Szczegóły publikacji
Opis bibliograficzny
Observation of ${t}\bar{t}$ production in Pb+Pb collisions at $\sqrt{s_{NN}}$=5.02 TeV with the ATLAS detector / G. Aad, [et al.], L. ADAMCZYK, [et al.], P. BALEK, [et al.], T. BOŁD, [et al.], W.E. Bulanowska, [et al.], K. M. CIEŚLA, [et al.], W. DĄBROWSKI, [et al.], K. DOMIJAN, [et al.], M. DYNDAŁ, [et al.], A. K. GILBERT, [et al.], I. GRABOWSKA-BOŁD, [et al.], S. KOPERNY, [et al.], K. MAJ, [et al.], B. MINDUR, [et al.], P. MOSZKOWICZ, [et al.], P. A. POTĘPA, [et al.], M. PRZYBYCIEŃ, [et al.] // Physical Review Letters ; ISSN 0031-9007. — 2025 — vol. 134 iss. 14 art. no. 142301, s. 142301-1–142301-22. — Bibliogr. s. 142301-6–142301-8, Abstr. — Publikacja dostępna online od: 2025-04-07
Autorzy (2885)
- AGHAdamczyk Leszek
- AGHBalek Petr
- AGHBołd Tomasz
- AGHBulanowska Weronika Emilia
- AGHCieśla Krzysztof
- AGHDąbrowski Władysław
- AGHDomijan Karolina
- AGHDyndał Mateusz
- AGHGilbert Alexander
- AGHGrabowska-Bołd Iwona
- AGHKoperny Stefan
- AGHMaj Klaudia
- AGHMindur Bartosz
- AGHMoszkowicz Piotr
- AGHPotępa Patrycja Anna
- AGHPrzybycień Mariusz
- Aad Georges
Dane bibliometryczne
| ID BaDAP | 159522 |
|---|---|
| Data dodania do BaDAP | 2025-05-14 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevLett.134.142301 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
Top-quark pair production is observed in lead–lead (Pb+Pb) collisions at sNN=5.02 TeV at the Large Hadron Collider with the ATLAS detector. The data sample was recorded in 2015 and 2018, amounting to an integrated luminosity of 1.9 nb-1. Events with exactly one electron and one muon and at least two jets are selected. Top-quark pair production is measured with an observed (expected) significance of 5.0 (4.1) standard deviations. The measured top-quark pair production cross section is σtt¯=3.6 -0.9+1.0(stat) -0.5+0.8(syst) μb, with a total relative uncertainty of 31%, and is consistent with theoretical predictions using a range of different nuclear parton distribution functions. The observation of this process consolidates the evidence of the existence of all quark flavors in the preequilibrium stage of the quark-gluon plasma at very high energy densities, similar to the conditions present in the early Universe.
