Szczegóły publikacji

Opis bibliograficzny

Search for top-philic heavy resonances in pp collisions at $\sqrt{s}$=13 TeV with the ATLAS detector / G. Aad, [et al.], L. ADAMCZYK, [et al.], P. BALEK, [et al.], T. BOŁD, [et al.], K. M. CIEŚLA, [et al.], W. DĄBROWSKI, [et al.], M. DYNDAŁ, [et al.], A. K. GILBERT, [et al.], I. GRABOWSKA-BOŁD, [et al.], K. W. JANAS, [et al.], S. KOPERNY, [et al.], I. K. ŁAKOMIEC, [et al.], K. MAJ, [et al.], B. MINDUR, [et al.], A. OGRODNIK, [et al], P. A. POTĘPA, [et al.], M. PRZYBYCIEŃ, [et al.], R. SIKORA, [et al.] // The European Physical Journal . C, Particles and Fields ; ISSN 1434-6044. — 2024 — vol. 84 iss. 2 art. no. 157, s. 1–32. — Bibliogr. s. 15–18, Abstr. — Publikacja dostępna online od: 2024-02-15

Autorzy (2919)

Dane bibliometryczne

ID BaDAP	153718
Data dodania do BaDAP	2024-06-18
Tekst źródłowy	URL
DOI	10.1140/epjc/s10052-023-12318-9
Rok publikacji	2024
Typ publikacji	artykuł w czasopiśmie
Otwarty dostęp
Creative Commons
Czasopismo/seria	European Physical Journal, C

Abstract

A search for the associated production of a heavy resonance with a top-quark or a top-antitop-quark pair, and decaying into a ttˉttˉ pair is presented. The search uses the data recorded by the ATLAS detector in pp collisions at s=13s =13 TeVTeV at the Large Hadron Collider during the years 2015–2018, corresponding to an integrated luminosity of 139 fb−1fb−1. Events containing exactly one electron or muon are selected. The two hadronically decaying top quarks from the resonance decay are reconstructed using jets clustered with a large radius parameter of R=1R=1. The invariant mass spectrum of the two top quark candidates is used to search for a resonance signal in the range of 1.0 TeVTeV to 3.2 TeVTeV. The presence of a signal is examined using an approach with minimal model dependence followed by a model-dependent interpretation. No significant excess is observed over the background expectation. Upper limits on the production cross section times branching ratio at 95% confidence level are provided for a heavy Z′Z′ boson based on a simplified model, for Z′Z′ mass between 1.0 TeVTeV and 3.0 TeVTeV. The observed (expected) limits range from 21 (14) fb to 119 (86) fb depending on the choice of model parameters.

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