abulaiti and Acharya, {B. S.} and B. Achkar and S. Adachi and L. Adam and Bourdarios, {C. Adam} and L. Adamczyk and L. Adamek and J. Adelman and M. Adersberger and A. Adiguzel and S. Adorni and T. Adye and Affolder, {A. A.} and Y. Afik and C. Agapopoulou and Agaras, {M. N.} and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, {J. A.} and F. Ahmadov and Ahmed, {W. S.} and X. Ai and G. Aielli and S. Akatsuka and {\AA}kesson, {T. P.A.} and E. Akilli and Akimov, {A. V.} and {Al Khoury}, K. and Alberghi, {G. L.} and J. Albert and Verzini, {M. J.Alconada} and S. Alderweireldt and M. Aleksa and E. Cheu and Johns, {K. A.} and Rutherfoord, {J. P.} and Varnes, {E. W.}",

year = "2019",

month = may,

day = "6",

language = "English (US)",

journal = "Nuclear Physics A",

issn = "0375-9474",

publisher = "Elsevier",

}

TY - JOUR

T1 - Measurement of the top-quark mass in tt + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV

AU - The ATLAS Collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abdinov, O.

AU - Abud, A. Abed

AU - Abeling, K.

AU - Abhayasinghe, D. K.

AU - Abidi, S. H.

AU - AbouZeid, O. S.

AU - Abraham, N. L.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Acharya, B. S.

AU - Achkar, B.

AU - Adachi, S.

AU - Adam, L.

AU - Bourdarios, C. Adam

AU - Adamczyk, L.

AU - Adamek, L.

AU - Adelman, J.

AU - Adersberger, M.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agapopoulou, C.

AU - Agaras, M. N.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ai, X.

AU - Aielli, G.

AU - Akatsuka, S.

AU - Åkesson, T. P.A.

AU - Akilli, E.

AU - Akimov, A. V.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Verzini, M. J.Alconada

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Cheu, E.

AU - Johns, K. A.

AU - Rutherfoord, J. P.

AU - Varnes, E. W.

PY - 2019/5/6

Y1 - 2019/5/6

N2 - A determination of the top-quark mass is presented using 20.2 fb-1of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is: mpolet= 171.1 ± 0.4 (stat) ± 0.9 (syst)+0.7-0.3(theo) GeV. The extracted value in the running-mass scheme is: mt(mt) = 162.9 ± 0.5 (stat) ± 1.0 (syst)+2.1-1.2(theo) GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other.

AB - A determination of the top-quark mass is presented using 20.2 fb-1of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of top-quark pair production in association with an energetic jet is measured in the lepton+jets final state and unfolded to parton and particle levels. The unfolded distribution at parton level can be described using next-to-leading-order QCD predictions in terms of either the top-quark pole mass or the running mass as defined in the (modified) minimal subtraction scheme. A comparison between the experimental distribution and the theoretical prediction allows the top-quark mass to be extracted in the two schemes. The value obtained for the pole-mass scheme is: mpolet= 171.1 ± 0.4 (stat) ± 0.9 (syst)+0.7-0.3(theo) GeV. The extracted value in the running-mass scheme is: mt(mt) = 162.9 ± 0.5 (stat) ± 1.0 (syst)+2.1-1.2(theo) GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other.

UR - http://www.scopus.com/inward/record.url?scp=85094444306&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85094444306&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85094444306

JO - Nuclear Physics A

JF - Nuclear Physics A

SN - 0375-9474

ER -