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ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV. / Collaboration, ATLAS; Barton, A.E.; Bertram, I.A. et al.
In: European Physical Journal D, Vol. 79, No. 11, 970, 25.11.2019.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Collaboration, ATLAS, Barton, AE, Bertram, IA, Borissov, G, Bouhova-Thacker, EV, Fox, H, Henderson, RCW, Jones, RWL, Kartvelishvili, V, Long, RE, Love, PA, Muenstermann, D, Parker, AJ, Sanderswood, I, Smizanska, M, Tee, AS, Walder, J, Wharton, AM, Whitmore, BW & Yexley, M 2019, 'ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV', European Physical Journal D, vol. 79, no. 11, 970. https://doi.org/10.1140/epjc/s10052-019-7450-8

APA

Collaboration, ATLAS., Barton, A. E., Bertram, I. A., Borissov, G., Bouhova-Thacker, E. V., Fox, H., Henderson, R. C. W., Jones, R. W. L., Kartvelishvili, V., Long, R. E., Love, P. A., Muenstermann, D., Parker, A. J., Sanderswood, I., Smizanska, M., Tee, A. S., Walder, J., Wharton, A. M., Whitmore, B. W., & Yexley, M. (2019). ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV. European Physical Journal D, 79(11), Article 970. https://doi.org/10.1140/epjc/s10052-019-7450-8

Vancouver

Collaboration ATLAS, Barton AE, Bertram IA, Borissov G, Bouhova-Thacker EV, Fox H et al. ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV. European Physical Journal D. 2019 Nov 25;79(11):970. doi: 10.1140/epjc/s10052-019-7450-8

Author

Collaboration, ATLAS ; Barton, A.E. ; Bertram, I.A. et al. / ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV. In: European Physical Journal D. 2019 ; Vol. 79, No. 11.

Bibtex

@article{addcd07cbfd34841abf1de1d3b8cffc4,
title = "ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV",
abstract = "The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing b-hadrons are presented. The performance of the algorithms is evaluated in the simulation and the efficiency with which these algorithms identify jets containing b-hadrons is measured in collision data. The measurement uses a likelihood-based method in a sample highly enriched in tt¯ events. The topology of the t→Wb decays is exploited to simultaneously measure both the jet flavour composition of the sample and the efficiency in a transverse momentum range from 20 to 600 GeV. The efficiency measurement is subsequently compared with that predicted by the simulation. The data used in this measurement, corresponding to a total integrated luminosity of 80.5 fb−1, were collected in proton–proton collisions during the years 2015–2017 at a centre-of-mass energy s√= 13 TeV. By simultaneously extracting both the efficiency and jet flavour composition, this measurement significantly improves the precision compared to previous results, with uncertainties ranging from 1 to 8% depending on the jet transverse momentum.",
author = "ATLAS Collaboration and A.E. Barton and I.A. Bertram and G. Borissov and E.V. Bouhova-Thacker and H. Fox and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and R.E. Long and P.A. Love and D. Muenstermann and A.J. Parker and Izaac Sanderswood and M. Smizanska and A.S. Tee and J. Walder and A.M. Wharton and B.W. Whitmore and Melissa Yexley",
year = "2019",
month = nov,
day = "25",
doi = "10.1140/epjc/s10052-019-7450-8",
language = "English",
volume = "79",
journal = "European Physical Journal D",
issn = "1434-6060",
publisher = "Springer New York LLC",
number = "11",

}

RIS

TY - JOUR

T1 - ATLAS b-jet identification performance and efficiency measurement with tt¯ events in pp collisions at √s=13 TeV

AU - Collaboration, ATLAS

AU - Barton, A.E.

AU - Bertram, I.A.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Fox, H.

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Long, R.E.

AU - Love, P.A.

AU - Muenstermann, D.

AU - Parker, A.J.

AU - Sanderswood, Izaac

AU - Smizanska, M.

AU - Tee, A.S.

AU - Walder, J.

AU - Wharton, A.M.

AU - Whitmore, B.W.

AU - Yexley, Melissa

PY - 2019/11/25

Y1 - 2019/11/25

N2 - The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing b-hadrons are presented. The performance of the algorithms is evaluated in the simulation and the efficiency with which these algorithms identify jets containing b-hadrons is measured in collision data. The measurement uses a likelihood-based method in a sample highly enriched in tt¯ events. The topology of the t→Wb decays is exploited to simultaneously measure both the jet flavour composition of the sample and the efficiency in a transverse momentum range from 20 to 600 GeV. The efficiency measurement is subsequently compared with that predicted by the simulation. The data used in this measurement, corresponding to a total integrated luminosity of 80.5 fb−1, were collected in proton–proton collisions during the years 2015–2017 at a centre-of-mass energy s√= 13 TeV. By simultaneously extracting both the efficiency and jet flavour composition, this measurement significantly improves the precision compared to previous results, with uncertainties ranging from 1 to 8% depending on the jet transverse momentum.

AB - The algorithms used by the ATLAS Collaboration during Run 2 of the Large Hadron Collider to identify jets containing b-hadrons are presented. The performance of the algorithms is evaluated in the simulation and the efficiency with which these algorithms identify jets containing b-hadrons is measured in collision data. The measurement uses a likelihood-based method in a sample highly enriched in tt¯ events. The topology of the t→Wb decays is exploited to simultaneously measure both the jet flavour composition of the sample and the efficiency in a transverse momentum range from 20 to 600 GeV. The efficiency measurement is subsequently compared with that predicted by the simulation. The data used in this measurement, corresponding to a total integrated luminosity of 80.5 fb−1, were collected in proton–proton collisions during the years 2015–2017 at a centre-of-mass energy s√= 13 TeV. By simultaneously extracting both the efficiency and jet flavour composition, this measurement significantly improves the precision compared to previous results, with uncertainties ranging from 1 to 8% depending on the jet transverse momentum.

U2 - 10.1140/epjc/s10052-019-7450-8

DO - 10.1140/epjc/s10052-019-7450-8

M3 - Journal article

VL - 79

JO - European Physical Journal D

JF - European Physical Journal D

SN - 1434-6060

IS - 11

M1 - 970

ER -