Szczegóły publikacji
Opis bibliograficzny
Search for pair production of heavy particles decaying to a top quark and a gluon in the lepton+jets final state in proton–proton collisions at $\sqrt{s}$ = 13 TeV / A. Hayrapetyan, [et al.], V. AVATI, L. GRZANKA, M. MALAWSKI, [et al.] // The European Physical Journal . C, Particles and Fields ; ISSN 1434-6044. — 2025 — vol. 85 iss. 3 art. no. 342, s. 1–29. — Bibliogr. s. 11-14, Abstr. — Publikacja dostępna online od: 2025-03-25
Autorzy (2406)
- AGHAvati Valentina
- AGHGrzanka Leszek
- AGHMalawski Maciej
- Hayrapetyan Aram
Dane bibliometryczne
| ID BaDAP | 166320 |
|---|---|
| Data dodania do BaDAP | 2026-03-27 |
| Tekst źródłowy | URL |
| DOI | 10.1140/epjc/s10052-024-13729-y |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | European Physical Journal, C |
Abstract
A search is presented for the pair production of new heavy resonances, each decaying into a top quark (t) or antiquark and a gluon (g). The analysis uses data recorded with the CMS detector from proton–proton collisions at a center-of-mass energy of 13TeV at the LHC, corresponding to an integrated luminosity of 138fb-1. Events with one muon or electron, multiple jets, and missing transverse momentum are selected. After using a deep neural network to enrich the data sample with signal-like events, distributions in the scalar sum of the transverse momenta of all reconstructed objects are analyzed in the search for a signal. No significant deviations from the standard model prediction are found. Upper limits at 95% confidence level are set on the product of cross section and branching fraction squared for the pair production of excited top quarks in the t∗→tg decay channel. The upper limits range from 120 to 0.8fb for a t∗with spin-1/2 and from 15 to 1.0fb for a t∗with spin-3/2. These correspond to mass exclusion limits up to 1050 and 1700GeV for spin-1/2 and spin-3/2 t∗particles, respectively. These are the most stringent limits to date on the existence of t∗→tg resonances.
