Please use this identifier to cite or link to this item:
https://hdl.handle.net/20.500.11851/12015
Title: | Observation of Tt Production in the Lepton Plus Jets and Dilepton Channels in P Plus Pb Collisions at Snn=8.16 Tev With the Atlas Detector | Authors: | Aad, G. Aakvaag, E. Abbott, B. Abdelhameed, S. Abeling, K. Abicht, N. J. Zwalinski, L. |
Keywords: | Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Heavy Ion Experiments Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics Top Physics |
Publisher: | Springer | Abstract: | This paper reports the observation of top-quark pair production in proton-lead collisions in the ATLAS experiment at the Large Hadron Collider. The measurement is performed using 165 nb-1 of p+Pb data collected at sNN = 8.16 TeV in 2016. Events are categorised in two analysis channels, consisting of either events with exactly one lepton (electron or muon) and at least four jets, or events with two opposite-charge leptons and at least two jets. In both channels at least one b-tagged jet is also required. Top-quark pair production is observed with a significance over five standard deviations in each channel. The top-quark pair production cross-section is measured to be sigma tt=58.1 +/- 2.0stat.-4.4+4.8syst. nb, with a total uncertainty of 9%. In addition, the nuclear modification factor is measured to be RpA=1.090 +/- 0.039stat.-0.087+0.094syst.. The measurements are found to be in good agreement with theory predictions involving nuclear parton distribution functions. | Description: | Konstantinidis, Nikolaos/0000-0002-4140-6360; Mlinarevic, Marin/0000-0003-3587-646X; Butterworth, Jonathan/0000-0002-5905-5394 | URI: | https://doi.org/10.1007/JHEP11(2024)101 | ISSN: | 1029-8479 |
Appears in Collections: | Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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