- Main
Measurement of the top-quark mass in tt¯ + 1-jet events collected with the ATLAS detector in pp collisions at √s = 8 TeV
- Author(s): Aad, G
- Abbott, B
- Abbott, DC
- Abdinov, O
- Abed Abud, A
- Abeling, K
- Abhayasinghe, DK
- Abidi, SH
- AbouZeid, OS
- Abraham, NL
- Abramowicz, H
- Abreu, H
- Abulaiti, Y
- Acharya, BS
- Achkar, B
- Adachi, S
- Adam, L
- Adam Bourdarios, C
- Adamczyk, L
- Adamek, L
- Adelman, J
- Adersberger, M
- Adiguzel, A
- Adorni, S
- Adye, T
- Affolder, AA
- Afik, Y
- Agapopoulou, C
- Agaras, MN
- Aggarwal, A
- Agheorghiesei, C
- Aguilar-Saavedra, JA
- Ahmadov, F
- Ahmed, WS
- Ai, X
- Aielli, G
- Akatsuka, S
- Akesson, TPA
- Akilli, E
- Akimov, AV
- Al Khoury, K
- Alberghi, GL
- Albert, J
- Alconada Verzini, MJ
- Alderweireldt, S
- Aleksa, M
- Aleksandrov, IN
- Alexa, C
- Alexandre, D
- Alexopoulos, T
- Alfonsi, A
- Alhroob, M
- Ali, B
- Alimonti, G
- Alison, J
- Alkire, SP
- Allaire, C
- Allbrooke, BMM
- Allen, BW
- Allport, PP
- Aloisio, A
- Alonso, A
- Alonso, F
- Alpigiani, C
- Alshehri, AA
- Alvarez Estevez, M
- Álvarez Piqueras, D
- Alviggi, MG
- Amaral Coutinho, Y
- Ambler, A
- Ambroz, L
- Amelung, C
- Amidei, D
- Amor Dos Santos, SP
- Amoroso, S
- Amrouche, CS
- An, F
- Anastopoulos, C
- Andari, N
- Andeen, T
- Anders, CF
- Anders, JK
- Andreazza, A
- Andrei, V
- Anelli, CR
- Angelidakis, S
- Angerami, A
- Anisenkov, AV
- Annovi, A
- Antel, C
- Anthony, MT
- Antonelli, M
- Antrim, DJA
- Anulli, F
- Aoki, M
- Aparisi Pozo, JA
- Bella, LA
- Arabidze, G
- Araque, JP
- Araujo Ferraz, V
- et al.
Published Web Location
https://doi.org/10.1007/JHEP11(2019)150Abstract
© 2019, The Author(s). A determination of the top-quark mass is presented using 20.2 fb−1 of 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: mtpole=171.1±0.4(stat)±0.9(syst)−0.3+0.7(theo)GeV The extracted value in the running-mass scheme is: mt(mt)=162.9±0.5(stat)±1.0(syst)−1.2+2.1(theo)GeV. The results for the top-quark mass using the two schemes are consistent, when translated from one scheme to the other. [Figure not available: see fulltext.]