Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

The ATLAS collaboration

doi:10.1007/JHEP06(2023)138

Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

The ATLAS collaboration

Ben-Gurion University of the Negev, Technion - Israel Institute of Technology, Tel Aviv University

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

Abstract

The inclusive top-quark pair (tt¯) production cross-section σ_t_t¯ is measured in proton–proton collisions at a centre-of-mass energy s = 5.02 TeV, using 257 pb⁻¹ of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yields σtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb, where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x. [Figure not available: see fulltext.]

Original language	American English
Article number	138
Journal	Journal of High Energy Physics
Volume	2023
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2023)138
State	Published - 1 Jun 2023

Keywords

Hadron-Hadron Scattering
Top Physics

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

Access to Document

10.1007/JHEP06(2023)138

Cite this

@article{2da8541529a7486598e977873a410622,

title = "Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector",

abstract = "The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yields σtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb, where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9\%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x. [Figure not available: see fulltext.]",

keywords = "Hadron-Hadron Scattering, Top Physics",

author = "\{The ATLAS collaboration\} and G. Aad and B. Abbott and Abbott, \{D. C.\} and K. Abeling and Abidi, \{S. H.\} and A. Aboulhorma and H. Abramowicz and H. Abreu and Y. Abulaiti and \{Abusleme Hoffman\}, \{A. C.\} and Acharya, \{B. S.\} and B. Achkar and \{Adam Bourdarios\}, C. and L. Adamczyk and L. Adamek and Addepalli, \{S. V.\} and J. Adelman and A. Adiguzel and S. Adorni and T. Adye and Affolder, \{A. A.\} and Y. Afik and Agaras, \{M. N.\} and J. Agarwala and A. Aggarwal and C. Agheorghiesei and Aguilar-Saavedra, \{J. A.\} and A. Ahmad and F. Ahmadov and Ahmed, \{W. S.\} and S. Ahuja and X. Ai and G. Aielli and I. Aizenberg and M. Akbiyik and {\AA}kesson, \{T. P.A.\} and Akimov, \{A. V.\} and \{Al Khoury\}, K. and Alberghi, \{G. L.\} and J. Albert and P. Albicocco and \{Alconada Verzini\}, \{M. J.\} and S. Alderweireldt and M. Aleksa and Aleksandrov, \{I. N.\} and C. Alexa and T. Alexopoulos and A. Alfonsi and F. Alfonsi and Citron, \{Z. H.\} and S. Istin and E. Kajomovitz and Y. Rozen and S. Tarem and D. Melini and C. Appelt and L. Barak and U. Barron and G. Bella and Y. Benhammou and B. Chen and H. Cohen and E. Etzion and G. Koren and O. Kuprash and Lutz, \{M. S.\} and R. Nayak and \{Pascual Dominguez\}, L. and D. Reikher and \{Salvador Salas\}, A. and A. Soffer and Tamir, \{N. M.\} and D. Vannicola",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = jun,

day = "1",

doi = "10.1007/JHEP06(2023)138",

language = "American English",

volume = "2023",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "6",

}

TY - JOUR

T1 - Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

AU - The ATLAS collaboration

AU - Aad, G.

AU - Abbott, B.

AU - Abbott, D. C.

AU - Abeling, K.

AU - Abidi, S. H.

AU - Aboulhorma, A.

AU - Abramowicz, H.

AU - Abreu, H.

AU - Abulaiti, Y.

AU - Abusleme Hoffman, A. C.

AU - Acharya, B. S.

AU - Achkar, B.

AU - Adam Bourdarios, C.

AU - Adamczyk, L.

AU - Adamek, L.

AU - Addepalli, S. V.

AU - Adelman, J.

AU - Adiguzel, A.

AU - Adorni, S.

AU - Adye, T.

AU - Affolder, A. A.

AU - Afik, Y.

AU - Agaras, M. N.

AU - Agarwala, J.

AU - Aggarwal, A.

AU - Agheorghiesei, C.

AU - Aguilar-Saavedra, J. A.

AU - Ahmad, A.

AU - Ahmadov, F.

AU - Ahmed, W. S.

AU - Ahuja, S.

AU - Ai, X.

AU - Aielli, G.

AU - Aizenberg, I.

AU - Akbiyik, M.

AU - Åkesson, T. P.A.

AU - Akimov, A. V.

AU - Al Khoury, K.

AU - Alberghi, G. L.

AU - Albert, J.

AU - Albicocco, P.

AU - Alconada Verzini, M. J.

AU - Alderweireldt, S.

AU - Aleksa, M.

AU - Aleksandrov, I. N.

AU - Alexa, C.

AU - Alexopoulos, T.

AU - Alfonsi, A.

AU - Alfonsi, F.

AU - Citron, Z. H.

AU - Istin, S.

AU - Kajomovitz, E.

AU - Rozen, Y.

AU - Tarem, S.

AU - Melini, D.

AU - Appelt, C.

AU - Barak, L.

AU - Barron, U.

AU - Bella, G.

AU - Benhammou, Y.

AU - Chen, B.

AU - Cohen, H.

AU - Etzion, E.

AU - Koren, G.

AU - Kuprash, O.

AU - Lutz, M. S.

AU - Nayak, R.

AU - Pascual Dominguez, L.

AU - Reikher, D.

AU - Salvador Salas, A.

AU - Soffer, A.

AU - Tamir, N. M.

AU - Vannicola, D.

PY - 2023/6/1

Y1 - 2023/6/1

N2 - The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yields σtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb, where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x. [Figure not available: see fulltext.]

AB - The inclusive top-quark pair (tt¯) production cross-section σtt¯ is measured in proton–proton collisions at a centre-of-mass energy s = 5.02 TeV, using 257 pb−1 of data collected in 2017 by the ATLAS experiment at the LHC. The tt¯ cross-section is measured in both the dilepton and single-lepton final states of the tt¯ system and then combined. The combination of the two measurements yields σtt¯=67.5±0.9(stat.)±2.3(syst.)±1.1(lumi.)±0.2(beam)pb, where the four uncertainties reflect the limited size of the data sample, experimental and theoretical systematic effects, and imperfect knowledge of both the integrated luminosity and the LHC beam energy, giving a total uncertainty of 3.9%. The result is in agreement with theoretical quantum chromodynamic calculations at next-to-next-to-leading order in the strong coupling constant, including the resummation of next-to-next-to-leading logarithmic soft-gluon terms, and constrains the parton distribution functions of the proton at large Bjorken-x. [Figure not available: see fulltext.]

KW - Hadron-Hadron Scattering

KW - Top Physics

UR - http://www.scopus.com/inward/record.url?scp=85163625862&partnerID=8YFLogxK

U2 - 10.1007/JHEP06(2023)138

DO - 10.1007/JHEP06(2023)138

M3 - Article

SN - 1126-6708

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 138

ER -

Measurement of the tt¯ production cross-section in pp collisions at √s = 5.02 TeV with the ATLAS detector

Abstract

Keywords

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this